| Subject | Date Asked |
|
| serial number match | 11/20/2009 |
Q: Could you tell me if is possible to match the purchase of a heating unit if I have the Model,Make ...
A: Manufactures do not keep track of who buy what on the small stuff. There is just too many units out ...
|
| furnace selection | 11/17/2009 |
Q: I am thinking of purchasing a carrier infinity 96 furnace what type of repair record would they ...
A: I have a Rheem heatpump all electric. It was installed by the builder, not my choice. I have not ...
|
| Ruud Compressor UPKB030BAZ | 11/17/2009 |
Q: Compressor on Ruud model UPKB030BAZ must be replaced per service tech. It is only 3 months out of ...
A: The reason for the fail compressor may not show up until the new is installed. Once the new is ...
|
| Commercial Rooftop Furnace won' stay lit | 11/17/2009 |
Q: Carrier Commercial Rooftop Furnace Model 48KL-024-311BF 48KL-024-300BF About 1 1/2 years ago, I ...
A: The following is based on the wiring diagram I believe to be for this unit from the factory. The ...
|
| Corsaire(Rheem) | 11/16/2009 |
Q: Thermostat set to hold at 70' & a few seconds later it reads 60' hold. The flame ignites, but only ...
A: I am not sure what the issue is with the thermostat. Since you did not tell my what type, I do not ...
|
| Ruud Compressor UPKB030BAZ | 11/16/2009 |
Q: Compressor on Ruud model UPKB030BAZ must be replaced per service tech. It is only 3 months out of ...
A: You can contact RUUD with the model and serial number. They will tell you what warranty came with ...
|
| Heat Pumps (and A/C, now) Won't Turn On | 11/16/2009 |
Q: I have two heat pumps (3 ton and a smaller unit) and neither one will turn on (heat or A/C). I've ...
A: The one common issue is power. You could be having a power problem to the units. You may have even ...
|
| furnace selection | 11/15/2009 |
Q: I am thinking of purchasing a carrier infinity 96 furnace what type of repair record would they ...
A: Be to honest, I would put in the cheapest thing I could find with the brands "I" prefer. You can ...
|
| Carrier furnace Model# 58SXC08100JG | 11/15/2009 |
Q: I have a Carrier furnace Model# 58SXC08100JG with control board # CESO110057-00 that at time it the ...
A: There are several things that can go wrong with a furnace. It can be anything from a bad pressur ...
|
| american standard freedom 70 propane furnace | 11/14/2009 |
Q: our furnace is 9 years old. It is american standard freedom 70 propane with one zone. Recently, ...
A: Furnaces have many safeties and issues that can cause them to fail. A common issue is a dirty flame ...
|
| Multi Position gas Furnace GMP series (Goodman Manuf) | 11/14/2009 |
Q: This gas furnace is in the middle of a one floor apartment, inside a compartment adjacent to a ...
A: There are many things that can fail on a furnace. Age can be a factor as well. As you did not tell ...
|
| Intertherm electric furnace | 11/12/2009 |
Q: I had to buy a new sequencer for my furnace and I need the wiring schematic to replace the new one.
A: Some units have the diagram pasted on the inside or in the manual. I did a google search for ...
|
| Conquest 90 furnace | 11/12/2009 |
Q: I woke up in the middle of the night and the house was cold. I checked the thermostat and it was 59 ...
A: From what I was able to find without a model number, you have a three speed motor. The problem can ...
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| Conquest 90 furnace | 11/12/2009 |
Q: I woke up in the middle of the night and the house was cold. I checked the thermostat and it was 59 ...
A: T-stats do not fail all that often, and it seems it is not the problem in this case. Your furnace ...
|
| Amana Gas Pack Model PGD24C0702D | 11/11/2009 |
Q: I had a technician come out and look at it. It was one of 4 things I thought it would be: Ignitor, ...
A: I understand companies have to charge to make money, that is what they do (including the company I ...
|
| AC Unit.... what to do??? | 11/10/2009 |
Q: I'm very confused about a problem with my outside AC Unit and would be really grateful to hear your ...
A: You have an odd issue, one that I have never seen or heard before. When motor bearings go bad, they ...
|
| Noma programmable thermostat 52-2557-0 | 11/10/2009 |
Q: The fan on my gas furnace will not blow when it is set to 'auto'. It works fine when I set my noma ...
A: The likely source of the problem is not the thermostat, but the furnace itself. Not that is does ...
|
| Amana Gas Pack Model PGD24C0702D | 11/10/2009 |
Q: I had a technician come out and look at it. It was one of 4 things I thought it would be: Ignitor, ...
A: I am also not sure if the tech really knows the problem is with the valve, or just trying to ...
|
| Amana Gas Pack Model PGD24C0702D | 11/9/2009 |
Q: I had a technician come out and look at it. It was one of 4 things I thought it would be: Ignitor, ...
A: I am not sure what an "upgrade kit" is. You need to call them and get very detailed info on what ...
|
| Goodman unit heating question | 11/9/2009 |
Q: The unit in question is heat pump unit, the inside unit model#ARUF049-00A-1A is and the outside unit ...
A: That is good, because I have seen issues where that is not the case. There are a few things to ...
|
| THERMOSTAT WIRE COLOR OREINTAION | 11/8/2009 |
Q: WHAT DOES RED, YELLOW,ECT. STAT WIRE GO TO. LIKE YELLOW IS COMPRESSOR/ FOR HEAT PUMP AND STRAIGHT ...
A: The typical wiring is Red to R (hot) Green to G (fan) Yellow to Y (cool) white to w or E ...
|
| Flush refrigerant lines/ copper vs. steel coil | 11/6/2009 |
Q: We have 4 contractor quotes on replacing our 15 year old central A/C. One contractor said he ...
A: It is a requirement to change the lines or flush them out when going from a R-22 system to ...
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| No air blowing out through the vents | 11/5/2009 |
Q: Currently, when I turn on my furnace, the thermostat shows that it's on and there is heat coming out ...
A: With variations on the way different units are controlled internally, without the model number it ...
|
| Commercial Rooftop Furnace won' stay lit | 10/28/2009 |
Q: Carrier Commercial Rooftop Furnace Model 48KL-024-311BF 48KL-024-300BF About 1 1/2 years ago, I ...
A: If the furnace will light each and every time with the fan off and not with the fan on, then there ...
|
| Lighting gas furnace pilot | 10/26/2009 |
Q: Last week when I went to turn on the heat it blew only cold air. I called in a technician and they ...
A: I did a simple search and found this... ...
|
| Robershaw 7200DER gas valve. | 10/26/2009 |
Q: I have a 17-yr-old Robertshaw 7200DER gas valve that was malfunctioning; it would let a little gas ...
A: Assuming the furnace is in good working order, there is no reason to replace it. You should be able ...
|
| air velocity | 10/26/2009 |
Q: Background: I must measure air flow in a firing range at the shooter's position. Guidelines ...
A: If the velocity needs to be a constant 50-75, then is should remain that at all times. As I am not ...
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| A/C troublshooting | 10/25/2009 |
Q: I've been doing building maintenance for over 10 years. I went to trade school for 1 year for basic ...
A: I went to school for 5 years, and have worked hands on with others in the field. I still continue ...
|
| Carrier A/C fan | 10/25/2009 |
Q: I just purchased a house with a high efficiency Carrier A/C unit. Even with the thermostat is in ...
A: The fan should not turn of with the thermostat set to off and auto. It might be possible to someone ...
|
| Lennox G40UH Furnace/Air - - No Heat | 10/24/2009 |
Q: I have changed out the silicon ignitor in the furnace 2 times in the last 4 years. They stopped ...
A: All units are different, but the basics are there. Pressure switch, rollout, high temp etc. The ...
|
| Lennox G40UH Furnace/Air - - No Heat | 10/24/2009 |
Q: I have changed out the silicon ignitor in the furnace 2 times in the last 4 years. They stopped ...
A: The voltage on the secondary side of the transformer is a bit high. It should be 24v. At 30v, it ...
|
| AC COVER | 10/24/2009 |
Q: I just purchased a new Trane XR15, 2.5 ton; 32 ins high & 32 x 35; Model#4TTR5030E1000AA. The heater ...
A: Most people do not cover up the unit during the winter. Units just keep on working year after year ...
|
| heater won't turn on | 10/23/2009 |
Q: A/C works fine as well as the fan. A/C kicks on quickly, so does the fan on the auto fan switch ...
A: There are common problems with certain issues. An issue with nothing happening can lead to many ...
|
| Lennox furnace G40UH-36A-70 | 10/22/2009 |
Q: Just about to replace 17-year-old old gas furnace with new one. I trust my dealer implicitly as they ...
A: I do not deal with furnaces often. I really can not say if one is better then the other. The key ...
|
| Trane Air Conditioner Coil Leak | 10/22/2009 |
Q: I've just had my annual HVAC check and was told that the freon was low, even though I did not feel a ...
A: Without the model and ser. number of the unit, it is impossible to price out repairs on units. It ...
|
| blower fan problem | 10/22/2009 |
Q: I have a Carrier HVAC unit and a Totaline thermostat. recently i had to remove the blower fan ...
A: Some units use different speeds for heating and cooling. It is possible the speed for heat is bad, ...
|
| Furnace Bang/Hot Water Heater not working right | 10/21/2009 |
Q: We recently had a friend of a friend work on our system. He replaced the A coil (I think that's what ...
A: Any contractor that works with gas on a normal basis should have a pressure gauge for measuring the ...
|
| fan motors blowing circuits | 10/21/2009 |
Q: We have installed 4 2hp motors with trunking in our church attic to ensure ventalation, ALL on ...
A: HEAT!!! Here is my two cents worth. Motor are designed to work at a give rise above the air temp ...
|
| heat wont kick on | 10/21/2009 |
Q: i have a HEIL heating and cooling system (gas) the air conditioner works fine but the heat wont kick ...
A: Most of the new units have a control board in them with a blinking troubleshooting code. The board ...
|
| central heat system blowing cold air | 10/20/2009 |
Q: When i turn the unit on, it blows cold air of course. I shook wires, checked fans. I have 2 fans ...
A: The unit contains a control board. Since the unit is not working, the control board should indicate ...
|
| 22 yr gas furnace repair or replace? | 10/20/2009 |
Q: I have a 22 yr Payne gas furnace with a continuous running blower. Should I repair it or replace it ...
A: To fix the blower problem will be cheaper then replacing the unit. A furnace that is 22 years old ...
|
| Simple Comfort 3001 Reset | 10/20/2009 |
Q: I have a Simple Comfort 3001 that has been reading 99 degrees as the house hold temperature since ...
A: You can try a couple of things. Follow the directions to remove the cover. There should be some ...
|
| Furnace Bang/Hot Water Heater not working right | 10/19/2009 |
Q: We recently had a friend of a friend work on our system. He replaced the A coil (I think that's what ...
A: The coil has nothing to do with the heat to start with. There doe seem to be a common issue, that ...
|
| Transformer | 10/19/2009 |
Q: I believe I have a bad transformer in my Coleman furnace, as there is a constant buzzing sound. The ...
A: A buzzing transformer does not mean it is bad. Normally they do not make any noise, but I have ...
|
| High Humdity in House | 10/19/2009 |
Q: I recently installed a new 3 Ton Heat Pump and since then I have experienced very high humidity in ...
A: One of the common reasons for high humidity in the home is an over-sized unit. Even with the ...
|
| elle. furnace | 10/18/2009 |
Q: I have a nordyne 53,000 btu ele. furnace model no# FEH-015HA-04. my problem is that the fan runs ...
A: The problem is normally not the thermostat. It can be any of the number of control devices and/or ...
|
| Ruud 90 plus achiver furnace | 10/18/2009 |
Q: ..My furnace started and run for about 15 minutes and then shut down. This is the first time I ...
A: Until a pressure gauge that is designed to read the pressure is used, there is no way to know if the ...
|
| heating | 10/18/2009 |
Q: my upstairs heat is warm but my downstairs is blowing cool air, stays on for about 2 min. an goes ...
A: If the unit is going on and off, there nothing needs to be reset in the unit. Without knowing what ...
|
| Furnace | 10/18/2009 |
Q: My ruud achiever 90 furnace wasn't blowing hot air. I check the code for the flashing led light, and ...
A: Until a pressure gauge that is designed to read the pressure is used, there is no way to know if the ...
|
| ruud furnace inducer motor or switch | 10/17/2009 |
Q: RUUD 90 UGED MODEL, THE FURNACE WILL NOT LIGHT OR STAY LIT,UNLESS I DISCONNECT THE RUBBER CONNECTOR ...
A: Until a pressure gauge that is designed to read the pressure is used, there is no way to know. You ...
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| duct cleaning | 10/17/2009 |
Q: .the house here is twenty something years old, and i have been here at least 12 years. during the ...
A: It is rare that ducts ever get dirty enough to restrict air flow. It is not going to make the unit ...
|
| miller gas furnace | 10/16/2009 |
Q: MY MILLER GAS FURNACE,STANDING PILOT ,WILL LIGHT BUT THE FLAME DOES NOT GO HIGH ENOUGH FOR PROPER ...
A: The problem can be any of the items you mention, and can also be the gas pressure. Cleaning the ...
|
| heat pump | 10/16/2009 |
Q: my heat pump is trying to cut off while it is running . you can hear it clicking. it is while the ...
A: Something that is clicking can be several things. Since you do not know what is clicking and what ...
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| thermostat will not "talk" to air blower | 10/16/2009 |
Q: I have a 2 year old central ac (do not know model or brand), but thermostat is reading current temp ...
A: Only a very few thermostats "talk". Thermostats are dumb. All they do is open or close a switch, ...
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| Size of ducts to use with an airhandler | 10/15/2009 |
Q: My house was just renovated (including new insulation, new floor ducts, new air conditioner/heater ...
A: In order to me to determine if the unit is starved for air, I need to know how the unit is actually ...
|
| commercial ac unit | 10/15/2009 |
Q: the rooftop unit is not working because the thermostat is out. I changed the thermostat to a new one ...
A: Some digital t-stats require batteries for them to work. Next thing to check is to see that there ...
|
| tappan blinks twice | 10/15/2009 |
Q: Tappan gas furnace, 1 1/2 years old, pvc uptake vent, attempted to turn on for the first time this ...
A: There can only be two reasons for the problem. You are not moving enough air though the inducer fan ...
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| SUPPLY AND RETURN VENTS | 10/14/2009 |
Q: my first experience with an electric heat pump unit. Last nite i turned on the heat for the first ...
A: In some cases homes are ducted in such a way that it requires opening and closing ducts for heating ...
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| condensation | 10/14/2009 |
Q: Upon replacing the furnace, I noticed the condensation pipe running to a small hole in the basement ...
A: The water has to go somewhere, and it is possible it is ending up in the sump. You can use some ...
|
| Oil furnace thermostat | 10/13/2009 |
Q: My Hunter 7yr old digital thermostat, does not work correctly this season. It does not turn off oil ...
A: The furnace has an internal temp control that turns and off the fan based on the temp of the heat ...
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| Furnace starting fan but losing electricity | 10/12/2009 |
Q: Craig, We have an over 20 year old Carrier gas furnace, model #28RD036000. When the furnace is ...
A: The model number you have me is a good number, but it is only for the cooling coil. It does not do ...
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| humidity control in MN | 10/12/2009 |
Q: I am a new occupant in a relative new, but previously vacant patio home. The home does not currently ...
A: Heating the air will allow the air to hold more moisture, but you actually lower the RH%. RH% ...
|
| york furnace an | 10/12/2009 |
Q: I have a york 80 P3HUA08N04801A furnace. The circulator fan runs on low for few minutes then cuts ...
A: The problem is likely with the fan motor, run cap or both. Both a bad motor and bad run cap can ...
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| Condensation causing dry wall deterioration around ceiling air conditioner vents. | 10/11/2009 |
Q: We live in Florida and have vaulted ceilings in our home. There are a number of AC vents in the ...
A: My guess is the problem is actually occurring in the attic. My guess is the duct is not insulated ...
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| humidity control in MN | 10/10/2009 |
Q: I am a new occupant in a relative new, but previously vacant patio home. The home does not currently ...
A: As with the case with heating, most people humidify the air. The heat will lower the RH in the air. ...
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| "Open limit switch" | 10/10/2009 |
Q: I have a Coleman Evcon furnace. The motor and control board were both replaced last winter. I ...
A: There are all sorts of limit switches. Some of them are auto reset and some are manual reset. You ...
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| zoned system | 10/10/2009 |
Q: I have been told that in order to install new HVAC system (Amana split system, 16 SEER and 82% ...
A: The furnace has to move a certain amount of air to work. The bypass damper will all the right ...
|
| Heating Filters. | 10/9/2009 |
Q: I recently purchased the house and am trying to replace furnace filter prior to serious winter. ...
A: If you have searched the system good and found no filter, then you need to have the unit checked ...
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| Heating Filters. | 10/8/2009 |
Q: I recently purchased the house and am trying to replace furnace filter prior to serious winter. ...
A: The RCBA number does me no good. That is just the coil, and does not play a factor for the filter. ...
|
| old sears unit | 10/8/2009 |
Q: what is the tonnage of a old sears model 816221 serial 67632. about 45 yrs old. want to use it in ...
A: With the model number you have added with the age of the unit, I have no idea. There are other ...
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| Mortex blower | 10/7/2009 |
Q: My sister just bought a mobile home.The blower went out. She was charged over $700 for the repair. ...
A: There are many different types and styles of motors out there. I think from the searching I did, ...
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| Janitrol furnace wont start | 10/7/2009 |
Q: I have a 1990 Janitrol GU125-4 furnace, nat. gas upflow. This is a standing pilot system. The ...
A: You need to remove the thermostat as the problem. If you take the R (maybe the RH) W, you can see ...
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| Carrier Furnance Model 58PAV090-14 | 10/7/2009 |
Q: My brother-in-law has a carrier 58PAV090-14 furnace that cycles on. There is the 135s blower purge ...
A: Using the trusty multimeter, check for power at the gas sol. valve. If there is power, then it ...
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| Hvac Venting | 10/7/2009 |
Q: I have a modern gas heating system which runs out through a side wall. I am looking to get a new ...
A: Without knowing what unit you plan on using and what you have installed already, I can not determine ...
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| Daikin Inverter Air Con Compressor Burnout | 10/6/2009 |
Q: I have an FTXS series Daikin Inverter Room Air conditioner, with less than three months usage (but ...
A: If the screw did not damage the "cable", then it did not cause the compressor to burn up. If the ...
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| pressure switch | 10/5/2009 |
Q: my home is heat/cooled by an amana model # apg12360901a gas package unit. combustion air fan comes ...
A: The pressure switch serves a very important function. It determines the fan is on and moving the ...
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| Payne Heater Plus 80 | 10/5/2009 |
Q: Have Payne heater Flame and motor come on for about thirty seconds and then flame goes out and motor ...
A: The first thing I would check is the flame sensor. The verify the rest of the safeties from there. ...
|
| Trame XE 1000 Heat Pump | 10/5/2009 |
Q: Inside fan at first would try to kick off, but would kick right back on. Eventually it would not ...
A: If the board was wet, contact cleaner will not help. The water can cause a short in the board. The ...
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| Ruud Heat Pump | 10/5/2009 |
Q: The outdoor unit will run for @ 30 seconds and shut off for @ 1 min. and do it all over again, it ...
A: The first thing that comes to my mind is the low pressure switch. It is common when a system is low ...
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| Heat Pump Not Dehumidifing | 10/4/2009 |
Q: The following is a summary of questions remaining after 2 "best of phoenix" ac companies, with clean ...
A: 1. Any idea what would be the point of taking the txv bulb from inside the unit and placing it ...
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| Room stinks due to Centralized Aircon System | 10/4/2009 |
Q: just wondering if you could help me figure this problem out.... See the thing is, i just moved in a ...
A: Since there is one unit, you are going to smell the rest of the house. There is no way with the a/c ...
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| Payne Packaged Gas Ht/Elec Cool Problem | 10/4/2009 |
Q: I have a Payne PY1PNB036090AAAA Packaged Gas Ht/Elec Cool and I am getting an Induced Draft Motor ...
A: The fault can be due to several things. Induced fan not working, blockage in the flue, faulty ...
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| new high efficiency units | 10/3/2009 |
Q: I would like to replace my older (15 yr) unit with a high efficiency unit that qualifies for a tax ...
A: Most manufactures make and sell good units. Getting the best warranty, along with the best ...
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| No spark or opening pilot valve. | 10/2/2009 |
Q: I have an older Trane furnace that was put in in 1989. I have replaced the gas valve once and the ...
A: This does not control how hot the air leaving the unit will be. It only turns the fan on and off. ...
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| heil gas furnace | 10/2/2009 |
Q: I just moved into an old house that has a heil gas furnace in the basement. the model# is ...
A: The typical reason for the trip is no or poor air flow. Make sure the indoor main fan is running, ...
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| furnace/AC run at same time | 10/1/2009 |
Q: I bought a new house built by H&R with new furnace (Lennox) and new thermostat (Brand: Robertshaw ...
A: The first thing that came to mind is the thermostat is set up for a heatpump. A heatpump still runs ...
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| No heat | 10/1/2009 |
Q: I have an Olsen furnace Model-HAS.105^, Serial V-23452. I have brand new breakers, the pilot is on, ...
A: I am not sure what the blue knob is for. If the pilot is light, then the blue knob may turn the ...
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| furnace wont fire | 10/1/2009 |
Q: I used my ac about one month ago everything was fine - tried to start the furnace up - thermostat ...
A: It is possible it could be the thermostat, but they do not fail all that often. Checking all the ...
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| fumes from natural gas fired water bolier | 10/1/2009 |
Q: I live in a condo which has Weil McLain (Gold CGT) natural gas-fired water boilers with tankless ...
A: I am not sure about the cough, but the headaches can be a sign of carbon monoxide poisoning. You ...
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| No spark or opening pilot valve. | 9/30/2009 |
Q: I have an older Trane furnace that was put in in 1989. I have replaced the gas valve once and the ...
A: I am trying my best to follow, but I believe the problem is the limit. Whenever you read voltage ...
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| Wiring connection from HVAC to Thermostat & Outdoor Unit | 9/30/2009 |
Q: I replaced the blower wheel but didnt mark the wires. The wiring diagram is partly damaged and I ...
A: There are different varations for wiring coding with different units. Since I do not know the type ...
|
| heil gas furnace | 9/30/2009 |
Q: I just moved into an old house that has a heil gas furnace in the basement. the model# is ...
A: Without troubleshooting the furnace, it is hard to say what the problem is with it. It could be ...
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| air handler / dryer lint duct in crawl space | 9/29/2009 |
Q: Hey there We are looking to buy an old, but recently modernized house that has one of the air ...
A: The inside of the ducts and unit should not be exposed to the lint. There would have to be a breach ...
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| RE: Installing a new hunter thermo from an old carrier | 9/29/2009 |
Q: I didn't know if I could call customer support on this, but I just bought a Hunter set and save ...
A: The thermostat you have WILL NOT work for you. You have a heatpump with emergency heat (according ...
|
| Lennox ld24 gas duct furnace | 9/29/2009 |
Q: Got a Lennox ld24.300 Which just blew cold air the other day so turned it off. We have replaced the ...
A: Before you start replacing more parts, you need to diagnose the problem. The problem may not be the ...
|
| Trouble with new A/C | 9/28/2009 |
Q: I got a new airconditioner about a month ago. Since then, it doesn't work the way my previous (22 ...
A: The old unit you had, and the newer unit should blow about the same temp difference. The science is ...
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| How to close off vents in office ceiling | 9/28/2009 |
Q: My problem is that in my office, there are two vents above me that blast cold air for the duration ...
A: What tools are needed depend on what was installed. Some can be adjusted just using your fingers, ...
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| furnace problems | 9/28/2009 |
Q: I have a arcoair furnace 90+, and it works 4 min. then shut off the burner for a min. then starts ...
A: You are going to have to clean the unit with a brush and the vacuum. You need to be careful not to ...
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| Help with an AC | 9/27/2009 |
Q: Any suggestions on replacing my 22 year old carrier unit? It is a 4 ton unit. House is 2 story ...
A: I have done calculations in the past and have found that the higher SEER more expensive units take ...
|
| 5 star | 9/26/2009 |
Q: .i have 2 compressors and 2 furnaces here at home, and they are well over 12 years of age. now i am ...
A: From the way you are trying to do things, I am guessing you do not have a ton of money. For now you ...
|
| coleman ac unit | 9/26/2009 |
Q: I have a Coleman presidential 2 in my mobile home. Its got propane for heat and a ac unit. It was ...
A: You are right, normally the thermostat closes the switch and turn the unit on, although it is ...
|
| Gas furnace sizing | 9/25/2009 |
Q: I have a two story townhouse that is 1100sq ft. What size two stage furnace do I need. And what ...
A: The sq footage of a home is not enough to determine how much heating and cooling is needed. The ...
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| Home electricity generation from heat | 9/25/2009 |
Q: Is it possible to generate electricity from excess heat from the house? For example, would it be ...
A: I have never heard of the heat that is given off used to make power. The that is produced and be ...
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| Must/Dirt smells from AC/Heat Vents | 9/24/2009 |
Q: starting in September, our heating/Air vents emit a musty/dirt smelling odor during the evening ...
A: The inside of unit is moist, dark and cool. This makes for a good place for mold and mildew to ...
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| Condenser drain pan | 9/23/2009 |
Q: I was putting new sub floor in when I noticed water damage to the exsiting board. I found that the ...
A: Sometimes the drain pan can be fixed with some sort of putty, fiberglass, silicone, etc. The patch ...
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| Condenser fan motor replacement | 9/23/2009 |
Q: Found a motor compatible to old motor. It is an inch and a half deeper so fan will be sitting about ...
A: The blade needs to ride in the same plane at the one that came out. Some shrouds will allow for ...
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| A/C Evapoator blower | 9/23/2009 |
Q: My evaporator only runs for thirty sec. After t-stat. stops calling for it,(Rheem heat pump). My ...
A: Thirty seconds to a minute is all that is needed to remove any sort of heating or cooling left in ...
|
| room over garage | 9/22/2009 |
Q: Help please! I've recently bought a home that has a bedroom over the garage. The room is HOT in the ...
A: Since the room is hot/cold, then at this point you do not have enough air conditioning in the room. ...
|
| Condensation | 9/21/2009 |
Q: Upstairs AC unit. When it is clogged I POUR A MIXTURE OF water and bleach into the unit. The ...
A: Do you use a mixture, use straight bleach. If the line is too plugged up, bleach will not work. ...
|
| Tempstar Condenser Fan motor replacement | 9/21/2009 |
Q: Craig, Our fan motor has stopped and service guy says to replace motor and fan blade. He quoted $640 ...
A: It is not the hardest thing to do, but if done wrong, you can really make things worse. You need ...
|
| trane heating and ac will not turn on | 9/21/2009 |
Q: I have a trane heating unit that is about 10 years old that will not turn on. My air conditioning ...
A: My guess is there is some sort of electrical problem in the furnace, since nothing is working. At ...
|
| shutting off ac/heat unit | 9/20/2009 |
Q: We have a separate unit for our upstairs. My husband has shut it off after our daughter moved out. ...
A: There is always a concern of mold in unconditioned spaces. You can use a humidistat to control the ...
|
| New AC unit not cooling properly | 9/20/2009 |
Q: I have a 1350 square feet rental home. I had a 15 year old Bryant 2 ton ac unit, which kept the ...
A: With the info you passed along to me, I can not determine what might be wrong. It takes an entire ...
|
| duct woes | 9/20/2009 |
Q: trying to pick up where someone else left off! he built 1/2 the home, now I am trying to figure out ...
A: I can not tell how big the returns need to be. I do not know how much air will be moving into the ...
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| cooling problem | 9/19/2009 |
Q: my hvac scontractor installed a new compressor in my 5yr old unit trying to correct my problem of ...
A: There should be about a 15-20F difference, not 8-9F. The cause of that can be one or more of ...
|
| Rheem Corsair a/c 2.5 ton | 9/19/2009 |
Q: The fan motor above the condenser was replaced in early July along with a new capacitor. They used a ...
A: The motor did not cause the jump in power bills. I am not sure if you are looking at the price you ...
|
| defrost board problem | 9/18/2009 |
Q: I have a 3-ton Rheem pne heat pump system. The outside cabinet is shutting off while the air ...
A: The five minute delay is there to protect the compressor from short cycling. Some digital ...
|
| Lennox G8 | 9/18/2009 |
Q: I have an old Lennox G8 (What the front says) which is making some noise. Every time the fan ...
A: There is no need to replace the entire unit if the only thing bad is the fan motor. There could be ...
|
| Refrigerant pressure-temperature charts | 9/18/2009 |
Q: When viewing a refrigerant pressure/temperature chart, what does the temperature refer to, i.e., ...
A: When we have a can that is unmarked, we can guess the temp close to the air temp. If it could be ...
|
| Refrigerant pressure-temperature charts | 9/17/2009 |
Q: When viewing a refrigerant pressure/temperature chart, what does the temperature refer to, i.e., ...
A: The chart is based off the refrigerant sitting in the can not moving. If the refrigerant in the can ...
|
| amaerican standard | 9/17/2009 |
Q: How do I find what the model numbers on american standard stand for? Is there a web site? I cannot ...
A: The instruction manual is the place it will be. There might be one inside the unit. You will not ...
|
| heat pump odor | 9/16/2009 |
Q: We have a 25-30 year old heat pump. Our air handler is in the attic. About 2 months ago we had to ...
A: If the problem is not in the air handler, then it would appear the odor is in the ducts. The ducts ...
|
| Trane XR90 problem | 9/16/2009 |
Q: I have 4 year old trane XR90. When I try to turn on it. I hear electrical noise and no air blow out. ...
A: The pressure switch is what tells the control board the inducer fan is running and air is flowing. ...
|
| AC leak/blockage? | 9/16/2009 |
Q: My central AC unit sits in my garage and lately I have been getting some water inside a closet in my ...
A: The drain line is safe to pour bleach down. It should also be ok to use a hose and push the crap ...
|
| AC leak/blockage? | 9/15/2009 |
Q: My central AC unit sits in my garage and lately I have been getting some water inside a closet in my ...
A: Any of the things you mentioned might work. Consider some bleach, or using a garden hose to flush ...
|
| Tapping into a trunk line | 9/15/2009 |
Q: When tapping into a trunk line, is there any reason not to tap into the bottom of the duct - it's ...
A: If that is your only option, then go ahead. The side gives a way to give more support from above. ...
|
| air blowing from return | 9/4/2009 |
Q: I have a 3 zone system. Zones 1 and 2 are down stairs and seem to be working fine. Zone 3 is ...
A: To start with, there is no way supply air will come out of the return. In some rare cases, there ...
|
| 5-year old split sys A/C with Aluminum wiring starting to trip CB periodically | 9/3/2009 |
Q: I have a 5-year old Carrier split system (condenser model 38TZA060 - 331)that has been working fine ...
A: There are a couple of things to check into. Loose electrical connections will cause an increase in ...
|
| HVAC sound insulation | 9/3/2009 |
Q: Is there a way to reduce the sound coming from an a/c unit that belongs to the house next to me. We ...
A: If the noise is air, then there is nothing you can do. If the noise is from the compressor, a ...
|
| air conditioning recommendation | 9/3/2009 |
Q: We currently have a Freus that we purchased 4 years ago. It has been nothing but trouble from the ...
A: I have never heard of a Freus. I looked it up and it seems like a bit over done for all its worth. ...
|
| difference between air -con grille & diffuser | 9/2/2009 |
Q: I would like to know the difference between ac grille & diffuser. how do i know when & where to use ...
A: A diffuser is actually a type of grille. A grille is normally on a return and a register is on a ...
|
| 77 Cavco mobilehm (upgraded a/c&heat) | 9/2/2009 |
Q: I live in a mobilehome rental in AZ. Management/maintenance not experienced...I've only lived in ...
A: The unit functions the same way any home unit works. Your home appears to have the supply through ...
|
| Installing a new A/C duct | 9/1/2009 |
Q: I just did an Add on it’s a 13X25 room. There is a set of French doors that face south (Not covered) ...
A: First things first, is the existing unit big enough to handle the extra load you are going require ...
|
| AC Condensate Drain | 9/1/2009 |
Q: I have a two year old rooftop Package Unit, 5 ton Carrier 48XP, and a 3/4" PVC drain pipe (with a ...
A: The more moisture in the air, the more moisture that is going to come out of the unit. The trap is ...
|
| AC Condensate Drain | 8/31/2009 |
Q: I have a two year old rooftop Package Unit, 5 ton Carrier 48XP, and a 3/4" PVC drain pipe (with a ...
A: Does the unit seem to be maintaining the temp in the home? Normally if a unit is not producing ...
|
| Boiler Asbestos | 8/30/2009 |
Q: I work for an HVAC company in western Massachusetts and recently had to remove an old (at least ...
A: It was very common back in those days, so it is quite possible it was asbestos. Whenever I seen ...
|
| ducts replacement | 8/28/2009 |
Q: I need to have the duct work replaced in my home. Do you recommend metal or flex ducts. The one's I ...
A: If I had the money I would install metal ducts. Metal is much more expensive, but I feel it is much ...
|
| AC continuous run time | 8/28/2009 |
Q: We recently bought a new Rheem furnace. Since it was installed, our (same old) AC unit has ...
A: From reading this, I am gathering the only thing changed was the furnace. The evap coil and ...
|
| a/c | 8/28/2009 |
Q: All my vents are sweating and the cabinets under the sink are moist and damp. The house has good air ...
A: I would be looking for a plumbing leak under the cabinets to start with. The sweating vents is a ...
|
| Rheem Scroll Compressor Stopped Working After Wiring Incorrectly | 8/27/2009 |
Q: I have a Rheem Scroll compressor unit outside and had wiring issues after a rain the other night. A ...
A: Miswiring a unit can lead to all sorts of problems. Not any of which are any good, and normally ...
|
| Registers in Return Air Plenum | 8/27/2009 |
Q: Is it ok (and generally to code) to install a return air register in an electric furnace/AC return ...
A: As long as the filter is in the unit or you install a filter back grille, that should be fine. Not ...
|
| air condition | 8/26/2009 |
Q: my unit is blowing air but it is not cold. what could I check before I call someone to come out.
A: If you have a split system, check to see if the breaker(s) are tripped. Since there is air flow, ...
|
| central air | 8/26/2009 |
Q: Water accumalates around coils and runs out drain pipe to outside. Starting to drip into main ...
A: You probably need to clean out the drain line. There might be some water coming out, but that does ...
|
| New A/C not as cool | 8/25/2009 |
Q: I just replaced a 20 year old Trane A/C with a new XR-15 Trane. The installers also replaced the ...
A: The body feels a change in humidity before it feels temp. I would bet the unit is not removing ...
|
| central air | 8/25/2009 |
Q: the part of the ac above my furnace is leaking a fair amount of water. i think it may be the pump is ...
A: If you have a condensate pump, then maybe the pump is bad. Most units do not have a pump, rather ...
|
| WATER IN THE DRIP PAN | 8/24/2009 |
Q: I'm starting to get a substantial amount of water in the drip pan below the unit in the attic. It ...
A: Ice can be a cause for the water dripping. Ice means there is a problem. If changing the filters ...
|
| Fridge Question | 8/24/2009 |
Q: I was moving my 2 year old fridge & while maneuvering it I tipped it sideways on about a 30 degree ...
A: I do not work on appliance as a rule, but there is a pan to collect condensate. The hot gas from ...
|
| R-410a system with old R-22 lines | 8/24/2009 |
Q: I'am about to upgrade my old R-22 3 ton AC system to a new system that uses R-410a refrigerant. Will ...
A: The issue with the copper lines is the oil, not the copper. The oil from an R-22 system can cause ...
|
| residential AC compressor | 8/24/2009 |
Q: I have a 5 year old 2800 sq. ft. house with central air. There are two compressor units outside (10 ...
A: The cost of power has gone up over the past couple of years. You need to check to see if the amount ...
|
| hvac | 8/23/2009 |
Q: my husband and i are have a problem with our ac unit keeping the house to the set temperature of 75 ...
A: The problem can be one of many. There are limits to how cold a unit will get with the outdoor temp. ...
|
| HVAC Cosaire Rheem not poweing | 8/23/2009 |
Q: I turned on my ac unit and the unit (outside) does not come on. I suspect it might be the fuses. I ...
A: The problem can be anything number of electrical devices in the units. Changing out the fuse may ...
|
| replacement HVAC system | 8/23/2009 |
Q: We are replacing our 15 year old split A/C and gas furnace as the E coil is leaking Freon and cannot ...
A: Wow, that was a long read. With all that is said and done, I would go with the size of units the ...
|
| Fog/Mist filling our house from HVAC | 8/22/2009 |
Q: We live in Louisiana. Last week our system stopped working. We had a repairman come in and advised ...
A: Funny, I just had someone else ask me the same thing....here is the post. My guess is the fog is ...
|
| ac unit knocking | 8/22/2009 |
Q: I have an outside central ac unit. Just recently, I turned on the ac and I began hearing a knocking ...
A: I am not sure what is causing the knocking noise, but it should be a concern if there is no air ...
|
| First Co. Air Handler leaking when running as A/C | 8/22/2009 |
Q: It appears that my First Co. air handler is leaking all over my bsmt floor. After reading many of ...
A: There has to be a drain line. Then end has to some somewhere. It might be a matter of cutting the ...
|
| Intertherm A/C Leaking | 8/22/2009 |
Q: We have an Intertherm A/C and heat pump in a double wide mobile home. The inside unit is leaking ...
A: The problem can be one of a few issues. A cracked or rusted though drain pan, improper pitch on the ...
|
| 800 sq ft. home rancher | 8/21/2009 |
Q: i have a very small summer home in nj, we only used it in the summer so it's been fine now,that my ...
A: Units come in many sizes and many forms. They range from window units to split systems. ...
|
| Reason of Compressor failure | 8/21/2009 |
Q: What are the most common reasons of compressor failure in HVAC system.How Blockage of Capillary and ...
A: Compressors fail both for elect. and mech. reasons. Most of the time, with newer compressors, it ...
|
| strange odorless fog coming out of A/C | 8/21/2009 |
Q: My husband and I this morning noticed a bizzare fog in our home in every room, we turned off the ...
A: My guess is the fog is water vapor and harmless. I have never seen fog fill a home or business ...
|
| Options for new heat pump system | 8/20/2009 |
Q: I am looking to replace my heat pump system and interviewing contractors. 1)Would you recommend ...
A: Adding a humidifier does what is needs to do, when sized and installed correctly. If the humidity ...
|
| Separating one zone a/c into two | 8/19/2009 |
Q: I have a 3000sq ft home in the Northeast, two floors built in 1994. The A/C system has never ...
A: A split level home of your size would be better off with two units rather then one. Granted there ...
|
| Air Conditioner not cooling properly. | 8/19/2009 |
Q: I bought the air conditioner in my living room in 2006. It is 10,000 BTUs. It is not cooling as ...
A: As small as the unit is, they are not worth fixing unless under warranty. Normally you can buy a ...
|
| capacitor's | 8/19/2009 |
Q: can you use a two terminal capacitor. with a three terminal cap. when the common terminal is ...
A: A three post run cap is actually two run caps in one metal can. One post is common, one is for the ...
|
| a/c foul smell | 8/19/2009 |
Q: When the air blows a foul smell occurs like rotten eggs or dead rat? There is evidence of a rat in ...
A: If the smell is not a musty, dirty sock smell, then it very well could be a dead critter. To me, ...
|
| a/c | 8/18/2009 |
Q: i have payne a/c units both units compressed does not kick in.the units inside come on but no cold ...
A: The problem can be any of the named and more. The only thing to do at this point is to use a meter ...
|
| New Electric Furnace and Air Conditioner Installed | 8/17/2009 |
Q: I live in a 20-year old, 3 story 1300 sq. ft. condo in Cincinnati, OH. (It has a walk-out basement, ...
A: I can not tell you if you need more return. I do not know the lay out of the home nor the size of ...
|
| HVAC blower rotation | 8/17/2009 |
Q: My Carrier 5T home Heatpump/AC had the sounds of the blower/air handler change this evening. In ...
A: The motor should not run backwards for any reason. If the motor is running backwards, then ...
|
| AC motherboard | 8/17/2009 |
Q: our air stopped working suddenly - we had someone in who said we need a new motherboard an also need ...
A: I have never heard of "draining the motor". If there is water in the motor, the motor should be ...
|
| new equipment quotes | 8/15/2009 |
Q: I have 2 quotes for HVAC equipment. One quote includes new copper piping and the other quote ...
A: Seeing how I do not know what sort of equipment they are using does not help me here. I am not sure ...
|
| central air | 8/14/2009 |
Q: we are living in our current house for 2 years. we have a carrier 3 ton split unit that is probably ...
A: Mechanics have a good sense when it comes to issues with units. We do not always need to use a ...
|
| heat pump | 8/14/2009 |
Q: I have approx. 2200sq. feet home and a 3 ton heat pump, is 3 ton large enough for my home? If not ...
A: A three ton unit seems to be a bit undersized. Since I can not do a heat load calculation I can not ...
|
| condenser noise | 8/14/2009 |
Q: Our a/c condenser makes a kind of honking/squawking noise when it turns off. ANSWER: Is the unit a ...
A: If it were a heatpump, that might explain things. I am not sure what the noise could be. It may ...
|
| water leaking into drip pan | 8/14/2009 |
Q: Got a 1995 Carrier unit in a 1800 sq. ft 2 story house, it is in the attic. Water leaking into drip ...
A: The first thing you need to due to is clean out the main drain line. You can use a wet vac, water ...
|
| Freon charge | 8/13/2009 |
Q: How much freon does a typical commercial unit hold? For example, a 20 ton unit will hold how many ...
A: There is such a broad range of refrigerant charges. There are too many factors to really determine ...
|
| HVAC maintenance | 8/13/2009 |
Q: Do I need a contractors license to do preventative maintenance on HVAC?
A: Different areas required different licenses. The rules are always changing. It may also come down ...
|
| Compressor size | 8/12/2009 |
Q: I have a 10yr old 3ton seer 12 a/c unit. My house is 1500 sqr ft. and I live in deep south TX where ...
A: No, for two reasons. You can not use a 5 ton cond. unit with a 3 ton air handler. I would also ...
|
| air handler | 8/12/2009 |
Q: my air handler fan goes off and the line freezes.. I shut the air off and I wait a few minutes and ...
A: You need to verify the thermostat is actually calling for cool. I have seen many cases where the ...
|
| type of door for the AC closet | 8/11/2009 |
Q: MY ac sets out side and the heater is inside of my washer dryer closet which is located in the ...
A: If the return air flow is though the doors, then yes it can create a problem. It is the same as you ...
|
| inside unit freeze | 8/11/2009 |
Q: my inside unit kept freezing over occasionally. if i leave the fan set to on, it does not freeze ...
A: Without getting the operational readings, I can not tell you why it is freezing up. I can tell you ...
|
| hvac blower maybe motor | 8/11/2009 |
Q: I have a hvac system with a blower that when turned on produces lots of noise, the noise is not so ...
A: It is normal to have some movement in the shaft. I can tell you if the noise or movement is good or ...
|
| Attic Furnace | 8/10/2009 |
Q: I have an attic furnace and water coming out of my emergency overflow pan. I checked the regular ...
A: When water is blown off of the coil, it is caused by high air velocity. I see this problem when ...
|
| what is average time for central air to cool given the following info | 8/10/2009 |
Q: I have a central air system that is 15+ years old. It seems to take a very long time to cool the ...
A: With the outdoor air temp at 70, one hour for one degree is a long time. With the unit at 15 years ...
|
| Can you recommend an a/c book ? | 8/9/2009 |
Q: First I thank you for saying, "I'd have to see your a/c unit to see why the ceiling leaks ABOVE the ...
A: Turning down a thermostat too low can cause the unit to freeze up, if the temp actually gets too ...
|
| very noisy central air conditioner system | 8/9/2009 |
Q: First, thanks in advance for taking time to answer my questions. I have a 15+ year old AMANA central ...
A: Gibson is made by Nordyne. I have not heard or had any sort of issues with them. They make a good ...
|
| Condensing unit mismatched with blower size | 8/9/2009 |
Q: Good Morning. I have a 2300 sq ft manufactured home. We purchased it used and discovered that the ...
A: From what I have found, the furnace you have is only rated for 3 tons. It is not going to work with ...
|
| air handler leaking, frequent on/off | 8/9/2009 |
Q: We have a York Diamond 80 air handler, installed around 2000, in the basement of our townhome. ...
A: It sounds to me the drain line is backed up and need to be flushed out. You can use a wet vac, air ...
|
| NEW AC AND HUMIDITY LEVEL | 8/8/2009 |
Q: Per recommendations from my HVAC company, I recently had my heat pump replaced with a 3-ton 15-seer ...
A: Equal on/ off times is good, but 10 mins just does not seem long enough to dehumidify. I would think ...
|
| Dehumidifier - whole house or standalone? | 8/8/2009 |
Q: I posted another question related to this. If my humidity level is very high in my house, do I ...
A: If the a/ac unit is designed, installed and working properly, then a dehumidifier it not required. ...
|
| NEW AC AND HUMIDITY LEVEL | 8/8/2009 |
Q: Per recommendations from my HVAC company, I recently had my heat pump replaced with a 3-ton 15-seer ...
A: What is the temp of the inside of the house? The indoor temp plays a role in the humidity levels. ...
|
| contactor | 8/7/2009 |
Q: I have a rheem ramb0365jbz unit that the comtactor has gone out on. I want to replace it myself but ...
A: The contactor can be purchased on the internet or at any local hvac or motor supply house. You do ...
|
| installation code violation | 8/7/2009 |
Q: It appears that the installation of the refrigeration lines from the condenser to the air handler ...
A: If the nails went into the copper, you are going to have leaks. The unit will not run long in that ...
|
| sweating coils | 8/7/2009 |
Q: I have had the drains flushed out, and still I am getting so much water that the pan fills up and ...
A: The drain line needs to have proper pitch for water to drain. The drain may also need a trap. You ...
|
| heat in the summer? | 8/6/2009 |
Q: . I just recently had and Central Air Conditioning installed in my home and my setting is set to 24 ...
A: Some thermostats have an auto changeover. The changeover will turn on the heat or cooling to keep ...
|
| air conditioner | 8/6/2009 |
Q: My air conditioner is not working. I don't know how old it is but it is BDP Company and the model ...
A: The BDP brand, and your model number dates back to the 70's. It is a Carrier company. There may or ...
|
| home a/c condensing unit | 8/6/2009 |
Q: Just last week rechrged the system with 4 +lbs r22. all fine for 2 days with pressure around 60 from ...
A: You actually charge using both, at various stages of charging. Some refrigerants require that ...
|
| rheem classic XIV air handler | 8/6/2009 |
Q: model RBHK24J06FF IS A VARIABLE Speed AIR HANDLER AND IS IT A 14 SEER UNIT? Second question out side ...
A: The air handlers themselves do not have SEER ratings, the cond. units do. They combine the air ...
|
| home a/c condensing unit | 8/5/2009 |
Q: Just last week rechrged the system with 4 +lbs r22. all fine for 2 days with pressure around 60 from ...
A: Evacuating the system is not going to solve the problem. There needs to be a completely clear ...
|
| Blower cfm | 8/5/2009 |
Q: I have a blower from a 9 yr old furnace. It is Emerson, motor is 3/4 hp, squirrel cage is about 12 ...
A: The issues with blower wheels is they are rated for cfms at a given static pressure. A 5 ton air ...
|
| Heat Pump Repair | 8/4/2009 |
Q: My split system heat pump is not functioning. The HVAC repair person thinks the problem is the ...
A: Well, when pulling permits, there is a difference in upgrading and changing out. I believe that if ...
|
| high humidity in house | 8/4/2009 |
Q: Have lived here 17 yrs. Never had a problem with inside humidity. How have 70-85 humidity. Have ...
A: If the person you are using needs to know what the measurements are, then they need to be not ...
|
| home a/c condensing unit | 8/4/2009 |
Q: Just last week rechrged the system with 4 +lbs r22. all fine for 2 days with pressure around 60 from ...
A: The 60 suction is to low, and there is no way the unit would have been working with only a 75 psi on ...
|
| Need new HVAC system | 8/4/2009 |
Q: I live on the Texas coast and need a new HVAC system. Coils on my last Amana corroded out in 4 ...
A: I do not know if one is better then the other as far as the coils go. There are some options, but I ...
|
| high humidity in house | 8/3/2009 |
Q: Have lived here 17 yrs. Never had a problem with inside humidity. How have 70-85 humidity. Have ...
A: At this point I can not say why you are having problems. I was thinking you have new units, which ...
|
| It's NOT homework. | 8/3/2009 |
Q: I need to know if my 1-year renewable contract for repair is fair. (I'm sorry I conveyed impression ...
A: Refrigerant recovery is required, by law, when the system has to be opened for repairs. This would ...
|
| Liebert A/C unit | 8/3/2009 |
Q: No cooling. 2 cast iron compressors. 1 Condensing fan/coil 1 Compressor not working Shorted to ...
A: The compressor has bad valves or internal bypass. It might even be a case of hot gas bypass open ...
|
| heat pump | 8/3/2009 |
Q: I have been using the AC when it runs for about 1 hour it switches to heat. The system switches on ...
A: The problem can actually be with any of the above mentioned. Since you have a heatpump, the ...
|
| Home a/c | 8/2/2009 |
Q: I have a 2.5 ton a/c unit for my home that probably needs to be recharged. I have the correct ...
A: If you did not find any leaks and unit is not icing up, then either the unit is out of gas or does ...
|
| A/C Breaker Keep Tripping | 8/2/2009 |
Q: We have a 5 ton Day & Night split system on an 1100 sq. ft. house. We have #8 wire from the service ...
A: Looking inside the control panel of the condensing unit will tell if there is a kit installed. ...
|
| Moisture in Coils | 8/2/2009 |
Q: My Ruud URMA-A042JK10E AC unit stopped blowing cold air. Turned out two attached coils came lose ...
A: I am not sure what you mean by coils. I have found though the years, this is an issue Rheem/Ruud ...
|
| Home a/c | 8/2/2009 |
Q: I have a 2.5 ton a/c unit for my home that probably needs to be recharged. I have the correct ...
A: If the unit is a standard Split or package unit, R-134a is not going to work. If put the R-134a in ...
|
| HVAC Capacities | 8/1/2009 |
Q: I am replacing two OLD two stage A/C and Gas Furnace systems. Old systems have 3.5 ton Copeland ...
A: Manufactures has line sizing charts for the units to work properly. I can tell you the existing ...
|
| A/C Breaker Keep Tripping | 8/1/2009 |
Q: We have a 5 ton Day & Night split system on an 1100 sq. ft. house. We have #8 wire from the service ...
A: Sounds to me the compressor needs a start kit installed. I would use the start kit before changing ...
|
| Heat on in the Summer? | 8/1/2009 |
Q: I live in a condo, with common areas for dining, activities, etc. Each apartment has its own ...
A: Using heat has its place when cooling. It is used to aid in the controlling of humidity. Normally, ...
|
| Strange Smell from registers | 8/1/2009 |
Q: My house was built in 1929 and all the heat registers are flat in the floor (12" x 10"?). The ...
A: Since I am unable to smell the odor, I can not tell you what the odor is. As with anything new, it ...
|
| Air conditioner | 7/31/2009 |
Q: The air conditioner outside works but the furnace fan is not blowing the air into the house. The ...
A: Turning off the power to the unit should not have played a part in the fan not working. The problem ...
|
| Air Conditioning unit | 7/30/2009 |
Q: As a cost reduction method our company practicing to switch off our central Air Conditioning system ...
A: Humidity control is a big issue. The humidity will be out of control with this practice. Not all ...
|
| New Trane system poorly cooling | 7/30/2009 |
Q: Had a brand new Trane 4 ton system with air handler installed in my home 2 weeks ago. For the past 2 ...
A: Without know how the unit is running with some readings, it is not possible to have a clue to what ...
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| Lennox 90+ furnaces | 7/29/2009 |
Q: The new Lennox G51 and G61 series condensing furnaces are now coming with a warning label on the ...
A: My guess is Lennox has had issues with too cold of air entering the unit. The problem could have ...
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| Heat Pump Repair | 7/29/2009 |
Q: My split system heat pump is not functioning. The HVAC repair person thinks the problem is the ...
A: There is no such law in Florida, that I know of. The feds. have set most of the mandates and ...
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| Lennox CH22-65-TXV-1 | 7/29/2009 |
Q: This unit was installed in 1995. The inside fan will only come on after resetting the breakers on ...
A: Sounds like you have a bad evap fan motor, run cap or both. If the run cap to the motor is bad or ...
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| 16 Seer A/C VS. 10 Seer and Cost Savings | 7/29/2009 |
Q: I need to replace my A/C and trying to figure out the cost/benefit. Is it worth gettting a 16 Seer ...
A: To start off with, there are no more 10 SEER units sold new. They are now at least 13 SEER. A new ...
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| Trane insufficient air flow | 7/28/2009 |
Q: I have a Trane A/c unit and a Rheema Criterion gas furnance. Yesterday, i noticed that the house was ...
A: Having cold wet pipes is a good thing. There could be an air flow issue, there could also be other ...
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| HVAC-attic air handler - Trane | 7/27/2009 |
Q: Sir: I had an additional room & bath built in a portion of my attic which required the relocation of ...
A: It is a common issue, but a not a good thing. Having the unit in the attic is one of the worse ...
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| New Bryant units bad install | 7/27/2009 |
Q: I manage a new apt. complex we are energy efficient. We have Bryant Heating and cooling. Legacy . We ...
A: The best place for a drier is next to the TXV. A heatpump will actually have two txv's or metering ...
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| "Emergency Heat" | 7/26/2009 |
Q: I had a home inspection last week and the inspector said that the emergency heat did not work. It ...
A: If the thermostat was able to call for emer. heat, then is should have come on. It is hard to say ...
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| Rudd ac unit | 7/26/2009 |
Q: Honeywell FocusPro 5000 set at 70deg. and inside temp. got up to 84deg. yesterday. Fan outside just ...
A: You likely have a bad fan motor, run cap, or both. Do not run the unit until you get the problem ...
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| thermostat | 7/26/2009 |
Q: I noticed that I did not have power to my thermostat. I thought it had gone bad so I replaced it. I ...
A: There can be a few reasons for the lack of power. You are going to have to use a meter and track ...
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| thermostat wiring | 7/26/2009 |
Q: I'm trying to wire a Total Touch Thermostat to a Payne model PA13NR024 and having trouble figuring ...
A: Here is a link for the wiring... http://www.totaltouch.info/documents/TT_wiring.pdf With the ...
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| Rheem Class 10 Seer Heat Pump AC Unit | 7/24/2009 |
Q: My girlfriend has a Rheem Class 10 Seer Heat Pump Model No. RPKA-025 JAZ Serial No. 6388 M1700 ...
A: You might get away with just changing the run cap. The run cap is in the control section of the ...
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| Thermostat placement | 7/23/2009 |
Q: We have just recently moved into a 3000 ft. house, we have two AC units. One thermostat is down at ...
A: Moving the computers is not going to make that much of a difference. It does not matter where they ...
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| removimg a gas furnace | 7/23/2009 |
Q: I need to remove a furnace and cap off a gas line in order to have a heat pump/air conditioning unit ...
A: The problem you may run into is closing the gas valve(s). Old valves that have not been moved, may ...
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| a/c | 7/23/2009 |
Q: we recently replaced the condener unit outside (last year)and everything was running fine. well the ...
A: The problem can be a low refrigerant charge and/or poor air flow. The air flow can be due to dirty ...
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| Blower motor won't come on sometimes | 7/22/2009 |
Q: I have a Amana Air Command heat pump that is 20 years old. When fan on thermostat is set to auto the ...
A: Not all units are wired the same way. They can vary on the control sequence. I the air handler doe ...
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| A/C freezes up | 7/22/2009 |
Q: We have a Unico system ( the air handler & evaporator are in the attic) with a Trane ...
A: A loss in refrigerant will cause both a loss in cooling, and can also cause the coil to freeze up. ...
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| Residential A/C Unit Problem | 7/22/2009 |
Q: We notice the temp raising to 78 when it was set at 76. Checked everything and what is occurring is ...
A: The issue with the fan motor sounds like a bad run cap. Replacing the run cap might solve the ...
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| HVAC Unit that thumps | 7/22/2009 |
Q: We live in a 1000 sq ft condo which has an HVAC unit. The airconditioner is outside...the HVAC unit ...
A: Units make noise. Most of the time an intermittent noise is nothing to really worry about. Like us ...
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| AC contactor problem | 7/21/2009 |
Q: I have a problem with my condenser on my central AC. I will describe what I have done in detail and ...
A: Since you are not using the cooling stat for heat, then you need three wires to the thermostat. The ...
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| Airflow | 7/21/2009 |
Q: MY question is about airflow. I have a 2400 sq ft home with a 2 gsh13 heat pumps. One is 2 1/2 ton ...
A: The size of the ducts coming off the air handler is just not enough to figure out what is wrong. ...
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| A/C problem | 7/21/2009 |
Q: One of our 8 year old Lennox units is cycling on, turning of for a quick second and turning right ...
A: Does the problem stop if you cycle the breaker for the unit off then back on? You might be able to ...
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| A/C Handler | 7/21/2009 |
Q: Our A/C handler won't shut off when the temperature reaches the set temperature on the digital ...
A: There is nothing wrong with the stat. What you do not see is tenths. They do not work all the ...
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| a/c compressor | 7/20/2009 |
Q: What is the function of the compressor? Will using a filter like a 3M 1250 Ultra Allergen in a ...
A: The compressor is the heart of the unit. Much like the heart that moves blood, the compressor moves ...
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| 10 ton carrier rooftop unit breaker problem | 7/20/2009 |
Q: we have a 10 ton carrier unit on rooftop the 70 amp breaker keeps popping, we checked the roof and ...
A: First of all, do not reset the breaker again! You can actually cause more damage and expense. ...
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| Trane XE 80 | 7/19/2009 |
Q: Blower Motor runs continuously. (The only way to shut it down is to trun off the Furnace at the ...
A: Trane does not offer their manuals on the net. You might find one on a different site or by ...
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| new ac | 7/19/2009 |
Q: we just had a new whirlpool 13 seer 2.5 ton ac unit and air handler installed in our 1250 sq ft ...
A: The clicking noise is normal. It is normal for a unit to take time to cool the air down. When we ...
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| New vibration in air handler | 7/19/2009 |
Q: I have an attic mounted gas and AC unit. Today I noticed a vibration like sound in the ceiling ...
A: Something with the blower has come loose. Some blowers have balancing weights which can get thrown ...
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| HVAC airflow | 7/18/2009 |
Q: We just replaced the cooling coil in our HVAC unit. The air flow seemed to be fine, it's just that ...
A: The price to go from a 2 ton to a 4 ton is going to be a bit more then you might be thinking. Keep ...
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| Trane Central Air fan motor & capacitor | 7/18/2009 |
Q: I have a Trane XE1000. I have replaced the fan motor and capacitor. The problem is that the old ...
A: The new fan has four wires. The two (brown?) wires go to the new cap and the other two go on the ...
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| Goodman A/C unit does not shut off | 7/18/2009 |
Q: I just had a new Goodman 5ton heat pump a/c unit installed. The unit works fine for about 3 weeks ...
A: The problem might be the control board. Trying cycling the breaker and see if it will shut off. It ...
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| Poor airflow from central ac vents | 7/18/2009 |
Q: forgive me I know almost nothing about a/c units, but I will give you all the info I have. Our home ...
A: There are is a list of reasons for a unit to have poor air flow. Dirty coils and filters top the ...
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| AC not removing humdity | 7/17/2009 |
Q: John, I have a 20 year old Trane AC unit which recently had 3lbs of freon added. After that for ...
A: It is possible the unit is now over charged with the addition of the refrigerant. The over charging ...
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| HVAC airflow | 7/17/2009 |
Q: We just replaced the cooling coil in our HVAC unit. The air flow seemed to be fine, it's just that ...
A: A 3400 sq ft home is going to need around 7 tons of cooling. Georgia is a very hot state. I know, ...
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| AC not cooling | 7/17/2009 |
Q: Ok I live in an apartment that is quite old. My ac unit has not been cooling right since we moved in ...
A: Clearly the people that are working on your a/c know very little about it. Even a unit that ...
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| air conditioning | 7/16/2009 |
Q: I live in a condo with 30 foot ceilings ( a loft) and my a/c runs all the time....my electric bill ...
A: Each system when installed is designed to maintain a certain temp.. In some cases, it might be 95 ...
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| Condistation in Air Ducts | 7/16/2009 |
Q: What would cause condistation in the air ducts? How do you get it out of there when there is alot of ...
A: That is a very common problem with the ducts under the house. It is a nice moist area. At this ...
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| follow up | 7/16/2009 |
Q: how to i change the damper or air flow on a carrier unit model #FB4ANF030...i've looked through all ...
A: You need a damper installed in the main trunk where the ducts split to go up and down. You might ...
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| insulation in hvac unit | 7/16/2009 |
Q: my hvac in my house is @ 7 yrs old. Bryant. The foil-lined insulation behind the removeable panel ...
A: You can buy foil backed fiberglass insulation or you can use a rubber type of insulation that comes ...
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| change the damper | 7/15/2009 |
Q: how to i change the damper or air flow on a carrier unit model #FB4ANF030...i've looked through all ...
A: There is no damper, unless it was installed after it left the factory. The attached link has the ...
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| Ruud Quiet 80 Water Drain | 7/15/2009 |
Q: I have a Ruud Quiet 80 that is 4 years old installed in my attic. Since the beginning of the summer ...
A: To start off with, it is normal and expected to have 5-10 gallons of water per day come from the ...
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| air flow | 7/15/2009 |
Q: 3rd yr in a row my hvac runs all day til evening, then sweats & leaks under coil & sometimes after ...
A: When I starting to think about this, my thought was the unit is too big. You mentioned the unit was ...
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| ac | 7/14/2009 |
Q: what would be the operating pressures of a janitrol 4.5 ton ac about 12 years old w/outside temps in ...
A: Adjusting the pressure alone is not going to solve a problem. In order to know if the unit is ...
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| Compressor Dont Turn Back On | 7/14/2009 |
Q: I have asked this question before got a answer but still not working. Question I have three trane ...
A: With the fan running, to me is seems the compressor is overheating. When the power dips (brown ...
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| Bryant central unit | 7/13/2009 |
Q: The unit has been running for some time now and is not putting out any cool air at all - I just ...
A: The fan can be at the top or bottom. It really depends on the unit. They come both ways. The fan ...
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| Home A/C unit overheating | 7/12/2009 |
Q: my home HVAC unit (carrier) is having an issue. if I have the A/C unit shutdown for serveral hours ...
A: Causes for compressor overheating. Poor refrigerant charge (slugging or short on charge) Dirty ...
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| Oil coating inside refrigerant pipes | 7/12/2009 |
Q: Here in Australia a company offers a one time service to remove the coating of oil inside pipes, ...
A: There is a constant flow of oil mixed in with the refrigerant. Unless there is a burn out or some ...
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| some rooms aren't cool or warm | 7/12/2009 |
Q: My house is approx. 9 years old. I have a central heat and air unit. It does a good job of heating ...
A: If you are willing to spend the money, you need to have a test and balance company out to check ...
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| heat pipe technology | 7/11/2009 |
Q: I have been trying, without success, to find a company that can retro-fit my 3.5 ton Goodman central ...
A: There is a company in Gainesville, FL that manufactures the product. (www.heatpipe.com) On the ...
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| ac | 7/11/2009 |
Q: what would be the operating pressures of a janitrol 4.5 ton ac about 12 years old w/outside temps in ...
A: The pressures will fall into a range. The suction is going to be between 64-80 and the discharge is ...
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| Bryant central unit | 7/11/2009 |
Q: The unit has been running for some time now and is not putting out any cool air at all - I just ...
A: The unit contains two fans. One outside and one inside. When the compressor is running, the bigger ...
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| Puron/R22 mixed system | 7/11/2009 |
Q: Is there a way to change valves out of a R22 air handler to accommodate the use of a ( R-410-A) ...
A: You can not use a R-22 evap coil with R-410a. The coil was never rated to run at the pressure of ...
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| air conditioner | 7/10/2009 |
Q: My central air unit suddenly blows cold air into the back area of my manufactured home, and hot air ...
A: It is possible the duct work as come undone. If the ducts are under the house, then climbing under ...
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| Air Returns | 7/10/2009 |
Q: In a 2,500 sq. ft. house, with a 5 ton heat and air unit, how many air returns should there be? ...
A: If you have filter back return grilles, then you need about 200 sq per ton of cooling. So you need ...
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| Unit Size | 7/10/2009 |
Q: I have a four year old 12 seer two ton heat pump in my florida home which is 1083 sqft. I want to ...
A: Without completing a heat load calculation, I do not know about the size. If the house was designed ...
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| humidity high while air is running | 7/10/2009 |
Q: Mr. Borgman, I sent in a question yesterday to a Mr. McAuley -- who was nice enough to respond ...
A: The amount of time the unit runs will vary greatly. The trick is to have is run long enough to cool ...
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| pipe size | 7/9/2009 |
Q: I have an outdoor unit 6 tons capacity, I need to put this outdoor unit 7 floors higher than the ...
A: You have to refer to the manufacture for the proper line size. The amount of floors does not mean ...
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| attic fan | 7/9/2009 |
Q: I am planning installing an attic fan in my 2-story house. My attic size is approximately 1200 ...
A: Well, It took me a bit to figure this out, but if you were to move 1000 cfm though the existing ...
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| compressor not turning on | 7/9/2009 |
Q: I have a carrier unit with the unit in the attic and the compressor outside. When I turn on the ac ...
A: The contactor should be replaced to be sure you do not have any more problems. If there is enough ...
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| humidity high while air is running | 7/8/2009 |
Q: Mr. Borgman, I sent in a question yesterday to a Mr. McAuley -- who was nice enough to respond ...
A: I read this and it was quite long. First, it is possible to have a space of the same size require ...
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| cycling of a/c unit, and too much condensate | 7/8/2009 |
Q: i've just had a contractor install a split system: gas furnace and refrig pad mount unit. we had ...
A: The big unit is a 4 ton and the smaller unit is 2.5 tons. I would estimate without doing a heat ...
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| Air conditioner contracts | 7/8/2009 |
Q: Trying to help out my elderly father down in Fla. He is asking me about getting a service contract ...
A: It is a good idea to have any unit at any age checked out. Even though it is old, a little TLC ...
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| Blower motor won't come on sometimes | 7/8/2009 |
Q: I have a Amana Air Command heat pump that is 20 years old. When fan on thermostat is set to auto the ...
A: The 35 VAC is on the high side. The voltage is rated at 24, and I do not like to see anything over ...
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| My Comfortmaker Central Air Unit Not Working | 7/8/2009 |
Q: My central air unit just stopped blowing air thru the vents. when I set the thermostat to low you ...
A: I do not think the noise you are hearing is water, is it more likely refrigerant. It is possible ...
|
| American Standard v/s Payne Systems | 7/7/2009 |
Q: I live in Irvine, in Orange County CA. My house is 29 years old. Its compressor (the outdoor unit ...
A: Both units are good units, and I would install either one. The Payne is owned by Carrier, and the ...
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| Must reboot to get compresser to work | 7/7/2009 |
Q: I have a Lennox furnace and A/C unit, maybe 12-15 years old. This year the compressor didn't start ...
A: If the complete service call was 250, that is the going rate. It is nearly impossible for a service ...
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| Chiller unit | 7/6/2009 |
Q: we have AC contractor for our retails store area around 7000sqmtr of 2storey building we get supply ...
A: You can not get gpm with the gauge alone. You have to know what the design flow at a give pressure ...
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| Air Handler Blower | 7/6/2009 |
Q: I live in the Phoenix Az area where most homes have a Heat Pump. Original Owner of my home for over ...
A: Your handler is an old school simple control. The compressor has nothing to do with the indoor fan. ...
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| Home A/C | 7/6/2009 |
Q: Living in Fl we are subject to a lot of rusting and high humidity. I have a dryer in line (outside) ...
A: Anytime you treat rust, that is a good thing. I have seen driers last the life of the unit. I ...
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| not cooling. | 7/6/2009 |
Q: Im a 5 yr. tech with my class 1&2 card, residential and comercial experience. Im helping with a unit ...
A: Charging a unit strictly on pressure is a no no and a good way to cause all sorts of problems. ...
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| cycling of a/c unit, and too much condensate | 7/6/2009 |
Q: i've just had a contractor install a split system: gas furnace and refrig pad mount unit. we had ...
A: I have never seen or heard of a 4 1/2 ton unit. They come in 1/2 until 4 ton, then skip to 5. I ...
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| air con blower motor | 7/6/2009 |
Q: My home ac unit only blows one speed, and the ac air flow is week. I can't figure out how to get a ...
A: I was unable to find much about this unit. Due to the age, it is possible, the unit only has one ...
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| Air conditioner contracts | 7/5/2009 |
Q: Trying to help out my elderly father down in Fla. He is asking me about getting a service contract ...
A: I do not trust the contracts. The first time something breaks, they come up with excuses...rusted, ...
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| Fire Ants | 7/5/2009 |
Q: Is it possible that fire ants have shorted something out on my compressor. I have Rheem residential ...
A: Ants, lizzards, snakes, snails and so on can cause all sorts of shorts inside units. The 3 amp fuse ...
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| Air Conditioner's Compressor Locked | 7/5/2009 |
Q: I have an XP15 HeatPump that is just two years old. The AC outdoor started to have all kind of ...
A: The hard start kit installed, should take care of the problem. The problem you are having is ...
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| condenser fan not working properly. | 7/4/2009 |
Q: I have a sears 36m btu air conditioner. This year when I turned it on the condenser fan was frozen ...
A: Not replacing the run cap when you replaced the motor could have burned up the new motor. I have ...
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| Overheating condenser fan motor | 7/4/2009 |
Q: Craig, here's the scenario. I have a 32 year old central air unit. Last year the bearings in the fan ...
A: With the motor not pulling FLA, it is odd that it is overheating. From you description, the wiring ...
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| Air Conditioner | 7/4/2009 |
Q: My central air conditioner is less than 2 years old. I turned it on for the first time this year on ...
A: Insulating the pipe is not going to change the fact the unit is running so poorly. The lack of a ...
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| A/C blower catching fire | 7/4/2009 |
Q: I had an ac man come out and change my capacitor on Wed. He recommended a cleaning and also told me ...
A: There was a sign the motor may have been going bad already...a bad run cap. It is completely ...
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| vacuum pumps | 7/4/2009 |
Q: i'm confussed on using vacuum pumps. wondering if you could help. does all the refrigerent have to ...
A: The service ports on the service valves are opened to the line set. Get the vac on the line set, ...
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| Overheating condenser fan motor | 7/3/2009 |
Q: Craig, here's the scenario. I have a 32 year old central air unit. Last year the bearings in the fan ...
A: The heat coming out of the cond unit could cause the motor to overheat. If the fan is not spinning ...
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| compressor not turning on | 7/3/2009 |
Q: I have a carrier unit with the unit in the attic and the compressor outside. When I turn on the ac ...
A: Using a meter, the power needs to be checked at the cond. unit to see that the compressor contactor ...
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| Honeywell EMM-3 controller on Carrier split system | 7/2/2009 |
Q: Its 105 in Texas and my AC is still acting up after two service calls, please advise? Symptom is ...
A: According to the info in the link you sent me, if both zones are green and no system that means the ...
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| wiring a 15KW Goodman Heater | 7/2/2009 |
Q: I am having a Goodman 15KW heater installed in my home and I am running the wire. I am going to use ...
A: Local codes can vary, but generally speaking, the means to turn off the unit should be within line ...
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| Plenum? | 7/2/2009 |
Q: I am building a 10'X 48 addition to my free standing metal building on 2' high blocks. Can I build a ...
A: If the plenium is not going to support any weight, a good way to take care this is to take the ...
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| Lennox G60UHV (X) Series AC/Heat | 7/1/2009 |
Q: Craig, I had this unit installed 6 years ago. When I started the A/C unit this season, it would run, ...
A: If the transformer was bad, as you might think, nothing would work. I do not see transformers that ...
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| EVAPORATOR PAN | 7/1/2009 |
Q: I HAVE A 4 TON BENCHMARK EVAPORATOR WITH A RUSTED PAN . I BOUGH A RHEEM WELL I THOUGHT BUT THE ...
A: Clearly not all contractors are out to screw the public. I make a good living without having to rip ...
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| Plenum? | 7/1/2009 |
Q: I am building a 10'X 48 addition to my free standing metal building on 2' high blocks. Can I build a ...
A: Both drywall and plywood will absorb moisture, which can cause mold to grow. Although I would ...
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| Lennox G60UHV (X) Series AC/Heat | 7/1/2009 |
Q: Craig, I had this unit installed 6 years ago. When I started the A/C unit this season, it would run, ...
A: I need you to clear up some info for me. The model number you have listed is for a furnace. Which ...
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| dirty blower fan | 6/30/2009 |
Q: i have been told that a dirty blower fan can cause you too lose cfms, i plan on cleaning it this ...
A: Well, the building code for my state does not require it to be hung, joists count as support, it ...
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| a/c condenser not responding | 6/30/2009 |
Q: my condenser is not responding when i turn on the a/c from the thermostat. i know the thermostat ...
A: Someone is going to have to get into the control section of the cond unit and check for both control ...
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| central air conditioning | 6/29/2009 |
Q: I have a 15 year old CA unit, where the model number is not readable anymore. I have no idea how ...
A: There are other clues. Sometimes the coil will have a tag, the txv if is has one, and the ...
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| Trane XB 1000 air conditioner | 6/29/2009 |
Q: We just purchased the house with this unit already installed. I turned it on for the first time and ...
A: The click is likely the contactor, which gets power to work from the air handler. If the outside ...
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| AC not working properly | 6/29/2009 |
Q: In the past couple days my AC is not cooling my house I looked at the inside unit and it is freezing ...
A: The two common reasons for a unit to freeze up is low on refrigerant and poor air flow. The air ...
|
| International Comfort Package units SWAMPED! | 6/29/2009 |
Q: I probably have a wild question, but I'm looking at 2 International Comfort Package units: ...
A: My concern would be the fast water causes things to rust and corroded. The other issue is how much ...
|
| Iceing | 6/28/2009 |
Q: Craig, My Trane XL1200 is 23 years old. Works perfectly for someone who does not have it serviced ...
A: Two common reasons for icing are poor air flow and/or low on refrigerant. To start with, inspect ...
|
| Required AC tonnage for small office bldg | 6/28/2009 |
Q: I am converting a single family residence to office use in Austin, Texas. Very hot summers and ...
A: Without doing a complete heat load calc. there is no way to know what sort of tonnage you need per ...
|
| Circulation issues? | 6/28/2009 |
Q: I live in a 2800 square foot, two story house. We have two units, one for up and one for down. ...
A: The location of the t-stat could have been part of the issue. If the up and down are open to each ...
|
| excessive water from new Trane gaspack HVAC | 6/27/2009 |
Q: Please advise the best manor to handle the drainage of water from my new Trane EER12, SEER 14, 3.5 ...
A: It is a good thing to have this much water, and it can be hard to get rid of it. The one thing I ...
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| Air condition in the attic? | 6/27/2009 |
Q: I'd like to add central air conditioning to my one-story house. The problem is: there's no place in ...
A: Although anything is possible, I have never seen anyone install a cond unit in the attic that works ...
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| help | 6/27/2009 |
Q: I have a Lennox air handler. It is approximately 16yrs old. My question is, I can not get the house ...
A: The gauge pressure is not enough to know if the unit is working ok. However, 85 psi for R-22 would ...
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| Compressor/Condensor Fan not working | 6/27/2009 |
Q: About 5 pm today my ac went from cooling to blowing warm air, we had this problem one other time but ...
A: Since the fan seems to want to work, then at least power seems to be getting where it needs to go. ...
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| Residential HVAC problem | 6/27/2009 |
Q: Unit is runninng for long periods of time and not cooling the house very well. There is cold air ...
A: The temp split you gave me is not very good. The split should be in the 15-20 range, anything more ...
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| Central Air Condensing Unit | 6/26/2009 |
Q: I have an existing 3.5 ton inside/outside central a/c. Can I replace the outside unit with a 5 ton, ...
A: You can not put a 5 ton cond. unit with a 3.5 ton handler. You will not have the required air flow ...
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| Residential HVAC problem | 6/26/2009 |
Q: Unit is runninng for long periods of time and not cooling the house very well. There is cold air ...
A: Although you do not have all the tools, you can take some basic readings. Check the temp. of the ...
|
| relay switch | 6/26/2009 |
Q: Hi I have a heil central air unit the fan on the unit only comes on when you hold down on the switch ...
A: The way to find out if the switch is bad, is to check for 24v control voltage being supplied. If ...
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| air cond | 6/25/2009 |
Q: outside unit changed cond motor had 3 wire, new motor has3 plus 2 for cap
A: Hopefully you bought a new cap, do not reuse the old cap! The wires are typical..Two hots or a hot ...
|
| Honeywell Programmable Thermostat | 6/25/2009 |
Q: I have a Honeywell 5-1-1 programmable thermostat, Model # RTH6400D, that I bought and installed ...
A: Yes and know, and it is common for them to work this way. Since the thermostat might cycle the unit ...
|
| transferable warrantys | 6/25/2009 |
Q: Can a licensed HVAC contractor move a HVAC unit from one house to another and not void the warranty?
A: Maybe...if the unit has never had a claim or registered, then it may not have a name and address ...
|
| Emerson central air conditioner | 6/24/2009 |
Q: I have water come out from under unit and it is getting my carpet wet. Can you tell me what to do ...
A: My bet is the drain line needs to be blown out. Compressed air, water hose or a wet vac will all do ...
|
| HVAC problem | 6/24/2009 |
Q: We have installed 8.5 Ton duct able split A/C in our office - but in one perticular area which is ...
A: You need to have a companies that specializes in indoor air quality (IAQ). I have heard of these ...
|
| cental air conditioning not working | 6/24/2009 |
Q: was wondering why my house is not cooling off looked out side and unit not coming on
A: There are many reasons from electrical to mechanical failures. Before you call for service, you ...
|
| HVAC system | 6/23/2009 |
Q: We installed a new frigidaire hvac unit in 2004. We have had nothing but trouble w/ the temperature ...
A: As I do not know, there is a good chance the pipe travels a good ways under the slab to the great ...
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| HVAC system | 6/23/2009 |
Q: We installed a new frigidaire hvac unit in 2004. We have had nothing but trouble w/ the temperature ...
A: Most of the time the water is due to the fact the drain line is not cleaned out enough. Some drains ...
|
| Central A/C Shield From Sun? | 6/23/2009 |
Q: Will my central a/c run more efficiently if I shield it from the sun? It is located on the South ...
A: Shielding the unit is a good thing to do no matter which way you look at it. The direct sun is ...
|
| Honeywell vision pro 8000 TH8110U1003 cool system won't turn on | 6/22/2009 |
Q: All the wires were set up correctly Red(the 'hot' wire) to C, yellow to Y, green to G, and white to ...
A: At this point in time, I need more info from you. What kind of unit do you have? Heatpump, elect ...
|
| Outside unit not running | 6/22/2009 |
Q: I have a Bryant 10 seer split system heat pump. 6 years old. Noticed the outside unit was making a ...
A: I can not be completely sure what is wrong without checking things out. My guess is the cond. fan ...
|
| boiler/air conditioning | 6/22/2009 |
Q: Is there such a thing as a hot water boiler/ air conditioning unit? A few years ago I thought I ...
A: It is called a water to water heatpump. It requires ground loops or wells to work. It is also ...
|
| air conditioning question | 6/21/2009 |
Q: My son who lives at my house called and said the unit was running all day but not cooling. I went ...
A: The switch that you are referring to, I think is the compressor contactor. They do go bad, and if ...
|
| New HVAC High Humidity in House | 6/20/2009 |
Q: I just had a Lennox Signature XP15 heat pump and CBX32MV air handler installed. The system cools ...
A: Here are the things to consider...The new unit is too big, and not running long enough to remove ...
|
| AC Unit fuse | 6/20/2009 |
Q: I have a Goodman AC unit in my back yard. The box attached to this unit has 2 red lights, with a ...
A: I am not sure what the "attached box" is, but I am guessing it is a fused disconnect. Do stick your ...
|
| A/C quits blowing condensor freezes | 6/19/2009 |
Q: A few years ago my relay switch went out on my heater so i replaced it. This last yr. and more ...
A: When the indoor(?) blower quits working, is the thermostat calling for cooling? Is the the outdoor ...
|
| Smell from air coniditioning vent | 6/18/2009 |
Q: We have central air, each time the air is turned on a awful smell comes from the vent closest to the ...
A: A/C systems are good places for mold and mildew to grow. As things heat and cool, moisture forms, ...
|
| evaporator | 6/18/2009 |
Q: I live in texas and my central air is not cooling. It is fine when outside temp is 70 or below. I ...
A: If there is no moisture on the coil or in the pan, then there is a problem. You did not mention it, ...
|
| return air grill | 6/17/2009 |
Q: my return air grill is located on the hallway wall a few inches above the floor, and feeds the chase ...
A: It really should not matter either way. Some homes have them in the ceiling, and others close to ...
|
| No blower on Carrier Furnace | 6/17/2009 |
Q: I just replaced my main control board per my local Carrier dealer. Had no blower operation, still ...
A: The problem could be a new faulty board, I have seen it before. There is not any way for me to say ...
|
| swamp cooler | 6/16/2009 |
Q: We bought house few months ago and the evap cooler looks fairly new however was unplugged from power ...
A: It might be normal, if the area you live in freezes up. Water in lines will freeze and bust lines. ...
|
| central air has hard time kicking in commpressor | 6/16/2009 |
Q: Craig, my home central air compressor will only start if you hose of the coils on the compressor ...
A: If the compressor does not have one already, then a hard start kit may solve the problem. If is has ...
|
| A/C drain pipe is plugged, won't un plug | 6/16/2009 |
Q: I have a central A/C unit. The blower+coils are in the attic. For about a week now I have been ...
A: Normally units do not drain into the sewer. In may places, it is illegal to dump the condensate ...
|
| NOISY DUCT? | 6/15/2009 |
Q: HELP!!! My name is Mark and I live in South Jersey in a two story colonial house built circa 1970. ...
A: You need to determine if the problem as anything to do when any of the appliances fire. As you did ...
|
| Compressor Oil and Freon | 6/15/2009 |
Q: I am involved in a unique situation. A clients A/C line set was punctured by a roofing nail ...
A: The refrigerant should have cleared out after a bit of time. If the system was running normal, I do ...
|
| New Goodman 16 seer split heat ac/ central | 6/14/2009 |
Q: Good morning Craig: Here is my question; I recently had a new system installed in my home to replace ...
A: The cover on the compressor is not needed, but it is there to help keep the compressor warm in cold ...
|
| The outside a/c unit breaker trips all the time | 6/14/2009 |
Q: my outside a/c unit breaker trips off every hour, so the fan not running when it trips(the blower is ...
A: One of the common solutions for the problem is to install a hard start kit on the compressor. It is ...
|
| AC Unit | 6/13/2009 |
Q: My fan on the outside ac unit is not turning. There is some air coming thru the vents but it is ...
A: Do not run the unit until you get it fixed, otherwise you are going to cause more damage. The ...
|
| Goodman 2.5 ton, make it colder? | 6/13/2009 |
Q: I want the compressor to turn off after an hour. I live in 29 Palms CA where the summer temps are ...
A: The way I described it, is the way ALL a/c systems work. Cool is created when liquid is boiled off. ...
|
| Goodman 2.5 ton, make it colder? | 6/13/2009 |
Q: I want the compressor to turn off after an hour. I live in 29 Palms CA where the summer temps are ...
A: It is not possible...plan and simple. The difference in the outdoor and indoor for one, and at 65 ...
|
| central a/c system | 6/12/2009 |
Q: This is kind of an odd question but i need to be able to cool my downstairs but not the upstairs. I ...
A: In order to do what you want to do, you have to have a zone system or two units. You will not be ...
|
| Air conditioner won't cool | 6/12/2009 |
Q: Craig, A service tech examined my 10 year old Bryant 2 ton A/C unit and stated that it needs a new ...
A: There are some fan motors out there that are that expensive, but on a 10 year old unit, my guess is ...
|
| Trane Heat Pump | 6/7/2009 |
Q: Our Trane heat pump stopped working, we could hear it hum when turned on, but have turned it off. ...
A: The hum can be any number of elect. components, and may not be caused by the problem you are having. ...
|
| HVAC equipment /sizing | 6/6/2009 |
Q: I need to replace my outdoor condenser unit compressor model no. is H21B283ABCA is this a 2 tons ...
A: Given the info of the compressor, I gave you my best guess on the size of the unit. The next step ...
|
| a/c + heat unit 2 tons | 6/6/2009 |
Q: Sirs, which model (name too if possible) and how many tons will you recommend for us to purchase ...
A: Condos can be tricky. Depending on what floor, how exposed the unit is to the sun all play a factor ...
|
| Corroded coils on furnace | 6/5/2009 |
Q: An HVAC technician just left after inspecting my upstairs unit, Carrier 38YCC, which is a little ...
A: Once things start to rust, a coating is not going to stop it. The coating should have been applied ...
|
| Central AC model AJ030G2 | 6/4/2009 |
Q: I had the same problem the following guy has: ...
A: As in the previous response, you need to check to see if you are getting 24v control power to the ...
|
| Air Conditioning Problem | 6/4/2009 |
Q: We have a Trane Central Air Conditioning unit. It is model number BTD 730 A10080. When we turn it ...
A: There are a wide range of problem from electrical to mechanical that can cause a unit to ...
|
| no power to heating and air unit | 6/3/2009 |
Q: My condo heating and air unit(the outside portion) is only 5 years old. I had it serviced last ...
A: In some cases, a unit can fail if it is not properly maintained. I would not think that not ...
|
| zones | 6/3/2009 |
Q: I am considering leasing a 2500 sq ft leasehold space. I would like to have 4 zones with positive ...
A: My guess is you are dealing with a commercial space. Since commercial spaces have such a wide range ...
|
| return size | 6/3/2009 |
Q: I have a 4 ton seperate heater/a/c and the flow out the registers is weak, I have checked for leaks ...
A: I would expect the air flow to really get moving when you opened up the door, and at that point ...
|
| leaking ac unit | 6/2/2009 |
Q: my unit is blowing water off the coil into the supply air duct.my drain is working well and my coil ...
A: The coil can be cleaned inside the unit, but removing the coil is the best way to get it completely ...
|
| AC not working, fuse kept blowing out | 6/2/2009 |
Q: I have tow sets of Goodman GMS8 furnace and GSC130301AE air conditioning systems less than two years ...
A: Likely one of the devices that uses 24v is bad, causing the fuse to blow. It can also be a bad or ...
|
| leaking ac unit | 6/2/2009 |
Q: my unit is blowing water off the coil into the supply air duct.my drain is working well and my coil ...
A: Water blowing off can be cause by several things, including high humidity in the space. It is ...
|
| PTAC unit | 6/1/2009 |
Q: I have an old GE PTAC unit that was purchased used from a contractor. Turns out the AC doesn't work ...
A: Ptac units are nice, but with such a small space, I would just go with a "window shaker". They are ...
|
| condensor icing up on furnace | 5/31/2009 |
Q: Will an additional cold air return help? will a booster fan in a cold air return help move more air ...
A: More return will only help if the return is too small to begin with. There are many reasons for a ...
|
| Janitrol A/C Unit | 5/30/2009 |
Q: I recently bought a house, the seller installed a new Janeiro Heat and AC unit. The heat worked ...
A: With a split level and one unit, it is very common for the upstairs to be a bit warmer the the ...
|
| leaking condenser pan | 5/30/2009 |
Q: My home central A/C is working fine (coil and compressor). The problem is the water than condenses ...
A: Depending on the brand of unit and the age, there are a few different ways this can go. Sometimes ...
|
| Janitrol A/C Unit | 5/29/2009 |
Q: I recently bought a house, the seller installed a new Janeiro Heat and AC unit. The heat worked ...
A: You may not be able to get below 75. It is normal for a unit to only be able go get 20 degrees ...
|
| High Energy Bills | 5/29/2009 |
Q: We took the Energy Star Home Energy Yardstick, we entered our last 12 months of power bills, the ...
A: Energy bills seem to be increasing, but the actual power usage is not. You need to check to see how ...
|
| blocking heat | 5/28/2009 |
Q: We no longer use swamp cooler thus no use for upducts in ceiling for swamp cooler and I notice alot ...
A: The best thing to do is cuts the ducts off in the attic, and patch over the holes. The ducts are ...
|
| R410A | 5/28/2009 |
Q: does anybody have a good way to "sweep" the lineset with nitrogen when using R410A equipment ? I ...
A: They sell regulators that have flow control built in. They are used when working is gasses for ...
|
| ac | 5/22/2009 |
Q: i have a comfortmaker furnace and a frigidare c a and it was just charged but it dosent seem like ...
A: There are several reasons for the unit to be performing as you describe. The first thing you need ...
|
| Air conditioning | 5/21/2009 |
Q: questions! I recently purchased a 4 story historic building and need to install an air ...
A: There are a lot of issues with adding A/C to a building that has none. There are units that can be ...
|
| AC | 5/21/2009 |
Q: My outside unit seems to be working fine but under the house it's making a rattling noise only when ...
A: The problem can be any number of things from a bad motor to just something loose or dirty. Until ...
|
| Air flow niose | 5/20/2009 |
Q: Craig, We have just had the air handler portion of one of our 20 ton units in our church replaced. ...
A: The reason for the noise is the velocity of the air. Slowing the fan down is one way to control the ...
|
| balance temps | 5/20/2009 |
Q: I have recently asked questions about partially blocking vents in cold area of house which is right ...
A: No matter which way you look at things, having the air flow balanced is the best way. You might ...
|
| a/c will not turn off | 5/19/2009 |
Q: When I'm running my central air and the thermostat reaches and goes below the desired setting my ...
A: Well, this not happen very often where everything keeps on going. It could be one of several ...
|
| Contactor switch | 5/19/2009 |
Q: We have a switch that should be holding at 24V however on the A-1 and A-2 prongs on the contactor ...
A: The voltage can not be adjusted per say. You need to check the voltage at the transformer and see ...
|
| Replacement good idea? | 5/19/2009 |
Q: We live in Orlando, Florida and have a 3 ton Rheum (SEER 10)Condenser Unit which was replaced in ...
A: Even though you have a 10 SEER, as long as it is good working order, I would not replace it now. ...
|
| 1100 sf Michigan Home | 5/19/2009 |
Q: I am purchasing a home in south east michigan without a furnace in it right now. The house is about ...
A: Without doing a heat load calc. on the home, I can not determine what size you need installed. The ...
|
| central AC model comparison | 5/18/2009 |
Q: Please, Consumer Reports doesn't address this: How do Carrier, Luxaire (York), Trane, Heil, compare ...
A: Word of mouth is probably the best. My state has website where you can check out the contractors ...
|
| Heating a humid home | 5/18/2009 |
Q: Craig, my home, a 2000 sq.ft. bi-level contemporary, does not have an affordable heating system. ...
A: Heating air will actually reduce the RH%. Heating does not add or remove moisture. In order to ...
|
| no ac cool | 5/18/2009 |
Q: Graig,not sure the exact size of my ac but but i think its about a 2.5.in cool mode fan comes on ...
A: There is more then one reason for a compressor to run at lower then normal RLA. Once a set of ...
|
| central AC model comparison | 5/17/2009 |
Q: Please, Consumer Reports doesn't address this: How do Carrier, Luxaire (York), Trane, Heil, compare ...
A: The funny thing is, they are all on pretty even playing ground. Although I feel Trane may be the ...
|
| ac/heat pump | 5/17/2009 |
Q: lost power for a minute,came back on and since then my ac/heat pump blows hot air on cool ...
A: Hard to say. Try turning off the power to the unit and resetting. I am not sure how much time as ...
|
| Compresor current operation | 5/17/2009 |
Q: I have a 24.000 btu a/a. The nominal run current (specifications) is 11 amps. I check currents a I ...
A: That can be a sign of problems to come. If the compressor is drawing that many amps, it can cause ...
|
| Furnace not lighting | 5/16/2009 |
Q: After having my furnace diagnosed by a tech, I replaced the control board and gas valve. The ...
A: You have to use a meter and check to make sure the power it where it is suppose to be when it is ...
|
| Air Conditioning | 5/16/2009 |
Q: I have a Lennox 3 Ton Air Conditioner that is about 15 years old. About 2 years ago we had a ...
A: The unit cycling can be caused from various problems. If you have a pump down type system, then it ...
|
| HVAC Quotes | 5/15/2009 |
Q: I am trying to replace coil and condenser at my Mom's house. The quotes that I have that I am ...
A: Goodman is not my first choice of units. I am not saying there is anything wrong with the brand. ...
|
| how well is my house insulated | 5/15/2009 |
Q: Is there a standard for temp differences from outside to inside to determine how well insulated a ...
A: The outside temp is not the only factor. The sun beating down on the roof and walls will add more ...
|
| 3 ton vs 4 ton unit | 5/14/2009 |
Q: I am planning to replace my central ac unit. My house is 1200 square ft. I am wondering about the ...
A: You barely need a 3 ton unit more like a 2.5 ton, unless the home is older and poorly insulated. ...
|
| HVAC Quotes | 5/14/2009 |
Q: I am trying to replace coil and condenser at my Mom's house. The quotes that I have that I am ...
A: The Trane and American Standard are the same, both made by Trane. The Bryant is owned by Carrier. ...
|
| Leak Test | 5/13/2009 |
Q: I have been quoted a leak test by 2 different guys. The cheaper guy uses a electronic device to ...
A: They both work. It might be quicker to find the leak with an electronic. It could be possible that ...
|
| Air Conditioner is Blowing Warm | 5/13/2009 |
Q: Craig, I currently have a 10 year old split system. Up until this year the unit has run great, ...
A: The unit is probably smaller because of the lower SEER rating. The newer units with the higher SEER ...
|
| temp balance | 5/13/2009 |
Q: So I have been trying to adjust a/c vents to direct more air flow to west side bedrooms in our az ...
A: The thermostat was not tricked, it is quite dumb. All it knows is the air temp in the space that it ...
|
| Have air but the panel not working | 5/13/2009 |
Q: We have a White Rogers AC/Heating Unit, been 2 and half year in the new house. Just recently we have ...
A: The White Rodger is just the thermostat, WR does not make units themselves. It can be a number of ...
|
| small AC for a generator | 5/12/2009 |
Q: I have a Honda 2000i (2000 watts (16.7 A)- I'd like to run a small AC (5000-7000BTU) on a ...
A: Since the compressor is the biggest user of power, the compressor amps need to be known. Then you ...
|
| HVAC troubleshooting | 5/12/2009 |
Q: I am having trouble with my AC unit. I have found some of the pipes in the unit's "closet" to have ...
A: The frost is a sign of a problem, which is going to require some service. The frost can be caused ...
|
| small AC for a generator | 5/12/2009 |
Q: I have a Honda 2000i (2000 watts (16.7 A)- I'd like to run a small AC (5000-7000BTU) on a ...
A: I have a link to Honda's website... ...
|
| Noise | 5/11/2009 |
Q: I have a package A/C unit on my roof above the bedroom, resting on four concrete solid blocks. Is ...
A: They make rubber pads that can be placed between the unit and the sleepers (the blocks). It comes ...
|
| my ac is not blowing cold | 5/11/2009 |
Q: when i turn my ac on in my home everything comes on and the compressor kicks on then kicks off after ...
A: It might be a sign that the unit is low on refrigerant, but other things can cause that sort of ...
|
| HOME AC UNIT (CARRIER) | 5/11/2009 |
Q: I know I'm going to sound silly but I have a Carrier home AC unit. I know that there is a part of ...
A: Hopefully, you will get a honest repair company with good people so you do not get ripped off. If ...
|
| Adding in-line duct fan to AC/Heater Unit | 5/10/2009 |
Q: I have some knowledge of HVAC, however not much electrical. I have installed Suncor 6" duct fan and ...
A: I am guessing you have a gas furnace. You do not want to connect to the inducer fan, but you want ...
|
| Trane XB13 heat pump outside unit | 5/10/2009 |
Q: Installed 15 months ago & has worked fine until this afternoon. Outside unit not working (fan ran ...
A: Using a meter, it needs to be determined if the power is actually going to the unit. Both the 24v ...
|
| 2nd Floor Air Flow | 5/9/2009 |
Q: I have a 2.5 ton 14 SEER Trane. the air flow to the two second floor bedrooms and bathroom could be ...
A: Closing off some of the vents might help to force more air upstairs. If the t-stat is on the first ...
|
| Replacing heat pump | 5/8/2009 |
Q: I have a old heat pump 3 ton 17 years old...it died. We replaced the air handler under the house ...
A: It can and has been done, just changing out the cond. unit and leaving the air handler. Some ...
|
| Coleman Furnace AC unit | 5/7/2009 |
Q: I have a very old probably early eighties in a mobile home. I have two questions, where do you oil ...
A: Not all motors have a place to oil them. If the motor you have requires oil, there will be a small ...
|
| Gas furnace | 5/6/2009 |
Q: I have a 2002 Bryant gas furnace. I bought this house in September 2008 and was told that the ...
A: The SEER rating (which is what I believe they are referring to)does not play a part in size, just ...
|
| Advice on package units | 5/6/2009 |
Q: Craig, I've spent countless hours researching and have not been able to find the answers I have ...
A: To compare here with what you have is kinda hard with the different tonnages. However, if you were ...
|
| HVAC Coil Still Icing & house not cooling after Cleaning | 5/5/2009 |
Q: Coils recently started icing 2/3 up from the bottom. they'll de-ice within 2 minutes after shutting ...
A: The unit you have is only 2.5 tons, using the given model number. It may not be big enough to cool ...
|
| central heat/air problems | 5/5/2009 |
Q: The unit won't turn on. We replaced the thermostat but still won't kick on. The exhaust fan is ...
A: It could be a control board bad in the unit. When boards go bad, units can do strange things. If ...
|
| a/c unit | 5/5/2009 |
Q: how much should 6 pounds of freon cost
A: I do not really keep track of pricing. The price changes offen, and there is a wide range depending ...
|
| refrigerant leak detection | 5/4/2009 |
Q: I saw your previous answer regarding use of Bacharach H10- I wanted to know if you still felt that ...
A: I stand behind the H-10 Recently my company purchased me another type...and it is a piece of crap. ...
|
| Central A/C noise | 5/4/2009 |
Q: When I first switched to A/C this month, I turned on the unit and I hear a rattling noise, like ...
A: Some units have different fan speeds for heating and cooling. It could be a case of a change in fan ...
|
| Selection and installation of UV C Filters | 5/4/2009 |
Q: Good day, I moved in the apartment and live there for nearly 4 years, all was good & then start to ...
A: A UV light, HEPA filters in the unit can help to control dust, pollen etc. I think you ought to ...
|
| single pole contactor | 5/3/2009 |
Q: I am trying to replace my single pole contactor and purchased a 2 pole. Can I use the 2 pole to ...
A: Other then the fact that the single has one, and the 2 has to sets of contracts, they are wired the ...
|
| Water in drain pan | 5/3/2009 |
Q: All of the sudden I am seeing water in the drain pan under my HVAC. It is operating fine just like ...
A: The main drain can be just about anywhere, but most of the time it is somewhere near the unit ...
|
| Gas furnace | 5/3/2009 |
Q: I have a 2002 Bryant gas furnace. I bought this house in September 2008 and was told that the ...
A: You did not need a matching brand name system, but everything needs to match size wise. If you ...
|
| Goodman gas furnace | 5/2/2009 |
Q: My daughter has a Goodman furnace that has been acting up on and off for the past couple of years. ...
A: Remove the stat and remove just the red wire. If the fan stops, then you have a bad stat again. If ...
|
| TRANE XE-80 heating problrm | 5/2/2009 |
Q: Problem with Trane XE-80 heating. ( A/C works fine ). When set to heat, flame comes on, then fan ...
A: You may actually have a problem with the unit for the high temp cut out. It is also possible the ...
|
| Air Conditioning | 5/2/2009 |
Q: Our downstairs a/c unit stopped working. fuses are ok. electricity is going from the pressure switch ...
A: It can the relay. If you have 24v, then I would not think anything wrong with the transformer. ...
|
| heat pump ceiling air vents | 4/30/2009 |
Q: Noise is coming from my ceiling vents constantly for the past few days with the heat pump not in use ...
A: I really need to hear the noise, but I bet is could be the transformer in the air handler. It is ...
|
| condenser won't run | 4/29/2009 |
Q: i have a ruud 3 ton condenser that will not run. I also have a twin of that right next to it. I have ...
A: To me, it sounds like there is something wrong in the wiring. It could also be a case of you not ...
|
| condensing unit. | 4/29/2009 |
Q: i've been told that to add oil through the suction port, the unit has to be running and charged. ...
A: You need to have the compressor running to add the oil. If you do not, then the oil can sit where ...
|
| Fan | 4/29/2009 |
Q: I have a Courier a/c unit where the blower fan stays on continuously. The Thermostat fan control on ...
A: The problem can be a wide range of things, and that will vary depending on how old the unit is and ...
|
| outside central air unti | 4/23/2009 |
Q: where on the unit does it tell the size,or tons,on how big the unit is?
A: The model number normally will have the tonnage in it. The tonnage is normally listed as a number, ...
|
| comfort maker | 4/23/2009 |
Q: I have a comfort maker model 397H air condtioner. I came home and found that it was not cooling the ...
A: When the coil iced over, the best thing is just to set the unit to off, and turn the fan to on. The ...
|
| 3 phase copeland compressor. | 4/23/2009 |
Q: how do you add oil to a condensing unit compressor. what are the proper steps and what kind of ...
A: If there is not a valve near the bottom in the oil sump, then you can pump it in the suction. You ...
|
| removing cooler | 4/22/2009 |
Q: Were getting roof redone and want to get rid of swamp cooler. What is the best method? Roofer says ...
A: You can remove the cooler, but you also need to remove or seal up any of the ducts. This will stop ...
|
| Air conditioner | 4/22/2009 |
Q: My ac unit seems to start up and turn off several times per hour. Could there be a better ...
A: This problem can occur for a few reasons....The thermostat can be one of the problems. You might ...
|
| Ducane Furnace Problem | 4/20/2009 |
Q: I noticed that my furnace ( Ducane Model #MPGA075B3 ) seems to be delaying a bit before lighting. I ...
A: Right now is sounds like is could just use a good cleaning. You also need to check the flame ...
|
| furnace | 4/20/2009 |
Q: A heat loss calculation of 52,000 was done on the house. My question is should a 45,000 or a 60,000 ...
A: I am not a fan of Goodman and would install something else. That is not to say that there is ...
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| HVAC Question | 4/20/2009 |
Q: my question is about the thermostat wires that run from the thermostat to the outside unit. This is ...
A: You should only need two wires. You need to see that you have 24v going to the contactor for ...
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| Ducane Furnace Problem | 4/20/2009 |
Q: I noticed that my furnace ( Ducane Model #MPGA075B3 ) seems to be delaying a bit before lighting. I ...
A: Which blower, the induced draft blower or the main air flow blower. You could be having issues with ...
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| Upstairs A/C | 4/19/2009 |
Q: Greetings from a fellow All Experts Volunteer! Just became an empty-nester, we're in a 2-floor 3600 ...
A: Closing off that much air flow to one unit is going to create many problems later. You are better ...
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| furnace | 4/19/2009 |
Q: A heat loss calculation of 52,000 was done on the house. My question is should a 45,000 or a 60,000 ...
A: You are probably better off with the bigger unit. Depending on the unit, they can have variable ...
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| air conditioner does not cut off | 4/18/2009 |
Q: When the air conditioner is set on 70 degrees it will not cut off. Gets down to 60 and you have to ...
A: You have what is known as a zone system. The system contains a zone controller, which gets it ...
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| AC handler | 4/17/2009 |
Q: I've sent another email to you. I saw a question on ac from last year, hope you can still give me a ...
A: The problem can be one of a few things. You need to check to see if the motor is getting the proper ...
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| Airconditioning Unit | 4/17/2009 |
Q: I am building a new home with about 1800 SF 1st floor, 2100 SF 2nd floor and 1600 sf basement. The ...
A: I do not think the units are going to 120 tons each. The return needs to be big enough to handle the ...
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| New Furnace and Heat pump | 4/16/2009 |
Q: I am in the market for a new furnace and heat pump. Are there a few brands that are known for ...
A: Brands is a matter of choice. Trane being one of, if not, the best out there. Trane is probably ...
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| New Trane unit doesn't blow hot air | 4/15/2009 |
Q: New 19KW Trane unit installed 6 months ago and it only blows luke warm air. Installer has been out ...
A: Ok, wow...why would anyone install elect. heat strips as the main heat where you live... One kw is ...
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| heat pump replacement | 4/14/2009 |
Q: ..just read your response and help to Doris and thought i would make a plea for help also...i have ...
A: Trane is probably one of the most expensive out there. Trane is probably one of the best as well. ...
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| Refrigerant blends | 4/11/2009 |
Q: Can R409 be used as a drop-in for R12; in others words, can the two refrigerants be blended? How ...
A: It can be used for R-12, but not in cars. You have to completely remove and evacuate the R-12 ...
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| Boiler working but losing hot water down the system | 4/10/2009 |
Q: We are working on a system that seems to be pretty old. We got in between 150 to 200 degrees out of ...
A: It could be the mixing valve, but it could also be the dip tube in the tank. If the tank is vert. ...
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| Coil fin replacement | 4/10/2009 |
Q: The coil fins on my exterior condenser unit of my rental property have been damaged by dog urine. ...
A: You might be able to get a new cond. coil for the unit. With the unit being 12 years old, I am not ...
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| converting from electric to gas heat | 4/9/2009 |
Q: I live in NJ and have a ranch which is approx 3000 sq feet. I have electric baseboard heat ...
A: The difference is not that much, and with the variable speed, should not make a difference. Adding ...
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| Peerless | 4/9/2009 |
Q: I have a Peerless boiler w/double coil. I have endless hot water. The boiler needs to be replaced. I ...
A: Anytime you are storing hot water, there is going to be heat loss. You may not have "endless" hot ...
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| Air conditioner | 4/8/2009 |
Q: What causes my air conditioner to freeze up.
A: There are quite a few things, and any number of a combo of things. dirty coil dirty filter poor air ...
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| transformer wiring | 4/8/2009 |
Q: I have to put a transformer on my outdoor unit because my electric furnace inside doesnt have a spot ...
A: A transformer is not going to have a place for Y. To run the cond unit, you should only need the ...
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| Auto fan function isn't working | 4/8/2009 |
Q: I have a Rheem Imperial Ad Plus heater, older model. The heat works great. When I don't have the ...
A: Not all furnaces have a way to turn the fan on only. If you remove the t-stat from the wall, there ...
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| gas hot water heater | 4/8/2009 |
Q: my gas hot water heater works fine has no leaks on the tank but the presser vales is leaking a small ...
A: You should be able to get a new T & P valve at just about any hardware store that sells water ...
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| Indoor unit motor | 4/7/2009 |
Q: I have a trane split unit TWR024C100A in my house that has been having a few problems of late. When ...
A: The model number of the condensing unit does me no good to know what air handler you have. Changing ...
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| HVAC gas pack replacement | 4/7/2009 |
Q: I am having a tough time finding good information about the gas pack in HVAC systems. I am buying a ...
A: There can be some confusion with the term "gas pack". It is typical for a gas pack to be considered ...
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| Residential spark ignited boiler, inop | 4/6/2009 |
Q: Nat gas fired boiler. Will not heat, do not know if A/C works- it's still <40F ambient in this area. ...
A: If the gas valve is getting power, then the t-stat is working. It also means that all of the ...
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| Carrier heat pump unit lock out, | 4/5/2009 |
Q: Notes: We have 23 Carrier roof top units. On 4 of them (Model # 50EWQ028) we have a problem: in cold ...
A: The unit has a control board. The control board has an LED that blinks. Counting the blinks should ...
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| Frigidaire FG7TK Furnace Filter | 4/5/2009 |
Q: I have just installed a new Frigidaire furnace FG7TK series but cannot locate any air filter ...
A: Manufactures are not installing filter racks inside the unit any more, which I find to be "dumb". ...
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| New Heat pump and electric Furnace | 4/5/2009 |
Q: I am currently in the market for a new Heat pump and Electric Furnace. I live in central Ohio, cold ...
A: Pricing is not something I can really do on this site. Considering I really do not know your needs, ...
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| Copper Tubing | 4/4/2009 |
Q: I am doing the installation of the copper tubing for my ductless AC Unit. I have damaged the 3/8" ...
A: You should not use the tubing, unless it is ACR tubing. There is a difference. ACR tubing is ...
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| converting from electric to gas heat | 4/4/2009 |
Q: I live in NJ and have a ranch which is approx 3000 sq feet. I have electric baseboard heat ...
A: Personally, being somewhat old school, I like metal ducts. I would have preferred metal in my new ...
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| 2009 Energy credit for AC | 4/3/2009 |
Q: We are interested in upgrading our 10 seer AC unit to a 16 seer and getting the energy tax credit. ...
A: I know the tax credits to exist, but I am not sure on the rules. A furnace is the air handler. A ...
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| converting from electric to gas heat | 4/3/2009 |
Q: I live in NJ and have a ranch which is approx 3000 sq feet. I have electric baseboard heat ...
A: Most new homes these days are built using flex. Like anything else, keeping the runs as short and ...
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| ac insulation | 4/2/2009 |
Q: Craig I need to replace the insulation surrounding the copper line that runs from the compressor to ...
A: None, of the stuff is going to last in the Fl. sun. The key to keeping it around is to paint, ...
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| Replacing Residential HVAC | 4/2/2009 |
Q: my apologies; the recommended replacement unit is a Trane supposed to be a 14 seer unit. Can you ...
A: The SEER rating is a funny thing. Manufactures work the unit to work at a given SEER rating with ...
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| Replacing Residential HVAC | 4/2/2009 |
Q: We're replacing a 1992 carrier 4 ton unit in a 2100 SF home with 22 windows. Live in Frisco, TX, ...
A: Everything listed there should match with no problem. Trane is good with making sure that what you ...
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| Air duct leaking water | 4/2/2009 |
Q: We have water leaking from our basement thru the airducts. The water is coming from the place where ...
A: It is rare that water coming from ducts is a plumbing problem, although I have seen some strange ...
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| HVAC in the humid south | 4/1/2009 |
Q: I am trying to figure out how to get my oversized AC unit (4ton) to better remove humidity in the ...
A: Besides slowing the evap fan down and having a TXV on the coil, there is not much you can do. The ...
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| HEAT PUMPS | 4/1/2009 |
Q: Sir, I live in Ft. Myers Florida and presently have an old Trane system with a heat pump (1987) and ...
A: Most units install the same, but some units are harder to buy. Trane is one of the top units, if ...
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| HVAC Compressor Grounded Out | 4/1/2009 |
Q: My local HVAC service company is telling me that my compressor has grounded out due to a power surge ...
A: As far as I know, all of the parts in your unit can be purchased. Granted, there may not be an ...
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| outdoor coil cleaning | 4/1/2009 |
Q: My outdoor coil is 12 years old and has never been cleaned. I brought a acid cleaning solution for ...
A: Take the acid back! Most of the time using a Degreaser like Simple Green, Greased Lightning etc. ...
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| HEAT PUMPS | 3/31/2009 |
Q: Sir, I live in Ft. Myers Florida and presently have an old Trane system with a heat pump (1987) and ...
A: Heatpumps cost less to run then heat strips for heat. Now, in Ft Myers I would be willing to bet ...
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| No Heat | 3/31/2009 |
Q: Morning, Two days ago my heat was working fine, then yesterday I noticed that it wasn't kicking on. ...
A: It might be the thermostat. Turn off the power to the unit. Remove the wires that go to the R W ...
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| gas furnace not working somtimes | 3/30/2009 |
Q: i have a armstrong air ultra tech 80 down flow.Just lately it will try to go through its cycle three ...
A: When you cycle the power, you reset any alarms. I believe your unit has a inducer fan in it. If ...
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| thermostat instalation | 3/30/2009 |
Q: i purchased a low voltage hooked it up turned on ac it sparked and shut down. Now went out and ...
A: I do not understand what you are trying to say. You disconnect the "higher voltage" from what? ...
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| power switch to furnace | 3/30/2009 |
Q: I was going to replace my thermostat (current is original builder) for my heat pump. When I went to ...
A: I am not quite sure what you have. A furnace is the term used when a fuel source does the heating. ...
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| Power | 3/29/2009 |
Q: t_stat comes on ,but when i move slider to ask for heat or cool it shuts off, I hear a click from ...
A: You were confusing, because when I think of a slider, it think if a non-digital type t-stat. On the ...
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| Residential HVAC - New Carrier Unit | 3/29/2009 |
Q: We purchased a new Carrier unit both the compressor and the air handler. The compressor is ground ...
A: When converting to R-410a, the line set should be changed out, or needs to be cleaned out. When the ...
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| Power | 3/27/2009 |
Q: t_stat comes on ,but when i move slider to ask for heat or cool it shuts off, I hear a click from ...
A: You need to know how to use the voltmeter and what sort of reactions you are going to get when you ...
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| A/C drain lines | 3/27/2009 |
Q: I have a 2story house where the drain line from the pan comes out in above the a window of the 2nd ...
A: Most places make it against code to have the water drain into the sewer. It is common to have the ...
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| ac repairs | 3/26/2009 |
Q: We just had roof ac repair done under our home warranty. Unit is bout 12 years old and tech said he ...
A: I am not sure what you mean by replaced the condenser...Anything that got replaced, should look new ...
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| heater or thermostat malfunction | 3/26/2009 |
Q: we've a carrier weathermaker 8000 gas furnace and a hunter energy moniter II plus thermostat. we ...
A: You can removed the t-stat from the wall and disconnect the wire that goes to the R term, normally ...
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| rheem filters | 3/25/2009 |
Q: donna: I have a Rheem Criterion II gas furnace. Trouble finding correct size filters. I have been ...
A: It may have come with a filter, but those filters are crappy. Many hardware/ home improvement ...
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| payne heater | 3/25/2009 |
Q: I have a payne heater that is about 19 years old. It has been working fine up until recently. I ...
A: Since you are asking for help here, and you have not indicated you have done anything to ...
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| Wall unit for "bonus room" in attic space. | 3/23/2009 |
Q: We have a shop/garage building which has a "bonus room" above the garage. The room is approximately ...
A: Give the small size of the unit you are going to need, there is not much out there with ducts. Your ...
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| AC ELECTRIC | 3/23/2009 |
Q: i HAD THE OUTSIDE AC UNIT COVERED AND THE BREAKER A-OK OFF. uncovered THE UNIT, EVERYTHING WAS OFF, ...
A: If the unit has been powered off for a while then you can get some oil wash out. If the compressor ...
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| fan on outside a/c unit | 3/23/2009 |
Q: what is the cost of replacing a fan on the outside a/c unit, & coil was replaced one year ago, heat ...
A: I would 200-300 to replace the fan motor, assuming a standard type motor. As to why it will not ...
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| Rusted AC | 3/21/2009 |
Q: I have central ac and heating unit in my townhouse. The ac unit has "fried." The entire unit is ...
A: In FL, a unit that lasts 15 years is pretty good. Anywhere near the ocean and salt, that is a ...
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| good hvac company | 3/21/2009 |
Q: How can I choose a honest company for a hvac tune up? Just bought home and want it tuned up before ...
A: It can be concerning to get a good company to service your A/C. I would ask people you know. Check ...
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| Cental AC | 3/21/2009 |
Q: Hey Craig, I am in the process of having my AC replaced. After 2 estimates I am a bit ...
A: This is now possible for me to answer. You gave a correct term for the wrong part. The coil that ...
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| Nozzle line | 3/20/2009 |
Q: . i have a Riello Mectron M5. Apparently there was some sludge in the opil tank. the oil company ...
A: I am not surprised, nor concerned the service manager does not know the part number. He/she may not ...
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| Rheem Corsaire series Heating unit ignition problem | 3/20/2009 |
Q: We have a Rheem Corsaire series heating unit Model# RHS-80PJ07EAR01. The unit is approx 4-5yrs old. ...
A: If you are getting a pressure switch, the igniter will not glow and no gas will flow. The pressure ...
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| Compressor location | 3/20/2009 |
Q: Craig, I have a house with 2 HVAC systems (basement and second floor). Currently, the larger of the ...
A: There are limits to the distance a line set can be. The shorter the distance, the better off. I ...
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| Drain Qs! | 3/19/2009 |
Q: I have a 60TR AHU around the 50´s still working pretty good, but I doubt the drain is original cause ...
A: The unit needs a trap to drain. The key to the trap is the depth of it, not the length. A longer ...
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| hope you can help | 3/19/2009 |
Q: I AM WORKING ON A 20TON HEAT PUMP ITS A 2007MODLE AND PUT IN NEW COMPRESSOR AND REVERSING VALVE AND ...
A: You either melted the guts of the rev. valve when you installed it, there is a valve closed, or a ...
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| Commercial hvac sizing | 3/18/2009 |
Q: I know this needs to be calculated but am just looking for an opinion on the typical size found in ...
A: Oversizing will cause more problems then undersizing, but there is a fine line between the two. ...
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| Central AC Thermostat | 3/17/2009 |
Q: I have a Whirlpool package central air unit, possibly 15 to 30 years old. All model #'s are faded ...
A: As old as the unit is, with the controls of the time, I would lead towards a bad thermostat. Newer ...
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| heat pump | 3/17/2009 |
Q: is it likely that a 10 seer heat pump w/ electric emergency heat would cause a 2 person family ...
A: Wow...that sounds crazy! I do not think it is realistic to use that much, but it might be possible ...
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| Office buildings | 3/16/2009 |
Q: Is it true that office buildings don't really use their heating systems very much because they get ...
A: It really depends on where the building is, the condition of the building, size of the building, how ...
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| Forced Hot Air - Oil Fired | 3/16/2009 |
Q: ok, well here's my problem. I have 1 bedroom that only has 1 heat vent in it. This 1 heat vent ...
A: If there is not enough air entering the room, adding a return is no going to fix the problem. If ...
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| Heating unit not coming on automatically | 3/16/2009 |
Q: My heating unit does not come on when I set the thermostat to auto. If I set it to on it comes on ...
A: It could be one of few things...the control board inside the unit (if it even has one). sequencer, ...
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| AC fan cycles slow on off | 3/15/2009 |
Q: I have a Bryant central AC Unit #661CJ042. After a power surge our unit was not working properly. ...
A: Power surges can do a number of things to a unit. It may not look like anything is actually wrong. ...
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| compressor keeps running | 3/15/2009 |
Q: I have a Florida heatpump ground source pump & dump system. When the unit shuts down sometimes the ...
A: Any time there is discoloration, that is a sign that things are not making good contact and getting ...
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| Black Dust | 3/14/2009 |
Q: I rent an apartment where the vents are in the floor. After moving in, I noticed my lace curtains ...
A: The flex ducts have a plastic type of lining, with the fiberglass on the outside. There also has to ...
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| New Goodman coil smells | 3/14/2009 |
Q: We just had a coil replaced on our system -the minute it was put in and the unit started up it ...
A: From what you are saying, this seems odd. New coils will have some light oils and other things left ...
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| compressor keeps running | 3/13/2009 |
Q: I have a Florida heatpump ground source pump & dump system. When the unit shuts down sometimes the ...
A: A circuit board not flashing any problems, does not it is not fautly. My first guess would be a ...
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| Air Handler odor | 3/12/2009 |
Q: About 6 months ago we had to have the air handler coil pulled and chemically washed. The tech ...
A: Did the "cleaning" we had done in Aug 2008 cause "Dirty Socks Syndrome" by not properly being ...
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| Heating and air conditioning | 3/12/2009 |
Q: My local HVAC company is offering a free Lennox furnace (with $885 for installation0 if I buy a ...
A: There is nothing wrong with Lennox. If the price is right, I would install one. I am not sure what ...
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| AC on Heat Pump out - Heat works | 3/11/2009 |
Q: Question - Our heat pump's ac is out, but the heat works fine. Background - have had it charged ...
A: The "fix-it" crap does not work. They sell it at the auto parts store for cars also, which is only ...
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| Air Handler odor | 3/10/2009 |
Q: About 6 months ago we had to have the air handler coil pulled and chemically washed. The tech ...
A: It is not just Trane. The problem is common in all makes, models and sizes. If you read thought ...
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| dirty sock smell | 3/10/2009 |
Q: Last night we turned the air on to cool the house since it was in the upper 70s inside. My wife ...
A: It could be a dirty evap coil, but could also be the drain pan, drain line etc. It can also be in ...
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| Carrier Error Code | 3/8/2009 |
Q: I do not know what model Carrier I have, but i came home the other day and the thermostat read low ...
A: When the dog chewed the wires, they shorted out the control voltage fuse. The fuse is in the air ...
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| Air handlers | 3/8/2009 |
Q: I have a Trane air handler model # TWE087E18FB0 can I install in attic and lay this unit horizontal ...
A: Most of the air handlers Trane makes are concertable. Trane's website does not have manuals on it. ...
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| Odor present when a/c engages. | 3/7/2009 |
Q: Hey there, 4 years ago I had a 4 ton payne gas furnace and condenser installed in my house carrying ...
A: For one reason or another, some homes have more problems with the odor then others. The fact the ...
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| Covering grills | 3/6/2009 |
Q: We have floor registers where the heat/air comes out from the heating unit also there are registers ...
A: There can be some debate over this issue, but I will say that most homes do not have both high and ...
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| floor vents | 3/6/2009 |
Q: I am considering purchasing an entertainment center. It is wide enough to partially block two a/c ...
A: The size of the vent may not be a true indicator of the amount of air flowing. You can use the same ...
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| Emergency Switch | 3/6/2009 |
Q: During a second floor addition I had a new gas HVAC unit installed in attic which is accessed by ...
A: I am not quite sure what you mean by emergency turn off. Most, if not all, building codes require a ...
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| HVAC | 3/5/2009 |
Q: I just finished building a new elevated "Charleston" style home. We have 3600 square feet and two ...
A: The fact you have water coming from the unit tells me it was cooling instead of heating. This can ...
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| Radiator vent hole stripped | 3/4/2009 |
Q: This may not be in your line, but I'm hoping you might know something about it. Last night I tried ...
A: This is not looking too good for you. The "grooves" are called threads. There are different types ...
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| Trane XL1100 exterior unit | 3/4/2009 |
Q: While replacing the fan motor (bad sleeve bearings)on my 10 year old XL1100 (and the capacitors as ...
A: Most crankcase heaters can be changed. Compressors use a strap-on/belly band type or a well type. ...
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| Moving a floor register to a wall register | 3/3/2009 |
Q: The existing floor register is located in a walkway. The floor register is located about 4 inches ...
A: Without seeing where things need to go, I can not tell you what you need to do to move the grille. ...
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| Carrier Furnace Quesiton | 3/3/2009 |
Q: I came home today and heard a funny rattling noise coming from the furnace. The furnace was blowing ...
A: I believe you have a code 33...If I had your model number I could hunt down the info on your furnace ...
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| Bryant brand Condensing unit | 3/2/2009 |
Q: The outside condensing unit in question is a Bryant. The unit is heating the house, however the ...
A: Ok, just making sure. I have had this question and they did not have a heatpump. The fan needs to ...
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| how big of heater for my needs | 3/2/2009 |
Q: I have just finished building a cabin in the Colorado Rockies we are at an Elevation of approx. 7900 ...
A: Without doing a heat load, it is hard to say. I will tell you there are heating systems that do not ...
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| Gas Furnace - Burners have trouble starting up, sometimes causing a loud boom | 3/2/2009 |
Q: I have a 1994 Lennox Diplomat Gas furnace. Recently, I've heard it make a kind of a "boom" sound so ...
A: If the burners slide back into place, then that may not be the problem. The problem you are having ...
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| gas furnace ignition | 3/1/2009 |
Q: My gas furnace is not fully igniting. The glow plug lights, and the nearest burner ignites, but the ...
A: The problem can be low gas pressure, faulty valve, dirty orfices etc. Furnaces, for the most part, ...
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| LENNOX G40UH-36A-070-3 | 3/1/2009 |
Q: THE INDUCER FAN WILL NOT COME ON?? BLINKING LIGHT DIAGNOSTIC SAYS SOMETHING ABOUT A LIMIT SWITCH??
A: If you are getting a limit switch alarm, then the unit will not heat. Turn the power off to the ...
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| central ac in a townhouse | 3/1/2009 |
Q: I am currently renovating a 100 year old townhouse and adding central ac. I don't want to include ...
A: Not all bathrooms and walk-in closets have a/c supplied to them. You should be ok without. As I ...
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| Intake Vents in rooms in house | 2/28/2009 |
Q: We have forced hot air in my home and there are 2 vents in every room of the home. In most of the ...
A: Going back a few years ago, the gap under the door was considered enough return air. Any room that ...
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| Heatpump using electric strips | 2/27/2009 |
Q: I am using my Payne Heat Pump through its first winter. After the first 10 minutes of regular heat ...
A: In order for me to help you, I need the model number off of the t-stat and the unit. I need to try ...
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| RE : Suction Pipe Size | 2/27/2009 |
Q: I am trying to change existing Daikin Multi Split AC system ( R22 - 3 phase- Constant Speed ...
A: To start with, I do not know metric sizes. Larger then recommended suction lines can lead to oil ...
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| HEIL HEAT PUMP | 2/27/2009 |
Q: I aks for a advice about my HeatPump about 3 days ago I'm not a expert on hvac but I have some ...
A: If one probe is on ground, and the other is on the contactor term, you will only show 24v from the ...
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| Knocking coming from heat pump refrigerant lines | 2/26/2009 |
Q: I've copied in an old thread below as a reference, to a problem I'm having that's very similar. ...
A: As in any case, any condition beyond normal, can be harmful to equipment. If there is a change in ...
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| ruud heat pump condenser fan motor | 2/26/2009 |
Q: my heat pump condenser fan motor, Ruud, Achiever 14 series, froze up due to lack of grease ...
A: In the field it is common for to use aftermarket motors. I would be willing to bet they two motors ...
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| Knocking coming from heat pump refrigerant lines | 2/25/2009 |
Q: I've copied in an old thread below as a reference, to a problem I'm having that's very similar. ...
A: A line set for a given tonnage should be the same for any brand. It is going to require a certain ...
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| not enough air flow | 2/25/2009 |
Q: when turning heater on buners ignite and the vent blower to outside is on.The main blower to ...
A: If you have a cooling coil, that can get blocked causing air flow problems. You can also have a ...
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| ruud heat pump condenser fan motor | 2/25/2009 |
Q: my heat pump condenser fan motor, Ruud, Achiever 14 series, froze up due to lack of grease ...
A: The bushings in fractional HP motors do not use grease. They only use a light turbine type oil. ...
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| RUUD package unit | 2/24/2009 |
Q: I just bought a brand new package unit at my home. When outside, I noticed that there is a constant ...
A: The noise is likely coming from the transformer. It is normal for some noise to emit from it. ...
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| No air flow | 2/24/2009 |
Q: One vent in my house has no air flow. All others are OK. It is located in the room farthest away ...
A: If you have metal ducts, the knocking noise can be the air flow stopping. Metal will also expand ...
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| heil heat pump | 2/24/2009 |
Q: I had a heil unit, it was runing fine, but three weeks ago it star making a noise, I call a ...
A: Your unit was made the 19th week of 2002. It is about half way through the average life of a unit. ...
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| compressor shorted to ground | 2/24/2009 |
Q: would like to know reasons that this could happen on a unit that is only 6 months old. please ...
A: There are many reasons for a compressor to go to ground. It seems that in most cases, it is caused ...
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| Lennox Gas Furnace....Possible Gas Valve/Control Module Issue | 2/23/2009 |
Q: I've had this gas furnace system problem for awhile that I've luckily been able to manually ...
A: As a homeowner without great furnace knowledge, I think you really need to bite the bullet and call ...
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| A/C UNIT | 2/23/2009 |
Q: Hey Craig, I had few questions if you can help out. There is a guy on Craig List selling 3 ton York ...
A: You did not give me a price to consider. Like any contractor, be careful with who you are dealing ...
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| 19 yr old furnace & noise | 2/23/2009 |
Q: I am tentatively purchasing a home with a furnace in a closet in the hallway. There is no basement ...
A: A unit that is 19 years old, for the most part is old. It is time to replace. The 70% is really ...
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| Cleaning permanent air filter in Carrier Heat Pump system | 2/23/2009 |
Q: We have a permanent air filter in our system and I need to know how to clean it. Should I buy a ...
A: There are different types of filters, so I am not exactly sure what you have. Most perm filters can ...
|
| want to add heat and ac to attic for finishing | 2/22/2009 |
Q: I have an 85000 btu furnace with central air in my basement, the supply duct is 12x8 and the return ...
A: Considering the amount of space you are adding, you might need to up the size of your furnace and ...
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| One of my York units not heating one side of house | 2/22/2009 |
Q: I justed moved into a 3400sq ft home that has two large york HVAC units (one for one side of the ...
A: I am a bit confused. You stated that one of the units does not cool one side of the house. You ...
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| heating and air conditioning | 2/21/2009 |
Q: the display on my thermostat is not illuminated and the fan is running continuously.
A: If the t-stat uses batteries, then change them. If the stat uses power from the unit itself, then ...
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| Asbestos paper on heat ducts | 2/21/2009 |
Q: We need to replace my mother's 1950 Holland gravity furnace. The heater salesman said we could ...
A: No matter what form it is in asbestos is asbestos. It has to be removed following strict guidelines ...
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| Pressure switch HVAC | 2/20/2009 |
Q: Craig: I have a luxaire Acclimate 9.5 Series high efficiency natural gas furnace. The furnace sat ...
A: If you google search "furnace pressure switch picture", I had it bring up a few. It is a square or ...
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| High Efficiency Gas Furnace - smell plastic | 2/20/2009 |
Q: We recently had our Trane High Efficiency Gas Furnace repaired. First a professional replaced the ...
A: Any kind of odor is not a good thing. You might get something the first time heat is used for the ...
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| blower fan | 2/20/2009 |
Q: i have a 3 year old goodman 5 ton ac (outside) with a goodman 20 kw electric heat unit (inside). the ...
A: There is a difference in fans, so you need to know what kind you have. There are fans that are ...
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| Theremostat only shows up to 60 degree even I set it to 70 | 2/19/2009 |
Q: I am not sure if there is something wrong with my Air/Heat system in my house or not. I thought ...
A: Since you did not state that you were always too cold and the t-stat is saying 60, I was thinking ...
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| Theremostat only shows up to 60 degree even I set it to 70 | 2/19/2009 |
Q: I am not sure if there is something wrong with my Air/Heat system in my house or not. I thought ...
A: What I would do now is get an stand alone room thermometer. Any type will do. Place in areas ...
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| hvac HEATER ISSUES - followup | 2/19/2009 |
Q: I had a problem last week, and though i fixed it. (I replaced teh Intermittent Pilot Control ...
A: I actually had the same question with the same follow ups appear twice in my inbox. I then post a ...
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| Trane Intellipac unit | 2/19/2009 |
Q: I am responsible for approx. 30 Trane Intellipac rooftop units; 80-130 ton. Having intermittent ...
A: It sounds to me that when the dampers are closed, there is not enough building return, or the ...
|
| Rudd 90 plus gas furnace | 2/18/2009 |
Q: The unit is 3 1/2 years old and was serviced a month and a half ago. At the same time I added a ...
A: To me the whistle is caused by too much air trying to move though too small of a space. The coil ...
|
| Coils on forced air unit | 2/18/2009 |
Q: I am removing my forced air unit and was wondering if there was a certain way to drain the coolant ...
A: The refrigerant does not "drain". It can be pumped down into the condensing unit using the ...
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| hvac HEATER ISSUES | 2/17/2009 |
Q: I had a problem last week, and though i fixed it. (I replaced teh Intermittent Pilot Control ...
A: Try removing the hot wire (normally red) from the back of the stat and see if the fan stops. If that ...
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| home natural gas unit | 2/17/2009 |
Q: the unit isn't very old an started to cycle on an off many times before it lites,the air flow switch ...
A: I am not sure what kind of stat you have with a light...It could be a bad stat. Try turning the ...
|
| Blowers going but no heat from furnace | 2/16/2009 |
Q: Heil DC90 Ultra High Efficiency furnace is not generating heat. The blowers are going but no heat ...
A: Turning off the power might reset it. Unplug/turn off the breaker to see if it will reset. Your ...
|
| Furnace problem | 2/16/2009 |
Q: Last week I noticed that I have no heating in my house, I checked the thermostat, which is digital ...
A: Measure the voltage coming into the 24v transformer. It needs to be what the rated voltage of the ...
|
| Gas furnace blowing cold air | 2/16/2009 |
Q: Our 1970-somthing gas furnace has stopped working and just blows cold air. Could the pilot light be ...
A: If the thermostat is reading high, it might be the stat. Turn the stat as warm as it will go to see ...
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| blower/fan for heater | 2/15/2009 |
Q: there is very little air flow, heat, coming out of the vents. how can i adjust the fan speed? the ...
A: Not all units have speed adjustment. You did not give me a model number so I do not know what ...
|
| furnance | 2/15/2009 |
Q: furnance works sometimes but sometimes i have too take the cover off and hit the inducer fan switch ...
A: You could have a problem with the pressure switch, the lines that connect the switch, you may even ...
|
| hvac motherboard | 2/14/2009 |
Q: hey, how much should I be paying to change out a blown board? They started out at $684 and I got the ...
A: I have found the Internet pricing for the board to be $200-300. The prices do seem to vary. If you ...
|
| Heating/Conditioning Unit verses space in House | 2/14/2009 |
Q: I need to get a new gas/electric heating/air conditioning unit for my home. I have approx 1750 ...
A: The amount of space an a/c unit has to condition is the most important thing when sizing. There are ...
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| Thermostat | 2/13/2009 |
Q: Just got a house and the owner while moving out took the cover plate and controls but left the wall ...
A: You are going to have to buy a whole new t-stat. You are also going to have to find out what type ...
|
| Flame Sensor problem | 2/13/2009 |
Q: I have a Coleman Evcon T.H.E. 90 Model #2985E766 95,000 BTU furnace. Installed around 1992. In the ...
A: The flame sensor is there to see a flame. It does not open the gas valve. The flame sensor keeps ...
|
| Problem with my AC | 2/13/2009 |
Q: Then an hour or 2 my girl turn the A/C on cause i turn the heat on she turn on the A/C to get cool ...
A: The problem can be any number of the 24v control devices or wiring inside the unit (inside or ...
|
| Furnace Problem | 2/12/2009 |
Q: I have a Frigidaire Furnace and Honeywell TH8000 thermostat. The thermostat seems to cut out prior ...
A: If the room t-stat is cycling the unit off, cleaning the flame sensor is not going to help. You ...
|
| YORK GAS FURNACE NOT STAYING LIT??? | 2/12/2009 |
Q: YORK GAS FURNACE NOT STAYING LIT??? I have a York Stellar Plus Gas Furnace installed on March 18 ...
A: The problem could be a flame rollout. The flame rollout turns the unit off. A typical reason for ...
|
| one side of home not cooling as well as other side | 2/11/2009 |
Q: i have a 2yr old trane xli19 a/c unit that is in the attic, but mounted on one side of the home. so ...
A: Adding a return to the other side of the house is not going to do a bit of good unless the entire ...
|
| bleading propane lines | 2/11/2009 |
Q: I ran out of propane and my home now has air in all the lines. It is below freezing and I can't get ...
A: If you have an electronic start, let it go thought he cycle a few times. You might have to turn the ...
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| Home Heating Unit | 2/6/2009 |
Q: I have an Train unit in my home how do i know if I have a heat pump for heat? My air handler only ...
A: Some units (outside) have the word heatpump on them. The model number can be looked up. If your ...
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| payne heat pump | 2/5/2009 |
Q: I have a new payne heat pump unit.Sometimes when the heater is on and the outside unit is ...
A: The results of what you are seeing is defrost. It sound though the defrost is just not staying on ...
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| Thermostat Placement | 2/5/2009 |
Q: IS against natural gas code to place a heating unit thermostat on an outside wall.In Ontario Canada ...
A: I do not know about the issue of code, but placing a t-stat on any wall that can be affected by ...
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| New Unit Not blowing through vents. | 2/5/2009 |
Q: I had a new Ac/Heater unit installed on top of my roof last month. The heater works great. Blows ...
A: When you say A/C, I am guessing cooling. It might be possible the unit froze up. Turning the ...
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| Payne furnace | 2/5/2009 |
Q: I have a Payne heater, gas, model pg8uaa, up-flow , I would like to know how to turn on the blower ...
A: I have worked on Payne, and your unit from what I can figure is new enough to have the fan on wiring ...
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| hvac shuting off randomly | 2/4/2009 |
Q: My gas hvac unit is causing problems. It seemed to start with the flame sensor not catching. The ...
A: Normally the main fan is off until a predetermined point in time after the flame is lights. This ...
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| Payne furnace | 2/4/2009 |
Q: I have a Payne heater, gas, model pg8uaa, up-flow , I would like to know how to turn on the blower ...
A: I am guessing that your t-stat has a fan switch, but only two wires from the furnace. This is also a ...
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| buying a new heating and air system | 2/3/2009 |
Q: We are buying a new 3 ton system for our house. We have quotes on systems from American Standard ...
A: Both brands are good. American Standard is a Trane for the most part. Ruud, also makes good units. ...
|
| Trane XE1200 Heat Pump | 2/3/2009 |
Q: I have a Trane XE1200 heat pump and the condensing unit will not come on.
A: Check the breakers for the cond. unit. Turning them on and off might reset the unit and get things ...
|
| Screw Hit & Emptied Copper AC Line | 2/3/2009 |
Q: refrigerant line emptied in basement. Question- I would like to close the ceiling and finish my ...
A: You do not have to wait...The line can be fixed, and using nitrogen, the line set can be pressurized ...
|
| 2001 American Standard electric heat pump unit | 2/1/2009 |
Q: The unit is on "auxiliary" (heat strips) until the temperature outside reaches about 55. Have had ...
A: The problem could be an outdoor thermostat that is keeping the heatpump off and the strips on. It ...
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| A/C low temp setting | 2/1/2009 |
Q: We recently moved from St. Louis to northern FL and this is our first experience with a heat pump/AC ...
A: You were luckly the old you did not freeze up. Because of the way units work and the pressures they ...
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| Condensation Pump Options | 2/1/2009 |
Q: Craig --we have a 3yr old Trane heatpump with a TWE031E13FB1 air-handler. The front of the air ...
A: There are condensate pumps out there that will fit directly in a drain pan, however they will not ...
|
| Heater problem | 1/31/2009 |
Q: I have central air/heat system(gas) on my roof.The heater comes on when it wants to. I have followed ...
A: In order to find out what is happening, a meter is going to have to use to check the point where ...
|
| freezing outside Trane Unit | 1/30/2009 |
Q: The Trane unit on the outside of the house freezes up all the time. I have a 1500 sq.ft. ranch with ...
A: The freezing and noise is normal. The amount of ice that builds will depend on indoor temp, outdoor ...
|
| pressures | 1/30/2009 |
Q: R410 pressures are 95 low side high side 360,the elevation here is 2515 ft,does elevation have any ...
A: If the gauges are calibrated for the elevation, then you should not see much of a difference. The ...
|
| Location of filters | 1/30/2009 |
Q: We have a honeywell whole house filter at the furnace and a contractor is recommending that we ...
A: No matter what you do, dust will get into the system. How long will depend on how much dust, how ...
|
| home warrenty on heat pump | 1/29/2009 |
Q: We bought a home in Central Texas with an existing 11 year old heat pump/air handler (5 ton unit). ...
A: I would say 15 years is the average. Once a heatpump starts to get over the 10-12 mark, I look at ...
|
| ruud achiever heat pump | 1/29/2009 |
Q: I built my new home in 2005 i hired another contractor to design and install the heating system due ...
A: I think an air source heatpump is a poor choice for the primary heat in Maryland. It works great ...
|
| Lennox HVAC | 1/29/2009 |
Q: I just installed (less than 6 months) a new Lennox HVAC a/c system. When the a/c comes on it smells ...
A: Yes, this can happen. The coil and inside the air handler is nice wet, dark, cool place were stuff ...
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| Return vent pipe makes lots of noise | 1/28/2009 |
Q: Can you please tell me what can I do to reduce noise in my return pipe vent located on second floor. ...
A: Noise can be cause by different things in a system. Insulation the pipe could be the answer to your ...
|
| Traps and solder | 1/28/2009 |
Q: I have two questions. I live on the sixth floor of a two and a half year old condo. The HVAC units ...
A: All solder and metal for that matter, will tarnish to a degree at some point in time. "I" prefer ...
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| Heating with a new high Efficiency Furnace | 1/28/2009 |
Q: I have a 24 year old home with an old 70% Lennox Furnace. I have been told it is time to replace it ...
A: Each furnace is designed with a given temp rise. I do not know what you have now, and what you ...
|
| Traps and solder | 1/28/2009 |
Q: I have two questions. I live on the sixth floor of a two and a half year old condo. The HVAC units ...
A: There can be quite a bit of cost difference, when you consider the amount. The 15% stuff is 15% ...
|
| Heat Pump Abnormal Pressures in Heat mode | 1/27/2009 |
Q: I'm an a/c technician (over 10 yrs exp) and currently work as a tech support tech--over the ...
A: If there was a restriction in the metering device in the cond unit for heating mode, then the suct. ...
|
| Traps and solder | 1/27/2009 |
Q: I have two questions. I live on the sixth floor of a two and a half year old condo. The HVAC units ...
A: Although I can not say for sure, I believe most building codes require they solder that is uses to ...
|
| lowering heat bill | 1/26/2009 |
Q: If I open a window in a room of my house which is not the room where my thermostat is will my heater ...
A: You will not get more heat. You will use more gas/oil so the boiler can keep the water leaving the ...
|
| HVAC - Am Std. 90% efficiency unit question | 1/25/2009 |
Q: Greetings, I have two Am. Std 90% efficiency units - installed mid2007. The in/out pvc pipes were ...
A: The smaller blower can be called, exhust, combustion air or induced draft fan. I have heard them ...
|
| lowering heat bill | 1/25/2009 |
Q: If I open a window in a room of my house which is not the room where my thermostat is will my heater ...
A: You really lost me. Anytime you open a window or door, you allow more cold air get in. The room ...
|
| gas furnace | 1/24/2009 |
Q: i have a lennox model g21q3 that will not kick back on after the temperature setting is met. have to ...
A: Copy and paste this link...."http://hvacpartsshop.net/G21_Series.pdf" It is the directions for your ...
|
| Gas Valve | 1/24/2009 |
Q: My 18 year old Kennmore warm air gas furnace's original gas valve was a Honeywell VR8440P2088. ...
A: The 3.5" W.C. on the furnace is the max pressure the furnace is designed to work with. It may or ...
|
| Fan Coil Unit | 1/23/2009 |
Q: i recently moved into a condominium and just this past week my coil burst and hot water came pouring ...
A: It might be possible to freeze up a coil, but only if your whole condo turned into a freezer with ...
|
| Luixaire acclimate 97% efficieny series 9.c | 1/22/2009 |
Q: New unit, been having 7 red flashes error code today, this happened a month ago and then stopped now ...
A: Nomally there is something inside the unit that will tell you what the flashes mean. I do not know ...
|
| Bryant gas furnace | 1/22/2009 |
Q: I have a Bryant gas furnace that is 8 years old. Never had any problems previously. When ...
A: I am guessing that the unit comustion gas fan does not start and stop with the t-stat removed. If ...
|
| Reworking | 1/22/2009 |
Q: My goal is to improve the efficiency of my HVAC system by eliminating unnecessary ductwork. ...
A: The installation directions will tell you how far you have to leave anything away from the unit. ...
|
| central heat | 1/21/2009 |
Q: what do i need to check when my electric central heater runs almost constantly?
A: Taking an amp draw of the heat strips, will tell if they are working to full amps. Changing the ...
|
| Moisture in duct work | 1/21/2009 |
Q: I have moisture in my duct work for my a/c - heat that is ran though my attic space and vented ...
A: Close off all of the vents and see if that help. Leaving the fan running helps, you might even be ...
|
| undersized system? | 1/19/2009 |
Q: Will 3 ton heat pump system that also has a zone system on it be enough to cool a 2100 square foot ...
A: There are heat load calc. that can be done to determine how big of a unit you need. Generally ...
|
| heater smells when it defrosts | 1/19/2009 |
Q: We have a miller a/ac heat pump unit. we just got it this past summer 2008 so this is our first ...
A: The cause is likly due to the heat strips. The heat strips come into play when the heatpump goes ...
|
| rheem gas furnace mod rgka-10eags | 1/18/2009 |
Q: the blower motor stays on,hooking only the 24 volt transformer leads up the blower relay still kicks ...
A: I do not have any wiring diagrams. It should be pasted inside the unit. If not there, then ...
|
| Noise from airflow. | 1/17/2009 |
Q: This question pertains to an A/C problem at my place of work. About 6 months ago, I started to have ...
A: The box is a VAV box (variable air volume). They tend to get noisy when they are completly open, ...
|
| Heat pump | 1/16/2009 |
Q: At what temp. should I switch my maytag 2.5 ton unit to emer. heat?
A: Once the temp starts to get to the mid 30's, most heatpumps start to loose heating capacity. You ...
|
| Heating - Townhouse | 1/14/2009 |
Q: I'm living in a townhouse where there is only one unit downstairs. It seems the heat has to be on ...
A: The fact you have one unit, may not be the problem. There are limits to how much a unit is able to ...
|
| Arkla Gas Furnace | 1/14/2009 |
Q: The motor for the blower fried, it was so hot it burnt the specs which were attached to it. The ...
A: I have never heard of the brand. I would take the motor to a local motor shop. They should be able ...
|
| Gas forced air furnace | 1/12/2009 |
Q: I have a conquest 90 gas forced air furnace (installed '04). I had the furnace inspected in ...
A: Your furnace probably has a circuit board with a trouble light. A LED will flash on the board a ...
|
| a/c compressor cover | 1/12/2009 |
Q: This has been asked before but there was not an acceptable answer. I have a Carrier 2 1/2 ton R410 ...
A: It can be purchased from Carrier, if Carrier will sell it. Carrier sells parts under "Totaline", ...
|
| hvac | 1/12/2009 |
Q: ANSWER: Is the unit a straight heat, or does it also cool in the summer? ---------- FOLLOW-UP ...
A: This is not an impossible problem, but because it cools too, it is not as easy as it could be. ...
|
| heat component not working | 1/11/2009 |
Q: I have electric ac and gas heat and the unit is located outside. When set to ac/auto the fan will ...
A: There can be many reasons for gas heat to not work. Turning the power off and then back on to the ...
|
| Circuit Breaker trip | 1/11/2009 |
Q: I originally asked same question to Electrician and I want to confirm this with you. My problem ...
A: Before anything is replaced, the amp draw of the heat needs to be checked. You also need to check ...
|
| Furnace dusty smell and noisy air return | 1/10/2009 |
Q: I have a fairly new house/HVAC system, built in 2000. The house is two stories 2500 sq ft, and the ...
A: The noise is due to the size, and not the length of run. The return opening is probably too small. ...
|
| Pilot Failure | 1/9/2009 |
Q: I have a Kennmore gas fired warm air furnace 867.768031 which is about 18 years old. It has an ...
A: It could be a gas valve problem. If it is hanging up once in a while, then it may not open. It ...
|
| Thermostat | 1/8/2009 |
Q: I have in floor radiant heat that is controlled by "WR 1f35-910" themostats. I would like to ...
A: Picking out a brand for you is not really an issue. You will just have to hunt around to see what ...
|
| Thermostat | 1/7/2009 |
Q: I replaced an older thermostat which had 2 mercury bulbs with a Hunter programmable one. My problem ...
A: The problem may not be the thermostat, but rather the way it was programmed/installed or the way the ...
|
| car exhaust smell in one room | 1/7/2009 |
Q: The last few days I have noticed an odor that smells like car exhaust in my daughter's room. It ...
A: The odor can be caused by any number of things. This can include mold/mildew. Mold/mildew can make ...
|
| Pellet stove | 1/6/2009 |
Q: We recently had a pellet stove installed in our finished basement. Does a very excellent job. What ...
A: I would use a round duct booster fan. They come in different sizes, and should be quiet and safe to ...
|
| Mobile home heat pump replacement | 1/6/2009 |
Q: I have three estimates from Rheem contractors to replace the 15-year-old heat pump in my ...
A: According my calculations you need an 18" return duct. You want to keep the fpm to no more then ...
|
| Goodman Draft Induction Fan Keeps Cycling On and Off | 1/6/2009 |
Q: Here is my situation: I have a Goodman (gulp) gaspack Model PGB042125-1 that is approximately 8 ...
A: The problem can be the board, thermostat or short. If there is a short in the wiring, that can ...
|
| Comfort heat pump | 1/6/2009 |
Q: The electric was turned off for this house for about 1 1/2 years and turned on for the first time ...
A: This may not be what you want to hear, but I think you should have the united checked. When things ...
|
| HVAC Power Supply | 12/20/2008 |
Q: Before retiring to Santa Cruz Bolivia I purchased 5 Amcor split air condition units. At the time I ...
A: I have never had to deal with this issue myself. Although I find it common that motors will have a ...
|
| no heat | 12/19/2008 |
Q: I have carrier 90+ gas furnace that won't start.I'm getting the error code #13. If I let the unit ...
A: As you may not may not know, the code is for high limit or rollout. I am going to aim more towards ...
|
| Carrier gas heat unit blowing but not lighting/heating | 12/18/2008 |
Q: I have a 15 year old Carrier combo gas heat/AC unit (48NT) outside my house. My thermostat is a ...
A: From your description I am going to guess you have a combustion fan in your unit, and also the main ...
|
| Presure Switch | 12/18/2008 |
Q: I own a Nordyne electric furnace kg6rc 080c 16b The led on the control pannel says that the ...
A: The pressure switch can be ordered from any of the numerous websites out there that sell parts. The ...
|
| thermocouple/pilot light | 12/17/2008 |
Q: I was asked by a friend if I could replace a thermocouple in a wall furnace. I went over to see what ...
A: The knob in the pilot position allows the gas to flow to the pilot to light the pilot and give the ...
|
| Furnace Blower Motor not working | 12/17/2008 |
Q: My wife and I are looking at buying a new house. The house was built in 2005 and has a 90% efficient ...
A: WOW, in this crappy housing market, they will not fix the motor to sell their house to you! Here ...
|
| Furnace has excessive condensate buildup | 12/16/2008 |
Q: I have a 12 year old 90-plus efficiency Day&Night furnace (MAV250) that recently stopped blowing ...
A: Brushing and using a vac is the best way to clean off the burners. You may not actually be able to ...
|
| heating | 12/16/2008 |
Q: We have a newer two story home, but half of the 'second story' is a vaulted ceiling from the first ...
A: Closing off the vents it not going to help, and could cause damage to the furnace. It is hard to ...
|
| American Standard - Can I reduce the amount of coils being used. | 12/16/2008 |
Q: I have an 2005 American Standard TWE031E13FB1 electric furnace. We replaced a fuel oil furnace for ...
A: Even with the high cost of oil, elect heat strips are NOT the way to go. That is probably one of ...
|
| Carrier Furnace no heat | 12/15/2008 |
Q: I have a Carrier 58SXA060 furnace, occasionally the thermostat calls for heat but the furnace locks ...
A: It is possible the problem is with the gas valve. The can be hanging up causing the problem. I ...
|
| Carrier Furnace no heat | 12/15/2008 |
Q: I have a Carrier 58SXA060 furnace, occasionally the thermostat calls for heat but the furnace locks ...
A: It is hard to say what is locking it out. It could be any number of the safties build in to the ...
|
| bard heat pump | 12/15/2008 |
Q: stat shows fault on display. ive turned off power for 5 min and anything else the owners manuels ...
A: If you turned off the power to reset, then it can be a number of things. It could be a saftey that ...
|
| heat pump thermostat | 12/14/2008 |
Q: I had a power outage in my house today. Not sure how long it lasted, but I called it in to the power ...
A: When the power is off to the unit, that should turn off the thermostat. If it does not, then you ...
|
| Cond. Unit Fan | 12/13/2008 |
Q: After replacing a bad Defrost board on my Rheem/Ruud/Weatherking model # 10PJA4201 Heat Pump the FAN ...
A: Ok, just wanted to make sure. My feeling is the run cap is weak. Using a piece of wood or plastic, ...
|
| Cond. Unit Fan | 12/13/2008 |
Q: After replacing a bad Defrost board on my Rheem/Ruud/Weatherking model # 10PJA4201 Heat Pump the FAN ...
A: What all did you do to the unit when you replaced the board. How many wires, and where did you ...
|
| Luxaire heat pump | 12/13/2008 |
Q: I have a luxaire heat pump installed 2 years ago. It runs good in cooling but when it is in the ...
A: Without getting my hands on the unit, it seems like the rev. valve is not hanging up or a check ...
|
| Heater Not working with panel on | 12/12/2008 |
Q: I have a roof GE HVAC, it woked ok last year, this year I had to replace the thermostat. The problem ...
A: The unit looks like a heat and cool unit. The problem can be a blocked cooling coil. Looking at ...
|
| Dual Zone or No Dual Zone | 12/12/2008 |
Q: Attached are some pics of the AC/Forced air unit at my two story, 2700sqft house. I'm paying a huge ...
A: Considering it is more then 20 years old, the unit has probably seen its better days. You should ...
|
| Health problems with HVAC cleaning solutions | 12/11/2008 |
Q: Do you get many questions concerning health problems after an HVAC system is cleaned? Friends tell ...
A: No, not really. Most problems occur before units are cleaned. There are cleaners on the market ...
|
| heater | 12/11/2008 |
Q: I turned on my upstairs heater and I heard the thermostat click and I heard the heater in the attic ...
A: Since you did not give me any info on the unit, it is hard for me to determine what it might be. ...
|
| steam pipe too hot | 12/10/2008 |
Q: The steam pipes, which run from floor to ceiling in each room, are ugly and give off way too much ...
A: There is pipe insulation on the market that pretty much blocks all heat from getting off the pipe. ...
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| Heat pump air unit | 12/10/2008 |
Q: I just recently turned on my heat and it was snowing last night so the high was 20 degrees. The bad ...
A: For the most part, heatpumps have a limit to which they will work well. The cooler it gets outdoors ...
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| Oil Filled Portable Radiator | 12/9/2008 |
Q: Was referred to H/AC section by another section expert. If this is not the right section, would you ...
A: I went looking at the manufacture's website. I am not sure what you you have, but did look at other ...
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| air ducting | 12/9/2008 |
Q: Jim, My problem is that in heating my second floor, I over heat the first. I am in MA. The house is ...
A: You are going to continue to have problems with this system until it is designed, installed, and ...
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| heat | 12/7/2008 |
Q: i had programmable thermostat installed honeywell th8000 visionpro i live in a double wide and have ...
A: The wait is there to protect the compressor. If the unit was running, turned off and back on too ...
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| Furnace Efficiency | 12/7/2008 |
Q: I have a Janitrol/Goodman Furnace. Model # GMP075-4 REV B. It has a AFUE of 80%. Here recently i ...
A: It is normal to see moisture coming out of the flue. Water vapor is one of the by-products of ...
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| HVAC | 12/6/2008 |
Q: We have two heating zones in our home. Upstairs and downstairs. They have two separate thermostats. ...
A: The problem can be in the t-stat or the unit. If you take the wires from the back of the stat and ...
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| blower moter | 12/6/2008 |
Q: If yuo have a york ac unit do you have to use a york blower moter or can you use another brand
A: If the motor is a normal frame size, hp and rpm, then you can use a generic motor. Sometimes ...
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| Pressure Switch Rheem Furnace | 12/5/2008 |
Q: Craig, At times, mainly when the furnace is turned down at night, the heat will not kick on. The ...
A: The pressure switch can not be clean. You can attempt to clean out the tubes that connect the ...
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| har to heat space | 12/4/2008 |
Q: I live in an old water treatment plant which means empty spaces made by large concrete "tanks" under ...
A: The size of the unit can be a factor along with the floor. In the long run, it will be cheaper to ...
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| rheem heat pump humming loudly | 12/3/2008 |
Q: my hr\eat pump is humming loudly ive replaced the contacter and the capacitor on outside unit heat ...
A: The hum could be the rev. valve sol. Some cond. units have a transformer in them as well. If you ...
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| Fan not spooling up | 12/3/2008 |
Q: I have a Bryant AC system about four or five years old, model number of the air handler is ...
A: Before you start doing anything yourself, you need to determine if the unit is under warranty. You ...
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| Arcoair Furnace | 11/26/2008 |
Q: My furnace quit working, the transformer went bad I thought becouse I had no power going thru it. I ...
A: The new valve might be bad, I have seen it happen before. You need to make sure the coil for the ...
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| Carrier 58PAV short cycling | 11/25/2008 |
Q: I am a novice and will try to explain what is going on and see if you can help me out. I just bought ...
A: You should be able to touch the motor without burning yourself. A motor that is too hot is a sign ...
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| mold growing on wall adjacent to the fridge | 11/25/2008 |
Q: I have purchased a new Amana refrigerator in October, and already I had to clean mold forming to ...
A: My first thought...The doors on the old fridge use to stop the cold air from hitting the wall. The ...
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| Carrier 58PAV short cycling | 11/24/2008 |
Q: I am a novice and will try to explain what is going on and see if you can help me out. I just bought ...
A: Your furnace has two fans..one we call the combustion fan, and the other the blower wheel. If the ...
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| Rheem furnace, pilot light / flame sensor problem | 11/24/2008 |
Q: Rheem furnace, pilot light / flame sensor problem. Model RRGE-05E30JKR Flame sensor does not heat ...
A: Using that propane torch is a good way to blow you, your neighbors and your home up. The pilot ...
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| Good vent air flow but not hot enough/Trane HVAXC 3.5ton system | 11/24/2008 |
Q: I have a Trane (outdoor) HVAC 3.5 ton gas system. Air flow seems good, but temp of heat isn't much. ...
A: The model number does not tell me the age of the unit. I can not tell you if you should replace the ...
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| Return air efficiency | 11/24/2008 |
Q: "I, myself, recently install a new high efficiency heat pump with a gas high efficiency backup ...
A: You stated you noticed a large amount of air moving, but you did not say if it coming though the ...
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| Rheem heat pump | 11/22/2008 |
Q: Our heat pump when working in the winter, and only in the cold mornings, will run for a while, quit, ...
A: The problem can be a number of things. The problem can be a board, low on charge, elect problems, ...
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| Air Conditioning system Rattle | 11/22/2008 |
Q: My heating and air system has an air intake/filter located about 4 feet below the ceiling. If I use ...
A: You might need to increase the size of the filter grille. The more surface area, the slower the air ...
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| florida heat pump | 11/21/2008 |
Q: I have an older a/c system here in Fla. I have an outside compressor and an attic air handler. When ...
A: When heating using heappump mode, and not em. heat, the compressor should be running. There are ...
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| Rheem Criterion Furnace ignitor not glowing | 11/20/2008 |
Q: I have a Rheem gas furnace, 1999 model. Last year it worked fine, now it will not. When I kick the ...
A: Since, what I believe you described is the combustion fan, is running, then the pressure which is ...
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| Carrier central air conditioning blower motor noise | 11/20/2008 |
Q: Upstairs attic unit Horzontal unit. when I turn the fan only switch I hear a rattling grinding ...
A: When power is applied to a motor it causes forces on the motor that are not there when it is free ...
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| furnace filter never gets dirty | 11/19/2008 |
Q: I'm puzzled why my furnace/central air filter on my forced air system never gets dirty. I have ...
A: If the filter is installed in the air stream, then you may just have a clean house. There really is ...
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| heating | 11/19/2008 |
Q: I am a service tech for an apartment complex and want to know what is typically wrong when the ...
A: Unfortantlly there is nothing typical. Stuck contactors and shorted, melted, loose, burned wiring ...
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| gas furnace | 11/19/2008 |
Q: this is the sequence of my gas furnance,turn on t-stat,flame comes on ,fan does not come on until ...
A: You did mot give me much to work with. I would start off by saying the t-stat (inside the unit) is ...
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| gas furnace | 11/18/2008 |
Q: I asked you yesterday about a flame sensor. Well that was not the problem. Once I got the cover off ...
A: Since the controller is not indicating a problem, they is could be the control board. They can do ...
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| Air FIlter Installation | 11/18/2008 |
Q: I recently purchased a new home (for me) and replaced the air filters in the air handler. When I ...
A: The arrow is the direction of air flow. The arrow should point towards the air handler. Some ...
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| air conditioning release of water through hose | 11/18/2008 |
Q: I am renovating my basement in doing so the release hose cannot be run towards the drain. I hear ...
A: You need a condensate pump. They are easy to install, just a little bit of pipe and run the hose. ...
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| Issue with home heater | 11/17/2008 |
Q: Several years ago I had an outside fan motor replaced and a relay unit on the inside replaced. (I ...
A: That device in the picture is called a sequencer. If you have a multi-speed motor, the unit can use ...
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| American Standard Freedom 80 | 11/17/2008 |
Q: I have a 12 year old American Standard Freedom 80 Furnace. Tonight it started to act up. The igniter ...
A: The most likely problem is the flame sensor. It might just need a bit of cleaning or replacement. ...
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| Armstrong Air Handler | 11/17/2008 |
Q: We put air handler in last yesr. I can not locate the paper work and need the wiring digram. We ...
A: Since your cond. unit will work in cool, it seems kind of strange that it will not come on in heat. ...
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| Looking for the filter | 11/15/2008 |
Q: I have a Janitrol furnace in my home (model # GDE 080-4 Rev S) and I am looking for the filter. I ...
A: Not all units have a filter built into them. If you were to remove the front covers, if there is a ...
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| AC Outside unit Motor screetching | 11/15/2008 |
Q: 2 of my 4 AC cap nuts broke off and top 1/2" of motor mounts broke off also. Motor mounts were about ...
A: In my experience, when this happens it is because the motor and fan blade need to be replaced. The ...
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| hot water furnance / pressure | 11/15/2008 |
Q: I have a chromolox hot water furnance and my question is this - my thermostat is basically off (set ...
A: Yeap, that sounds like what you are looking for. The first valve is a pressure reducing valve, and ...
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| Knocking noise from Heat/Air compressor unit | 11/15/2008 |
Q: I live in a apartment where the compressor unit (electric) is directly above the roof and whenever I ...
A: The problem sounds like a fan. It could be dirty, loose, something sticking though the guard, out ...
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| hot water furnance / pressure | 11/14/2008 |
Q: I have a chromolox hot water furnance and my question is this - my thermostat is basically off (set ...
A: Most if not all, closed loop systems have a water makeup valve. The valve takes city pressure and ...
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| Thermostat hook up | 11/14/2008 |
Q: Craig,I have a new stat T-87, A new air handler with a new outside AC unit, That I hooked up to my ...
A: They Y from the t-stat (yellow is common color wire) goes directly to the cond. unit. It does not ...
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| whirlpool furnace m/#WFAUO75B16_1B | 11/14/2008 |
Q: ITS A RESIDENTIAL ELECTRIC IGNITED(NORTON IGNITER) GAS FURNACE THAT WE GET 7(SEVEN) FLASHES ON THE ...
A: Since you appear to be getting no flame, there is a gas problem. You need to check that the gas is ...
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| Furnace flow of air | 11/13/2008 |
Q: My return duct seems smaller than the output duct. How is this affecting my cycles/ gas ...
A: "My return duct seems smaller than the output duct. How is this affecting my cycles/ gas ...
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| Thermostat hook up | 11/13/2008 |
Q: Craig,I have a new stat T-87, A new air handler with a new outside AC unit, That I hooked up to my ...
A: Do you have a furnace and an air handler feeding into a common duct? You do not may not need a Y ...
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| Heating unit problem | 11/12/2008 |
Q: I have a problem with my heating unit. It is a residential unit that runs on gas and controlled by ...
A: Does the fan work if you just wet the fan to "on"? You might need to set the t-stat to "electric ...
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| Coleman floor furnace | 11/11/2008 |
Q: I have an old Coleman floor furnace. The thermocouple is several years old and I assume it works ...
A: This problem can be a few things... Dirty jets, faulty valve, low gas pressure, bad gas pressure ...
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| over heated compressor, | 11/11/2008 |
Q: hey craig, maybe you can help. hotels kitchen has a kairak prep table> model# KRP 89S.( three door ...
A: The compressor is overheating AFTER it shuts down? If that is the case, I would look to see if ...
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| Lennox Heater | 11/10/2008 |
Q: My lennox heater is about 20 years old. It works great but right now it just started making a loud ...
A: The problem can be a bad relay or contactor or the fan/motor. A fan motor that has a weak run cap, ...
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| HVAC flexible branch duct | 11/10/2008 |
Q: recently questioned by customer about the length of supply branch duct ran off main trunk line by my ...
A: A trunk line really has not limit, and I would not use more then a box for a branch line (25 ft.) ...
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| Fan doesn't run on "Auto" | 11/9/2008 |
Q: We have a 2 yr old Amana AMS95 furnace and yesterday the house was not staying warm. I discovered ...
A: Since it appears to be working ok otherwise, I would have to guess the control board is the problem. ...
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| Adding On Additional Duct Work In Unfinished Basement | 11/9/2008 |
Q: I was curious here on a few things I have questions about concerning adding on duct work for my ...
A: If you are trying to cool/heat more space with the unit, it may not be big enough. The unit is ...
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| Motorized Damper Question | 11/9/2008 |
Q: I was curious to know why it appears that when activating my heat in the basement.. I still feel ...
A: If there is no damper installed in the return, then there will also be air moving though the return. ...
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| Trane XE 90 Blower Won't Run | 11/7/2008 |
Q: My Trane XE90 TUX060c936c blower motor will not run. When I turn on the Heat/Air, everything starts ...
A: If you set the meter to ac volts, and have the scale set high enough to cover the voltage you have. ...
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| Condensation on large pvc pipes connected to heater | 11/7/2008 |
Q: We don't use air conditioning here in the mountains, and wonder why there is condensation at the ...
A: Moisture is a by-product of combustion. There is where the water is coming from. Sealing the pipes ...
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| Trane XE 90 Blower Won't Run | 11/7/2008 |
Q: My Trane XE90 TUX060c936c blower motor will not run. When I turn on the Heat/Air, everything starts ...
A: The lights do not also flash when there is a problem. It can not detect all problems. You are ...
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| Determing Furnance Tonnage and BTU | 11/7/2008 |
Q: I bought an old house that had a one year old furnance (ng) and a/c compressor (3 ton). We removed ...
A: This is the link for the bood on Carrier's site. ...
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| Lennox Furnace G27M Series – Unreliable operation: pressure switch or else? | 11/6/2008 |
Q: I own a Lennox G27M3-75A-2 two stage furnace and have the following question. The furnace has been ...
A: I found this in the owners guide..."The motor operates during all heating operation and is ...
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| heating and air | 11/6/2008 |
Q: I put in a new condenser fan this summer(aftermarket) from Grainger...when i did it had 4 wires ...
A: The problem is not the fan. Do you know if you have a heatpump? When in heat does the air coming ...
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| HVAC rattling noises | 11/5/2008 |
Q: My heating (oil) system just started turning on for the year and I have identified two different ...
A: It may or may not be a problem. It could be just some loose screws that need to be tightened. It ...
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| cracked heat exchange | 11/4/2008 |
Q: so they shut them all down and said they were pumping co2 in my warehouse they said one was so bad ...
A: I would not run the units, cracked heat exhangers are not a good thing. If you are going to run ...
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| colman furnace | 11/4/2008 |
Q: I have a coleman hot air furnace. It starts up goes through it's sequence everthing goes ok then ...
A: If the unit has a control board, it might give you some clues. The problem sounds like the heat ...
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| Condensation in insulated air conditioning ducts | 11/2/2008 |
Q: I have found moisture build up in my flexible, insulated air conditioning ducts in my crawl space. I ...
A: Well, I guess it will work for now. You need need to get the ducts replaced. The water will never ...
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| American Standard heat/air unit | 11/2/2008 |
Q: We have an American Standard heat/air unit. It is run by propane. We are trying to start it to ...
A: Sounds like cleaning/loose wiring did the trick. Not all control boards have can flash when there ...
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| troubleshoot apartment central heat/air | 11/1/2008 |
Q: Craig, I live in the end apartment in my complex and the central heat/air units are right outside my ...
A: Without me hearing the noise, it is hard for me to say what it is. It could be refergeriant ...
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| American Standard heat/air unit | 11/1/2008 |
Q: We have an American Standard heat/air unit. It is run by propane. We are trying to start it to ...
A: The furnace likly has a control board with blinking led lights. The board will flash it is has a ...
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| Central Air Removal | 11/1/2008 |
Q: I just bought a house and want to take the central air conditioner unit out of my old house and put ...
A: It should not take all that long to pumpdown and disconnect the unit. I think no more $200 or so ...
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| TAKING TEMPERATURE AND PRESSURE READINGS | 11/1/2008 |
Q: CRAIG:IM WORKING ON A 3 TON CONDENSING UNIT.IVE BEEN TOLD UNIT HAVENT BEEN SERVICED FOR MORE THAN ...
A: If the ports do not have the shrader, then it is likly a valve. It should require the use of a ...
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| Freon coils | 10/31/2008 |
Q: I was fastening a cellular antenna to a roof mounted A/C unit. I ran a tek-screw into the copper ...
A: This is not an automatic replace here. If the hole is in a spot where it can be worked, type of ...
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| Central Air Removal | 10/31/2008 |
Q: I just bought a house and want to take the central air conditioner unit out of my old house and put ...
A: If the cond unit has service valves, it might possible to pump down the system. This is not a job ...
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| Heating unit problem | 10/31/2008 |
Q: I have a problem with my heating unit. It is a residential unit that runs on gas and controlled by ...
A: You need to find out if the unit has a control board with on board diagnostics. If it does, the ...
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| Trane HVAC | 10/31/2008 |
Q: The fan runs all the time even if the the Thermostat is set to off. When set to heat, the igniter ...
A: It could be a bad t-stat. Remove the stat and disconnect the R wire. If the keeps running, then ...
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| flame stays on only 15 seconds | 10/30/2008 |
Q: I have a frigidaire heating unit that i turned on for the first time this season yesterday. ...
A: Some units have a board in them with flashing lights when a unit stops working. You can look to see ...
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| Goodman Furnace GMS95 | 10/30/2008 |
Q: My husband recently installed a Goodman GMS95 furnace in our basement horizontal. It kicks on ...
A: You need to check for proper air flow for the combustion. Using a magnehelic or an inclined ...
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| Trane XR90 Heater Starts and then shuts off after 15-30 seconds. | 10/28/2008 |
Q: We have a 5 year old (approx.) Trane XR90 unit. The heater appears to be trying to work, but kicks ...
A: Your furnace should have a control board in it with blinking lights. When the unit fails, the ...
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| Dual Zone but 3 floors. | 10/28/2008 |
Q: I just recently bought a townhome with dual zone HVAC system. The AC/Heat works wonderfully however, ...
A: You need to determine if the bonus room as an a/c vent in it, and if the furnace is big enough for ...
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| Bryant Gas Furnace | 10/28/2008 |
Q: I have a Bryant model 394HAD042066 upflow gas furnace. The problem I have the burners come on for 2 ...
A: To start off with, no this is not normal. The furnace has a temp switch that turns the fan and ...
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| replacing old unit | 10/21/2008 |
Q: I am thinking of replacing a 25 year old 80,000 BTU gas rudd unit that is working fine with an amana ...
A: The afue rating is the amount of heat that enters the unit puts out vs. the amount of heat (gas) ...
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| HVAC | 10/21/2008 |
Q: I've reset all the breakers, replaced the thermostat (electronic) and still cannot get the fan, ...
A: One will need to get into the unit to determine if there is both main and control power using a ...
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| furnace won't light | 10/20/2008 |
Q: I have an old Sears Life Clad Automoativ Gas Furnace. Pilot Free Electronic Ignition. I cannot get ...
A: It may not be a gas problem. You did not mention if the fan works, so try to turn on just the fan ...
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| coleman electric heater model EB12B | 10/20/2008 |
Q: my sister lives in a trailer 1990"s model,she let sombody work on it.From what she tells me,he ...
A: It could be a few different things, I would think you will not need a run cap. The problem could be ...
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| Payne modle PG8UAA | 10/19/2008 |
Q: I keep getting an error code of 31 which is pressure switch not closed... How do I and Can I fix ...
A: I believe the pressure switch the unit has in error is the inducer fan pressure switch. This switch ...
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| fan limit | 10/19/2008 |
Q: I have a unit heater in a shop. It is Armstrong Furnace Company Model G31-160A. The fan switch has ...
A: My answers are based on general knowledge for a given problem. You did not tell me the fan was or ...
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| Weil McLain Boiler | 10/19/2008 |
Q: Craig, Just renovated my basement and had my plumber install a new Weil McLain side vented Gold CGi ...
A: You need to look at the air pressure switch for the problem. You need to check to make sure you are ...
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| Heil Furnace Shutting Off Prematurely | 10/18/2008 |
Q: We have a Heil natural gas furnace at least 10 years old (Model #NUGK075DG07 - 867.769426). I just ...
A: Well, it could be a bad temp switch or there can actually be a problem with the furnace. I would ...
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| on a wild duct chase! | 10/17/2008 |
Q: I have a 3100 sq ft 2 story home that is serviced by 2 HVAC systems, 1 for each floor, with the ...
A: Do not swap the ducts between the two units, you will only create more problems in the house. The ...
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| Condenser won't shut off when ideal temp is reached. | 10/17/2008 |
Q: I work at an apt complex. I have an apartment that has a condenser that will not shut off. i have ...
A: I would disconnect the t-stat first (r wire). Look for a bad control board, shorted/grounded wires ...
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| Thermostat fan | 10/16/2008 |
Q: I have a rather simple but unusual question. I have a gas furnace. On my thermostat, I have the ...
A: It could be the thermostat. Not all units use a fan on signal from the t-stat when a call for heat ...
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| Pipes popping | 10/16/2008 |
Q: I just bought a house 2 months ago and I had noticed when the power was 1st turned on that the pipes ...
A: It sounds like the copper lines are not properly secured, and they are moving causing the popping ...
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| Heat pump | 10/16/2008 |
Q: Lennox 12HPB series heat pump unit, Lennox Electronic air cleaner, Brock Heat Recovery Ventilator ...
A: You seem to have a run of bad luck, but I am not sure if it is the unit's fault or what. It is ...
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| Home AC Unit | 10/15/2008 |
Q: woke up last night and the AC not working. I set it at 70 but the room temp was 80! No water ...
A: You need to check the breakers for the a/c unit. Turn them off and back on again to see if that ...
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| forced air furnace | 10/15/2008 |
Q: I have a forced air heating furnace system. Besides my basement, I have 3 floors above. For some ...
A: First you need to find out if the unit is big enough for the house. Then using an air flow meter, ...
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| A/C compressor fails to start | 10/15/2008 |
Q: We have a Heil PAM A/C unit (2 stage). It is about 6 months old. Recently the system frosted over. ...
A: Would this be a control board in the unit? Would this be the thermostat? Would this be a relay ...
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| Furnace flow question | 10/14/2008 |
Q: I'm designing a 1500 s.f. cabin for myself with a second floor master (438 up,1038 main) . The 2 ...
A: The unit is going to be an up or down, but will not be both. You will have to route the duct work ...
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| Indoor & Outdoor Coil Leaks? | 10/14/2008 |
Q: Have 5 year old Trane XR12. 3 weeks ago, unit not cooling below 75. Repairman came, said needed ...
A: If the cond. coil (outdoor) is covered, I am surprised the evap. (indoor) coil is not covered. The ...
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| Furnace won't start | 10/14/2008 |
Q: I started my furnace for the first time this year and it doesn't light, it is a RUUD delux 90 plus, ...
A: The first thing to check is the draft inducer fan proving switch. Check that the sail switch or the ...
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| HVAC HELL | 10/13/2008 |
Q: In Jan. an emergency generator between our condo bldg and the building next door started ...
A: It is unlikly the building owners have done anything to cause the fans to make more noise. Systems ...
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| furnace replacement | 10/12/2008 |
Q: Mr Lillie; Thanks for fielding our question. I'm lost in the world of HVAC. Our heat exchanger on ...
A: The problem you are going to run into is the fact that new R-22 units will not be made starting ...
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| heating zone controls in home | 10/12/2008 |
Q: I have honeywell zone controllers on my hotwater baseboard heat. It seems as if the two of the ...
A: If you are looking at the manual slide, the side of the slot that is longer where the tap hangs down ...
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| furnace/blower dead | 10/12/2008 |
Q: I own a York Diamond 80. my cellar flooded water level half way control panel covering the ...
A: It is likly more then just the run cap. I would bet the control board or even the motor could be ...
|
| drainage | 10/11/2008 |
Q: I have a carrier model 38ycc. The pvc pipe that drains when using the air is making a loud suction ...
A: The reason for the noise....no water in the trap or no trap. If the unit is not cooling, that could ...
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| installing a low voltage programmable thermostat | 10/9/2008 |
Q: I'm looking at installing a programmable thermostat to replace a "builders" manial model. There are ...
A: You need to do two things...get a thermostat that works with batteries, because you do not have a ...
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| Blower Control | 10/9/2008 |
Q: I have an older GE Weathertron air pump with an ICG electric auxillary heat source/air handler with ...
A: As long as the board will handle the amps, and you can connect the wiring to it to make it work...go ...
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| electric start tappan furnce | 10/9/2008 |
Q: I have had my furnace running for about 2 weeks now to take the chill off some. Last night i noticed ...
A: The problem can be any number of elect. problems in the unit. You need to have a meter and ...
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| 2 HVAC units home humidification | 10/8/2008 |
Q: Craig We have a 3 story home with 2 heating/cooling units (one upstairs, one downstairs). The one ...
A: A whole house humidifier does not mean much unfortantly. You really need to know the capacity of ...
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| DUAL ZONE | 10/8/2008 |
Q: We have a 5 yr old custom built house. Our HVAC is dual zone so that we would be guaranteed warmth ...
A: I need to add a bit to my answer...Air source heatpumps may not work well in PA during the extreme ...
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| DUAL ZONE | 10/7/2008 |
Q: We have a 5 yr old custom built house. Our HVAC is dual zone so that we would be guaranteed warmth ...
A: You did not tell me where you live, so the heatpump may not work very well. Most air source ...
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| Basement | 10/5/2008 |
Q: I recently finished my basement. One of the rooms is a home theater. I have no issues in the summer ...
A: You are better off reducing the heated air flow in the basement then trying to bring in cold outside ...
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| Used Trane XE1200 | 10/4/2008 |
Q: I need to sell a Trane XE1200 system in a 2300 s.f. house that we're tearing down and am not sure ...
A: I am not sure of the tonnage, as you did not tell me. Your unit is a 12 SEER unit. I would have to ...
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| a/c won't turn off | 10/3/2008 |
Q: The a/c runs continually; even turning the thermostat higher has no effect. Turning the thermostat ...
A: The common problem here is the compressor contactor. When I see this problem, 9 out of 10 times the ...
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| FREEZER | 10/2/2008 |
Q: WHERE DO YOU CHARGE A SEALED SYSTEM FREEZER AT
A: There is no where to charge up a sealed system installed. You have to get a piecing valve and ...
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| Lennox | 10/2/2008 |
Q: I have a 3 year old house with 6 lennox builder grade units. One of the 3 1/2 ton units sprung a ...
A: I have a couple of concerns here. First, you ought to contact Lennox and check the warranty, as ...
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| Trane fan motor | 10/1/2008 |
Q: I decided to go with a generic fan motor to replace ny trane fan motor. Unfortunately, every time ...
A: If the old fan motor was of the fancy variable speed type, then could why you are hearing the thump. ...
|
| Refrigrent line replacement | 10/1/2008 |
Q: My heatpump recently went bad and when i started getting estimates, we found a problem. My house is ...
A: Given the issue, it would appear that you will have to cut the dry wall ceiling, run the new lines, ...
|
| Coleman Evcon Heating and A/C Unit | 10/1/2008 |
Q: Have 1997 Coleman Evcon 39000 BTU Heating and Air Unit. Model #EB12B. It keeps blowing 24 volt side ...
A: The 24v fuse does not have anything to do with the fan or compressor directly, but rather in the ...
|
| drain pan | 9/30/2008 |
Q: I am in need to find a drain pain that is 6 inches by 18 inches for a 15 year old, york air and heat ...
A: It is hard to find parts for units that are that old. What I would do is either take the old pan or ...
|
| moving heat vent | 9/29/2008 |
Q: We have a manufactured home and the heat vent for the baby's room is right where I need to put the ...
A: It should not be hard to move as long as there is access to move it. If the vent is in the floor ...
|
| Blower Vibration, Rattle | 9/28/2008 |
Q: I have a Rheem RGVG-07EAMGR. It is the original to the home which is about 13-15 yrs old. The blower ...
A: It could one or more of several things. Dirty blower wheel, bearings/bushings going bad in the ...
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| fan blows | 9/28/2008 |
Q: I have a new house (built in July 2007) with a new Goodman AC unit, I have been turning over my yard ...
A: Outdoor coils will normally come clean with just a hose and maybe some degreaser like simple green. ...
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| AC blower unit | 9/27/2008 |
Q: My ac was running fine and then I heard the blower start turning on and off every few seconds. I ...
A: From the sounds of it, the motor could be bad. Motors have thermo protection, and will shut off the ...
|
| red light on motherboard | 9/27/2008 |
Q: we have a 9 year old amana central heat and air unit on the mother board there is a flashing red ...
A: The flashing red light is a start to determine what the problem is. In a lot of cases, the ...
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| air conditioner | 9/27/2008 |
Q: We set our airconditioner at 73. when it is 90 plus degrees outside, the temp rises to 79 by ...
A: From this, it is hard for me to detemine what the problem is. It could be a matter of the unit not ...
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| Burn Contact On Compressor | 9/26/2008 |
Q: I Have A Bryant Central Air Conditioner And I Live In The Richmond Virginia Area The Model # ...
A: I have really never had problems with different brands, the are all about the same. I am not sure ...
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| Pulling cold air into a room | 9/26/2008 |
Q: I have a room in my house that I have closed in. It used to be a den off of my kitchen. I put a ...
A: You have to have a way for the amount of air that has to get in to cool, get out. You also need to ...
|
| Thermostat setting | 9/25/2008 |
Q: I have a residential Trane XE 1100 AC unit made in 03/94 I need to correct the Reversing valve swith ...
A: Most heatpumps that I work with, power the rev. valve for cooling. They fail to heat. I believe ...
|
| a/c | 9/25/2008 |
Q: My air unit from 1995 was working fine until I change the cracked manual lever thermostat. I ...
A: The thermostat in your case, like most, do not control how much or how cold the unit is going to ...
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| Blower motor operation | 9/24/2008 |
Q: My townhouse has a roof mounted Payne 3 ton heating/air conditioning unit model# 588AWW036060. For ...
A: First, you can buy a new t-stat and install yourself. They are not hard on only require basic ...
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| air vents and funiture placement | 9/24/2008 |
Q: We have a large air flow vent in a wall of our den. Can I place a 30 inch high chest in front of it ...
A: Is the vent a return or supply? Does it have a filter in it that would require changing? It is a ...
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| RE: Flooded Furnace | 9/22/2008 |
Q: We got about 1 ft of water in the basement and now the furnace doesn't work at all. The circuit ...
A: Not all digital t-stats use the 24v power from the transformer. Removing the batteries may not tell ...
|
| Odor from heat pump | 9/22/2008 |
Q: We replaced our heat pump last September and a few months ago we started having an odor from the ...
A: Do you know what the manufacturers typically do in situations like this? nothing..for the most part. ...
|
| propane heater | 9/21/2008 |
Q: I want to set off a bug bomb in my basement. We have a propane heater, but I do not know what kind ...
A: IF the furnace has a pilot light, there will be a window someone on the front of the unit to see the ...
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| Furnace under water | 9/21/2008 |
Q: My late father in law installed a new Winchester furnace aprox 5 yrs ago. Unfortunately he was not ...
A: I would have to guess your unit has a control board in it. Most newer units have a control board ...
|
| Air Quality by just running Fan of HVAC in Fall | 9/21/2008 |
Q: First, this is great site, just started surfing less than an hour ago. Coming toI was thinking of ...
A: The filter company will tell you to change it once a month. However, I also judge the filter to ...
|
| Outdoor A/C Fan unit | 9/20/2008 |
Q: The fan does not run when the AC is on to cool the house. I changed out the fan GE motor and ...
A: You ALWAYS need to change the run cap when you install a new motor. The run cap can be bad, or it ...
|
| heatpump system freezing up | 9/20/2008 |
Q: It started with a plastic burning smell, which was the contactor and transformer melting. We ...
A: By removing the door, you are allowing the air to bypass the coil. Since the air is not flowing ...
|
| replacing a heat pump (10ceer0 with a 13 ceer | 9/20/2008 |
Q: My home is 40 years old and we have always had heat pumps. I have now replaced my (10ceer) unit ...
A: The SEER rating of the unit does not change what size ducts are used. You did not say if the size ...
|
| Central A/C Indoor Coil & Puron Replacement | 9/19/2008 |
Q: Carrier 38TDB037---30 / Indoor Coil FE4AN Indoor Coil leaked and lost Puron resulting in no A/C ...
A: No, you do not have to recover all of the gas, but you do have to charge from a liquid. Remember, ...
|
| central air and heat | 9/18/2008 |
Q: Two contractors have my attention to install central air and heat in my home. One highly recommends ...
A: I would say that either one. I would not put one above another. It is more important that the unit ...
|
| Digital T/Stat Will | 9/18/2008 |
Q: Last Thursday my York central air conditioner worked fine until I got up Friday morning. I must ...
A: The control power is from a transformer inside the unit. The t-stat uses the power from the ...
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| Digital T/Stat Will "Click", But No A/C, Fan, No Nothing | 9/17/2008 |
Q: Last Thursday my York central air conditioner worked fine until I got up Friday morning. I must ...
A: Since the LED is not blinking, then either the board is bad, or has no power to the board. ...
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| central air conditioner/heating | 9/17/2008 |
Q: I am looking to replace my 18 yr old air conditioner/ furnace. I've gotten several quotes from ...
A: Amana is made by Goodman, and Goodman is not my first choice. The American Standard is made by ...
|
| gurgling sound coming from a/c unit | 9/16/2008 |
Q: I've just had a brand new a/c unit installed and there is a gurgling sound that is coming from the ...
A: You have the same reasons, either it is normal, or the unit is not properly charged. If the unit ...
|
| New Furnance and Air Conditioning Unit | 9/15/2008 |
Q: We recently purchased a home that has a 22 year old Furnance and air cond unit that needs to be ...
A: The Amana is a Goodman, and would not be one of my first choices. I would go with the Rheem or the ...
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| furnace vent duct leak | 9/15/2008 |
Q: My husband cut a hole in the ceiling so we could try to figure out what was going on. The attic is ...
A: From you description, is sounds like the flue it getting cold enough for the humidity from the ...
|
| Breaker Tripping | 9/14/2008 |
Q: We recently replaced our 22 year old central air unit. It would trip the breaker continually and we ...
A: Replacing a 22 year old unit was not a bad idea no matter which way you look at it. Anything over ...
|
| start compacitor | 9/14/2008 |
Q: compressor starts and runs for 5 seconds then the compressor shutsoff the fan stays on ,, then in 30 ...
A: There is a problem with the compressor. Using a amp meter, determine if the compressor is staying ...
|
| Dog ripped out 2-wire thermostat wire...shorted transformer? | 9/13/2008 |
Q: Please excuse my lack of proper terminology! My dog ripped out the 2-wire thermostat wire that runs ...
A: You did not mention if anything in the unit works, or the entire thing is dead. If the wires were ...
|
| AC works, but loud humming sound while running | 9/13/2008 |
Q: I have a 5 yr old Carrier AC unit for my upstairs zone at my home. It has recently started to make ...
A: What is the root cause of this noise? It is common to have a compressor contactor cause the humming ...
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| York 4 ton ac unit | 9/12/2008 |
Q: This is a brand new unit in new construction. The contractor came and installed the unit and got it ...
A: It is possible for a compressor to be bad right out of the box. I have had all sorts of things not ...
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| Blower motor comes on and blows the 15 amp fuse | 9/12/2008 |
Q: I have a furnace a York updraft model and when the blower motor comes on the fuse blows. I changed ...
A: The size of the fuse will not hurt anything. As long as the fuse fits without modifying or forcing ...
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| Blower motor comes on and blows the 15 amp fuse | 9/12/2008 |
Q: I have a furnace a York updraft model and when the blower motor comes on the fuse blows. I changed ...
A: Spencer, "the amp draw on the motor is 14.2 as per specs" does not tell me everything. I am not ...
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| air temp | 9/11/2008 |
Q: On average , what temp should the air coming from the vents be. I know it depends on a lot of ...
A: Well, I need to know the suction pressure to tell if the temp is ok, but 42 seems a bit low, and you ...
|
| Wrong air handler installed | 9/11/2008 |
Q: I have a 3 zone Geothermal system that was installed 3 years ago when we built the house. The ...
A: If possible, I would go after the installer. This is not a warranty issue with the factory, but a ...
|
| Soft Start home condenser unit | 9/9/2008 |
Q: Can I add a soft start unit on my 4 ton condenser unit. I would like to drop the LRA at starting. ...
A: Since there is no way to "unload" your compressor, a soft start is not a good idea because you need ...
|
| Burning Smell from AC Vents | 9/9/2008 |
Q: 5 ton Goodman ac unit the system cools fine however I have a burning smell coming from the vents. ...
A: I do not believe any home units have a belt driven fan. Most if not all belt drives are in ...
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| Ice forming outside on hose outside | 9/9/2008 |
Q: I have a 10 year old carrier unit. The air flow is weak and the house takes along time to chill. ...
A: Taking pressure and temp readings is the best way to determine if the system is low on charge and/or ...
|
| Coleman EB15B blower motor wont run on a/c | 9/8/2008 |
Q: I have checked the system with a voltmeter, I have power to both the red(heat) and black(A/C) going ...
A: To start with, the fan motor you have is 3 speed, the other two wires are how you set it to a ...
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| HVAC Compressor always on, Furnace Fan Cycles | 9/8/2008 |
Q: I have an old Honeywell round style thermostat in the house and a Janitrol (Goodman) Compressor ...
A: If you are getting 24v to the contactor coil, the unit is going to run, and will not stop unless the ...
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| AC blower motor | 9/8/2008 |
Q: Here's one for you. We keep the fan motor on our Kenmore AC/Furnace in the on position to better ...
A: I am not sure what you have in the way of controls, but it could be the t-stat, control board, ...
|
| Outside Compressor runs constantly | 9/7/2008 |
Q: I have the exact same problem as the following 2006 posting. I replaced the contactor which did not ...
A: If you replaced the contactor, it might be possible you got some of the wiring wrong. You are going ...
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| HVAC Compressor always on, Furnace Fan Cycles | 9/7/2008 |
Q: I have an old Honeywell round style thermostat in the house and a Janitrol (Goodman) Compressor ...
A: You will need to prove the contactor is working correctly with a meter. I would guess the contactor ...
|
| 75 degrees is best | 9/7/2008 |
Q: I have a 3 bedroom house in Livermore and its been in the upper 90s or more. Ac system original 24 ...
A: With age... compressor may not pump as good due to wear of the piston and valves coils get dirty, ...
|
| New Air Conditioning | 9/6/2008 |
Q: I received a quote for a new TRANE 5.0 ton XR13 Series, 14 Seer w/ Variable Speed Air Handler & 15 ...
A: In some cases it is requred that the t-stat be changed out. I do not think the unit you have really ...
|
| 75 degrees is best | 9/6/2008 |
Q: I have a 3 bedroom house in Livermore and its been in the upper 90s or more. Ac system original 24 ...
A: The unit might actually be able to cool the house to you liking if it is working right. Unfortantly ...
|
| 75 degrees is best | 9/6/2008 |
Q: I have a 3 bedroom house in Livermore and its been in the upper 90s or more. Ac system original 24 ...
A: The pressures you gave me seem like normal pressures, but that does not tell me the whole story. It ...
|
| Need complete new AC system or not | 9/4/2008 |
Q: Here is my situation. I recently bought a 30+ years old condo in west LA. 2/2 1100 sq ft currently ...
A: Considering the life span of a unit is about 15 years, I would look to replace the unit. You should ...
|
| CENTRAL AIR NOT COLD | 9/4/2008 |
Q: HAD HIGH ELECTRIC BILL. NOTICED AC UNIT NOT SHUTTING DOWN ON ITS OWN. 96 DEGREES OUTSIDE AND 90 ...
A: The system could still be under-charged. It is not normal to find units that have been working for ...
|
| A/C and Furnace pick | 9/3/2008 |
Q: I am about to pick an A/C and furnace system and facing a picking from TRANE and Carrier. They are ...
A: If both units have the same effciency, and the price is close, then next look at the warranty. If ...
|
| a/c not cooling | 9/3/2008 |
Q: I live in a 3 story townhome (2000 sq ft) and have a Armstrong Air Ultra V inside unit with a ...
A: Depending on the type of filter used, construction dust is very bad for an evap coil. The dust gets ...
|
| RUDD Silhouette II | 9/3/2008 |
Q: How can I tell if this furnace is set up for Natural Gas or Propane? It was in storage from a closed ...
A: The unit should be clearly marked on the name plate NG or LPG. You might also find markings on the ...
|
| using a central air return in a 3000sqft ranch | 8/27/2008 |
Q: I have currently a hvac system that is over 20 yrs old. The duct system is even older and most are ...
A: It is common for units to be hung in the attic. They work with the attic temp get into the ...
|
| A/c | 8/27/2008 |
Q: My drain pipe from the second floor is leaking water outside my home? What does that mean? The pipe ...
A: If the unit is hung in the attic, it is possible the main drain is plugged up, and the water you are ...
|
| poor air flow | 8/27/2008 |
Q: Similarly to the person before me, I am in a newer home 2yrs and having air flow problems with the ...
A: If the system was installed correctly, hopefully they installed dampers in the ducts in your ...
|
| American Standard Freedom 80 single stage - not sucking in air to cool it | 8/26/2008 |
Q: Hey Craig, We had a power outage for about three hours 2 nights ago. I turned the power off on our ...
A: Is the cond unit running (outside unit)? If it is running do you see any ice forming anywhere? If ...
|
| Home AC question | 8/26/2008 |
Q: I have been in my house (central Texas) for 8 yrs. I have 2 units. One is for the upstairs and one ...
A: I would think in the great state of TX, a unit would last about 15 years with normal use. Granted, ...
|
| TXV | 8/26/2008 |
Q: What are the types of problems I can expect if I have a TXV not operating correctly? This is what ...
A: I TXV can cause all sorts of problems. Hitting the txv will not fix any problems with it. The ...
|
| air conditioning unit | 8/26/2008 |
Q: I have a small 12,000 BTU air conditioner and recently I have noticed a huge build-up of ice,just ...
A: I do not work with window units, but there could be several reasons for your problem. Poor air flow ...
|
| central heat /air | 8/25/2008 |
Q: "This morning I noticed that even though our central heat/ac was switched to ac and had been working ...
A: If the unit should have been off, it is possible the compressor contactor is stuck in, keeping the ...
|
| Trane XE 800 | 8/17/2008 |
Q: My Trane Xe 800 Ac unit does not work. When I turn it on, the solenoid clicks but that is it.. no ...
A: The next step to so check and reset the breakers. If that does not do it, then using an elect. ...
|
| A/C coil problems | 8/16/2008 |
Q: Have a Trane unit that came with the house when purchased new three years ago. The coil has been ...
A: I have a couple of thoughts on this...If the drain from the unit is piped into the sewer drain, it ...
|
| Cruisair marine AC/heater not working properly. | 8/16/2008 |
Q: I have a Crusair 16KBTU AC reverse unit (on a sailboat). I just had it serviced by a pro. They ...
A: I am not familiar with your unit, but a power down might fix the problem. There is probably a high ...
|
| Nutone HVAC | 8/15/2008 |
Q: I'm planning to replace a 20+ year old Apollo furnace and AC system with a heat pump with electric ...
A: I have never heard of Nutone. Nordyne makes good units for the most part. I would bet that Nutone ...
|
| Air Conditioning...condenser fan | 8/14/2008 |
Q: should my outside condenser fan always be running when my unit/compresser(Rheem) is running??? I ...
A: You likly have a bad fan motor. It will run unil it gets hot, then shuts off until it cools off. ...
|
| Central a/c tripping breaker | 8/14/2008 |
Q: .. My Trane 1200 is 7 years old. At the start of the cooling season this year it would trip the ...
A: You may have a more serious problem with the unit, but I find that a hard start kit will solve this ...
|
| Larger air handler? | 8/14/2008 |
Q: I am very happy to have found this site! My question is will a larger air handler give any ...
A: I have installed a 1/2 ton bigger air handler, but not a full ton. A four ton a/h will move about ...
|
| Air Conditioning...condenser fan | 8/13/2008 |
Q: should my outside condenser fan always be running when my unit/compresser(Rheem) is running??? I ...
A: The fan needs to be running. I would not run the unit until you get the fan fixed. If you have a ...
|
| Compressor Fan stopped working | 8/13/2008 |
Q: Just bought my house one year ago. A/C had been working fine all last/this summer. It has recently ...
A: I have seen all sorts of critters inside units, they are not alive when I find them. The fan and ...
|
| central air intake/ return grill w/o filter? | 8/12/2008 |
Q: We have moved into our newley built house. I have noticed two 12" X 12" return grills that are ...
A: Not all grilles need filters. I would not place filters if not needed. Chances are the two 12x12 ...
|
| My ac pours inside the house | 8/11/2008 |
Q: My ac is set at 75. It never reaches that temp during the day. We have a 5 ton for only 1600 sq ft. ...
A: I would have to believe you do not need 5 tons for the sq. footage. I would bet that the duct work ...
|
| Air conditioning pan filled with water | 8/11/2008 |
Q: My air conditioning pan in my attic is filled with water and water is dripping outside from the air ...
A: You can not use the a/c too much, they are disigned to run non-stop. I suggest you clean out the ...
|
| AC is not working after lightning storm. | 8/9/2008 |
Q: My AC system is not working. The 3 amp fuse in the (delay?) circuit was blown. I have replaced it 3 ...
A: As a general rule, you should not replace a fuse more then once if it blows right away. You can ...
|
| indoor blower/fan | 8/8/2008 |
Q: My A/C blower was cycling with the switch on cool and the fan on auto. I let everything cool down ...
A: I am guessing the fan is cycling off on its own (the t-stat is still calling for the fan to run). ...
|
| Fan Speed Setting for central Air | 8/8/2008 |
Q: I have a Goodman GMP100-5 furnace. I'm not sure what type of compressor I have. My home is about ...
A: Setting the fan to low will dehumidify better, but you may lose some capacity. I am not sure if ...
|
| CTD circuit board | 8/7/2008 |
Q: This is Arizona..I have a 12yr old Carrier 38BRB. The compressor unit will not come on when called ...
A: It might appear the delay timer might be bad then. I would replace it, as it is an inexpensive ...
|
| Ducts | 8/7/2008 |
Q: Is the use of insulated round flexible ductwork 6" or 8" an option to feed each room for a 4 ton ...
A: Yes, if that is the size you need. The amount of CFM's you need will determine how big the ducts ...
|
| Air conditioning 'add on' ... | 8/7/2008 |
Q: I'm afraid I don't know the proper terms but ... We have a new home with a 'forced air gas furnace' ...
A: You are going to need a split system. There is going to be a piece of equipment outside (condensing ...
|
| CTD circuit board | 8/6/2008 |
Q: This is Arizona..I have a 12yr old Carrier 38BRB. The compressor unit will not come on when called ...
A: The proper thing to have done would have been to check the pressures. Most of the hoses we use are ...
|
| AC- Trane XB1000 3 Ton Unit- Not cooling | 8/6/2008 |
Q: I live in North Mississippi. My house is 1620 sq ft and built in '02. *420 sq ft of that is a ...
A: If it is 100 out and you can keep the house at 77 with the unit running, then I would think you are ...
|
| Payne PA10 central air conditioner | 8/6/2008 |
Q: My Payne PA10 air conditioner has suddenly quit working. The problem seems to be at the outside ...
A: It is possible the dual run cap is bad. An ohm meter is not enough to check the run cap, in most ...
|
| Replacing AC | 8/6/2008 |
Q: I live in a 1400 condo that has a loft where most of the heat gets trapped. My unit is 20 years old ...
A: Manuel J is how we in the field determine how much heating or cooling is required. The structure ...
|
| Replacing AC | 8/5/2008 |
Q: I live in a 1400 condo that has a loft where most of the heat gets trapped. My unit is 20 years old ...
A: Without a "Manuel J", there is no way for me to know how big of a unit you actually need. Your ...
|
| Which central AC condenser is better? | 8/5/2008 |
Q: I need to have my 4-ton condenser unit replaced. I've received 2 quotes from 2 different companies ...
A: Payne is made by Carrier, and Heil is made by ICP. I have installed equal numbers of both and have ...
|
| how to dis engage heat stips on nordyne unit | 8/4/2008 |
Q: my heat strips are sticking on while my air condition is on how do i disengauge them?
A: At this point, the best thing would be to disconnect the line voltage that feeds the heat strips ...
|
| luxaire a/c problem | 8/3/2008 |
Q: when themostat calls for cooling it blows a 3amp fuse on the circuit board, I checked thermostat for ...
A: The problems is likely in one of the relays, contactors, or eve the defrost control board if you ...
|
| central air compressor | 8/3/2008 |
Q: The unit is a 2 ton "Coleman" condenser, split system. When there is a high ambient temp. the units ...
A: Either the compressor is running hot, because the cond is dirty, and not all of the pressures and ...
|
| Condensation leaking on to floor from a/c | 8/2/2008 |
Q: We have a Carrier A/C Model 38YCC 024340----341---- which does not drain fully to the out side. ...
A: Your drain line could be blocked up some, recommend cleaning out the drain with a wet vac. The ...
|
| 2.5 problems with Rheem AC unit | 8/2/2008 |
Q: I've had two techs out but neither could troubleshoot the issues because it wasn't happening when ...
A: The outdoor fan motor could be failing. This can be a sign that the bushings/bearings in the motor ...
|
| Contactor not always | 8/2/2008 |
Q: Good Morning, I have a Rheem central air unit about 15 yrs old. Still cools great. I recently ...
A: Shouldn't the transformer take whatever the high voltage is that is comming into it and "transform" ...
|
| HVAC | 8/2/2008 |
Q: I am putting an addition on my house. The contractor has suggested we use an in-attic air handler in ...
A: As a service person, I would not want the air handler in the attic to work on. The only pro would ...
|
| Contactor not always "pulling in" on Rheem | 8/1/2008 |
Q: Good Morning, I have a Rheem central air unit about 15 yrs old. Still cools great. I recently ...
A: You need to check the high voltage coming into the unit. Some units have a transfomer that will ...
|
| Dripping AC | 8/1/2008 |
Q: is it normal for a central unit to drip water outside constantly? We have a large puddle outside ...
A: If you DO NOT see water, then you are in trouble. As part of the cooling cycle, water is removed ...
|
| New ac not removing humidity it is hot! | 8/1/2008 |
Q: I recently installed Goodman central a/c units.. a 5 ton 13 Seer outside unit and new evaporator ...
A: When you changed out the unit, how big was the unit that came out. This is a common problem when a ...
|
| cold air return sizing | 7/31/2008 |
Q: I have hydro air in my home. I don't think the return registers are in the proper location and will ...
A: You really can not have too big of a return for the most part, but you do not have to go crazy with ...
|
| A/C not cooling house | 7/31/2008 |
Q: I just had my A/C worked on late May, early June...at that time the inside unit came on, but the ...
A: If the outside unit is running, and there is little air from the vents, then it could be a bad fan ...
|
| banging hammer noise | 7/30/2008 |
Q: I have an old (30 year plus) GE 5 ton unit that the A/C compressor finally went down. It has a long ...
A: Somthing does not sound right, The noise could be a sign the compressor is flooding back, or losing ...
|
| goodman vs frigidaire | 7/30/2008 |
Q: Craig, I am so confused, I need to replace my ac replaced the furnace with an twostage amana 80% ...
A: I would say that these two units are of about the same quality. I might lean more towards the ...
|
| AC Air Flow and Efficiency | 7/30/2008 |
Q: Yesterday I had air conditioning and a new heater installed at my house. My house is a single-story ...
A: A three ton unit should move about 1200 cfm give 400 cfm per ton. On a ductulator that works out to ...
|
| Diffusers & Grills | 7/30/2008 |
Q: Greetings! My HVAC contractor has just finished installing ductwork inside my Studio in my ...
A: You can use something like this to measure the air flow. ...
|
| Air distribution problem | 7/29/2008 |
Q: My house was a 3-bdrm house with crawl space. Previous owner added two bdrms and one sun room. ...
A: There is no quick and easy way to deal with this issue...you should take the following steps. a. ...
|
| YORK AC Compressor split 5-ton condenser | 7/29/2008 |
Q: My compressor turns on and off every 1.5 minutes. Is the compressor defective? We have changed the ...
A: If the compressor is working, then it is likly not the compressor. One or more of the system ...
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| air conditioner fan | 7/28/2008 |
Q: The fan is not spining in the unit it is a goodman and it is only four years old I would like to ...
A: The fan needs to be checked to see that it has line voltage to it. It could also be a bad fan ...
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| new 4ton system | 7/28/2008 |
Q: We have a 14yr old 4ton combo system that we are looking at getting replaced. It is for a mobile ...
A: I am not sure what it will required to change your unit, so I can not say where the price is. It ...
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| Preventative maintenance | 7/28/2008 |
Q: I currently have two rental properties which have central air conditioning. One of the systems ...
A: Changing the filter on a reg. basis, and cleaning the cond. coil once a year is a good place to ...
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| start-assist (hard start) kit | 7/27/2008 |
Q: Carrier recommends installing our new HVAC (heat pump) system according to their "long line" ...
A: Hard start kits are installed on compressors to help them get going. The reduce the time the ...
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| my heat pump has very low super heat | 7/27/2008 |
Q: I hope you can help me. I do not understand what is happening with my unit, i have been checking my ...
A: If the superheat is low, and you have a TXV, then it is possible the TXV is bad, or the bulb is not ...
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| New 5 ton American Standard Air Handler short cycling | 7/27/2008 |
Q: Hoping you can help me... 2 weeks ago our fan went out on our 5 ton outside unit. Since the house ...
A: The leaking can be caused by several things...too much air flow, the coil icing up a bit, drain line ...
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| Trane XE 1200 Weathertron Heat Pump question | 7/26/2008 |
Q: First of all, the unit is 11 years old, I realize it is probably nearing the end of it's functional ...
A: My first guess is the run cap for the fan motor is bad. It is also possible the bearings in the fan ...
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| Household HVAC system | 7/26/2008 |
Q: I have a 25 year old HVAC system that is working just fine. However, I just noticed water around ...
A: The amount of water will determine how bad the problem is. It could be the unit just needs to be ...
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| Crankcase | 7/26/2008 |
Q: Thunderstorms tripped my AC. When reset, compressor made extreme noise. Service tech said first ...
A: I find it bad on the mech's part to have told you that the compressor is bad, then tell you the ...
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| Fiter location for heil gas pack | 7/26/2008 |
Q: I have a Heil gas pack and I can't find the filter. I have checked all the air returns and have not ...
A: If there is a filter rack in the unit itself, normally the panel that has to be removed will be ...
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| HVAC Not Cooling | 7/25/2008 |
Q: I Have A Janitrol Unit Installed In My Home,And The Age Is Unknown But It Quit Blowing Air Through ...
A: It could be one of two things. The fan motor is not working, or the unit is freezing up stopping ...
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| Central Air conditioner compressor | 7/24/2008 |
Q: I have an older central air unit that I replaced the compressor in last year. The refrigerant leaked ...
A: Either the internal relief is bad or the unit is running a really high head pressure. A set of ...
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| HELPPPPP | 7/24/2008 |
Q: OUR FILTER WAS DIRTY MY HUSBAND WENT TO REPLACE IT AND NOTICED WATER ON THE BASEMENT RUG THE UNIT ...
A: At this point, it is going to require some checking. Someone, is going to need and know how to use ...
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| House will not cool | 7/24/2008 |
Q: Thermostat was set on 72 degrees all day yesterday. The outside temperature at 3:30 was 98 degrees ...
A: Sometime since that time, we had 2 more ducts installed - one in the living room and one in the ...
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| Heil evaporator/HVAC | 7/23/2008 |
Q: What size copper pipe is regulation on my AC? I don't know what size the AC is but I have a 1500 ...
A: The size on the copper depends on the tonnage of the unit, and the lenght run for the most part. I ...
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| How will not cool | 7/23/2008 |
Q: Thermostat was set on 72 degrees all day yesterday. The outside temperature at 3:30 was 98 degrees ...
A: I had to be sure, because something just does not make sense...It should not required 3 tons of ...
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| HELPPPPP | 7/22/2008 |
Q: OUR FILTER WAS DIRTY MY HUSBAND WENT TO REPLACE IT AND NOTICED WATER ON THE BASEMENT RUG THE UNIT ...
A: If the unit has a saftey overflow device, it may not have reset. Normally it is in the drain line ...
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| HVAC Unit Freezing at night | 7/20/2008 |
Q: I have an Evcon/Coleman split system. The system is about 15 years old. It has worked fine. Three ...
A: Fan motors do not get weak. The run cap can go bad, but then the fan will not work. Fan motors are ...
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| warm suction line | 7/19/2008 |
Q: 14 year old Janitrol 1.5 ton unit. Has worked fine for 14 plus years. Replaced starting cap and ...
A: Your numbers do not completly make sense. If your suct pressure is 68-70, then your actuall suct. ...
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| AC NOISE | 7/19/2008 |
Q: The unit inside the house started making a noise like a knocking noise. When I first heard it I ...
A: The noise could be a sign of problems, but not all of the time. I would have the unit checked if ...
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| lights dim | 7/19/2008 |
Q: i live in a one hundred year old home i have no complaints except for when the central air kicks on ...
A: It is normal for the lights to dim when the a/c kicks on. The compressor uses a lot of amps to get ...
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| moving Air conditioner | 7/18/2008 |
Q: Good morning have you ever moved a working 3 ton ac condenser to another site or do you know anyone ...
A: I would say that most of us in the trade have moved used working units from one place to another. ...
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| Haier HVAC fan | 7/18/2008 |
Q: My AC has been running fine so far this summer until one night I was outside and heard this LOUD ...
A: Although my ears would tell me for sure, it sound like the bushings or bearings in the motor are ...
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| No 24 VAC to Thermostat | 7/18/2008 |
Q: I am trying to replace my Carrier TSTATCCPQ501 Thermostat with a Venstar T1800 to use with my home ...
A: A standard t-stat in a standard home, has 24v to it from the air handler. The red wire, in most ...
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| INSIDE UNIT FREEZE-UP | 7/17/2008 |
Q: CRAIG, I RECENTLY PURCHASED AN LG 12,000 BTU MINI-SPIT HEAT PUMP WITH INVERTER COMPRESSOR. IT HAS ...
A: If you have not already, check/change the filter, as this is a common problem for a freeze up. If ...
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| home a/c unit | 7/17/2008 |
Q: My a/c is cooling fine. I noticed this morning that the outside fan/condenser unit was running even ...
A: Offen when the fan keeps on running, the compressor is also running. When there is no call for ...
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| spacepak units | 7/17/2008 |
Q: I am currently running a spacepak system in my house. The compressor outside is a 3 ton 10 seer but ...
A: At this point, I would not replace the unit. A newer 13 SEER unit might use a bit less power, but ...
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| NEW TRANE A/C NOT WORKING WELL | 7/17/2008 |
Q: I HAD A NEW TRANE XL15I 2.5 TON SEER 15 A/C INSTALLED LAST OCTOBER BUT ONLY STARTED USING IT LAST ...
A: The air temp leaving the air handler AT the air handler should be 15-20 cooler then the entering air ...
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| AC Short cycle | 7/16/2008 |
Q: I set my thermostat to 75F..The unit will short cycle on and off until the temperature reaches 79 ...
A: You could have a bad t-stat, or weak batteries in the t-stat (if is uses batteries). You can elimate ...
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| loud pipes inside walls when AC compressor kicks on | 7/15/2008 |
Q: In the summer the AC here in the south runs a lot. The problem is the inside lines run up and over ...
A: There may not be anything you can do. It is possible the line set could be undersized. Undersized ...
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| Carrier A/C water drainage issue? | 7/14/2008 |
Q: I have a Carrier A/C unit that stopped working today. It was set at 75 degrees and I noticed the ...
A: Just because the drain outside is dripping, does not mean you do not have a blockage. I suggest you ...
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| Replacing air conditioning ducts | 7/14/2008 |
Q: I live in Tampa, FL and my house is 37 years old with original air conditioning ducts in the hot ...
A: The work to remove and replace the ducts with a flex "spider" system is not all that hard (although ...
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| AC not working | 7/13/2008 |
Q: I have a Goodman Condensing unit (2 actually). They have both been working fine for the last 2+ ...
A: Since the fan was working, and the fuse blew again once it called for cool, my first thought is the ...
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| Outdoor condensing unit | 7/12/2008 |
Q: My church has a 4 ton carrier heat/ac unit and a york condensing unit. The york is new and I have ...
A: If there is something strange going on, it could be hard to figure it out. It might be a matter of ...
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| Outdoor condensing unit | 7/12/2008 |
Q: My church has a 4 ton carrier heat/ac unit and a york condensing unit. The york is new and I have ...
A: If the unit is in cool mode, it should not go into defrost mode. If for some reason it goes into ...
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| constantly run ac | 7/12/2008 |
Q: i just had a new furnace and central air system put in my 14x70 mobile home i live in indiana it is ...
A: Ok, that helps. My guess would be the unit was not installed right and needs to be checked. With ...
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| AC | 7/11/2008 |
Q: Can I replace 220v A/C only mechanical thermostat with 110 v digital one? I live in Bangkok, and ...
A: Here in the US, it is common to find units that work with 220v and 110v 60hz, as the main power. ...
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| Replacing air conditioning ducts | 7/11/2008 |
Q: I live in Tampa, FL and my house is 37 years old with original air conditioning ducts in the hot ...
A: I would not replace the sheet metal ducts. I wish my new home had sheet metal ducts installed. ...
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| A/C eating energy after capacitor change | 7/10/2008 |
Q: I have a lennox A/C system. The capacitor on the outside fan went bad, and the A/C tech replaced it ...
A: The run cap actually helps the motor run more efficient, and will not cause your a/c bill to ...
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| Trane 4TEE air handler motor | 7/10/2008 |
Q: My air handler motor took a dump on the 4th of July so i rigged an old motor and capacitor in place ...
A: Likely the electronics in the motor are bad, and you have to replace the entire motor. They do not ...
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| Res. AC / indoor fan cycles on / off with outside fan on | 7/9/2008 |
Q: Hope you can help... I have a Goodman air handler inside (which I believe is about 3-4 years old. ...
A: Ok, now lets remove the t-stat from the problem...remove the t-stat from the wall and connect the ...
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| AC (window unit) | 7/9/2008 |
Q: Craig, my window unit seems to work fine long as i run the motor on high speed. If i turn it to low ...
A: I do not work with too many window shakers, I just change them out when needed. The unit likly only ...
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| attic a/c unit humming noise | 7/4/2008 |
Q: we are getting an annoying deep bass humming noise from the upstairs A/C unit which is in the attic. ...
A: Look to see if the installer place any rubber padding under the unit where it touches the blocks. ...
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| Fuse amp rating | 7/3/2008 |
Q: I have a Tempstar Villager series central AC unit about 9 years old and so far still runs like a ...
A: It is normal for the fuses to be rated higher then the motor. The more important thing is that the ...
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| Mystery Duct | 7/3/2008 |
Q: This is a heat/AC/duct work question that has me completely stumped. I’ve included a link to my web ...
A: I would be willing to bet that the duct was once used to for a unit that was mounted on the roof. I ...
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| Mystery Duct | 7/3/2008 |
Q: This is a heat/AC/duct work question that has me completely stumped. I’ve included a link to my web ...
A: Do you know for certain if the duct work is on the discharge side of the furnace or the intake side. ...
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| Trane XE1000 | 7/3/2008 |
Q: I have an Trane XE1000. In the cooling mode I have a problem. The compressor does not cut off when ...
A: I am about 90% sure the cause of this is a bad compressor contactor. They will get stuck pulled in ...
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| Inside humidity increasing/ outside heat pump hot | 7/2/2008 |
Q: I have a 2005 model Carrier Heat Pump, 13 Seer. Over the last few days the humidity (and dew point) ...
A: The cond. coil may just need to be cleaned so the unit will work better. Even though it may look ...
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| bad contactor | 7/2/2008 |
Q: I have a Trane central air conditioning unit. It was installed in 1985. My problem is that it has a ...
A: You are looking for voltage. Even though it may appear to be off, it is standard practice to check ...
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| bad contactor | 7/2/2008 |
Q: I have a Trane central air conditioning unit. It was installed in 1985. My problem is that it has a ...
A: The price you were give seems excessive...I have seen this happen before...How old are you? How ...
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| bad contactor | 7/2/2008 |
Q: I have a Trane central air conditioning unit. It was installed in 1985. My problem is that it has a ...
A: The contactor is located inside the control panel which is on the side of the unit. Normally it ...
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| Trane Air Handler - Is Air Speed Adjustable? | 7/2/2008 |
Q: I have a Trane Air Handler model TWE048C140. The unit is 10 years old. For the last few years, the ...
A: In those older units, it was common for the fan to have three speeds. There are several wires that ...
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| Shady AC work | 7/1/2008 |
Q: About 4 years ago had a new attic unit was installed in our home. Unbeknown to us, the previous ...
A: I do not know any of the laws for this. Since you did not tell me what state, I do not know where ...
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| water in floor vents | 7/1/2008 |
Q: i also live in oklahoma and have had water in my floor vents. we removed the water with a wet vac. i ...
A: That seems like a lot of water for the A/C unit to cause. It is not impossible for the unit to ...
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| TD starts out too high | 7/1/2008 |
Q: I have a brand new AC Grand Aire condenser and handler - 1 month installed - 1928 SF home - 2 story ...
A: Does the cond. unit start up as soon as the air handler? It is possible the cond. unit has a delay, ...
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| multi-position air handlers | 6/30/2008 |
Q: I installed my furnce last fall and I keep having to replace the heating elements in it. I am ...
A: The heating elements need to be checked to see if they are over-amping. It is also possible there ...
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| ac smells like chemical | 6/30/2008 |
Q: we have been running our ac for a couple of months now and the air has a chemical odor when it's on. ...
A: I am not sure how dangerous, because I do not know what it is. Most of the time there can be elect. ...
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| blower motor | 6/30/2008 |
Q: We have a 15(+/-) yr old Trane XE60 HVAC and the blower motor will not turn off... The compressor ...
A: It can be a DIY thing, but you need to know how to work with electricity and have at min. a ...
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| non-operational blower | 6/29/2008 |
Q: I am having problems with my A/C unit. The blower inside the house works, but the fan outside ...
A: There are several different brands of contactors, and any of the other brands will work. Do not try ...
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| Gibson vs. Frigidaire | 6/29/2008 |
Q: I am having the heat pump in my house replaced and I am a little unsure as to what to get. My ...
A: Hold on to your hat....Gibson and Frididaire are made by the same company, Nordyne. ( ...
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| Contactors Failure causes | 6/29/2008 |
Q: what is the causes of defected contactors, i have install the third one but still i have doubt that ...
A: If age is not a factor, then nomally voltage problems, compressor over-amping and loose wires will ...
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| AC Noise | 6/29/2008 |
Q: Howdy ~ We live in hot-as-hell Tucson, Az. with an 11 year-old roof-mounted Trane. It gets serviced ...
A: The noise is likely the compressor valves closing when the compressor shuts down. The high outdoor ...
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| Trane Valve problems | 6/28/2008 |
Q: One of the units has quit on me twice in 6 weeks. Repair man says it is a faulty valve that is not ...
A: It is possible that the TXV (thermostatic expansion valve) may have failed. It also possible when ...
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| Out of control Furnace-AC | 6/27/2008 |
Q: Hope YOU can help . . . Hello! The expert can't answer your question. Your Question was: Right now ...
A: You have removed the t-stat from being the problem, but now you need to remove the wiring from the ...
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| AC Power box switch and fuse are gone | 6/27/2008 |
Q: I bought a foreclosure that was badly vandalized. The walls were kicked in and some electrical ...
A: It is odd that the t-stat has no display. I am going to guess you have a split system. Considering ...
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| new central ac system | 6/26/2008 |
Q: I am totally confused. My townhouse is 1200 sq feet, 3 levels, one is a finished basement. My 21 yr ...
A: "You said the larger coil will not help with my upstairs issue and I appreciate your suggesstions on ...
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| Condo AC dripping problems | 6/26/2008 |
Q: I live on the top floor of a 4 story condo building with central air. My neighbor from directly ...
A: It is possible if all the units tie into one common drain. If the common drain is backed up after ...
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| Lennox A/C heat pump stopped working | 6/26/2008 |
Q: We have two Lennox A/C heat pumps and a furnace for each. One of the A/C units outside stopped ...
A: The power inside the cond. unit needs to be checked. There has to be 220v and 24v to the contactor. ...
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| Gibson Central Air Copper Line to Unit Freezing up | 6/25/2008 |
Q: We live in a duplex and have a Gibson Unit that is used for our heat as well as our AC. One day the ...
A: Common problems for line freezing up. Dirty filter Low air temps Low on refer... leak(s) Poor air ...
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| new central ac system | 6/25/2008 |
Q: I am totally confused. My townhouse is 1200 sq feet, 3 levels, one is a finished basement. My 21 yr ...
A: To start off with, I would not replace the furnace. For cooling, the only thing the furnace will do ...
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| Heat pumpt | 6/24/2008 |
Q: I have a forced air fuel oil furnace about 8-9 years old. My house is 1152 sq. feet. No A/C. I ...
A: Adding a heatpump is a good way to save on oil. Granted heatpumps will on work until the outside ...
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| air handler | 6/24/2008 |
Q: My air handler is in the attack and has a pan below it with an automatic shut off. It has been ...
A: You need to keep trying to clean out the drain. Pour some bleach down it to see if that helps. It ...
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| Heil 5000 AC | 6/24/2008 |
Q: I have a Heil DC90 furnace with a Heil 5000 AC. The AC suddenly stopped blowing cold air. The ...
A: You noticed the fan was running, but did not notice if the compressor was running? You might hear ...
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| Air conditioner | 6/11/2008 |
Q: I have a lennox value series a.c. unit. Today the house wasn't being cooled, and when I checked the ...
A: The humming was likely the the contactor. The contactor gets power for the coil from the air ...
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| trane vs goodman | 6/11/2008 |
Q: I,m having a central air unit installed and deciding which unit to purchase. I have it narrowed down ...
A: In my humble opinion, Trane is a better unit then Goodman. You need to compare the warranties, and ...
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| Oil Trap for split system | 6/11/2008 |
Q: I am installing a split system in my house. The evaporator is in the ceiling and the compressor is ...
A: You do not need a trap because the evap coil is higher then the compressor. If you have a heat ...
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| A/C Comes on When Vent Hood On | 6/10/2008 |
Q: I recently had central air installed. After the installers left I noticed that whenever my range ...
A: If your a/c unit is the source of the make-up air, then it make sense for it to come on. If you are ...
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| Unit size and SEER rating | 6/10/2008 |
Q: Our 11 year old 5 ton 10 Seer rating a/c just went out. We have thought that perhaps the unit was ...
A: To start off with, you will not be able to get a 6 ton unit. Anything over 5 tons is considered ...
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| AC runs constantly | 6/10/2008 |
Q: I have a Comfortmaker (RPJ - III) that is about 8 - 9 years old and it takes about 4 - 5 hours to ...
A: Some units have multible speeds. Your unit might have a multi-speed fan, but would require moving ...
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| house not cooling | 6/10/2008 |
Q: I have only had this a/ac for three years and on really hot days i can not get the temp in the ...
A: Where is the gauge? Is it on the copper lines that go to the unit. If it is, what I believe it is, ...
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| Home Central Air problem | 6/9/2008 |
Q: I noticed this evening that my compressor fan was humming, but not spinning so I poked a small ...
A: The cond fan not running due to the bad run cap can cause other probems with the system. If the fan ...
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| Cost of System | 6/8/2008 |
Q: Craig, I received a quote on installation of: 100k BTU upflow 80% Furnace 17-1/2 inches wide 4 ton ...
A: It is very hard to price out systems sight unseen etc. I would have to say that the price you have ...
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| HVAC security | 6/8/2008 |
Q: I have to have a complete HVAC system that replaced due to theft. I need to know if there are any ...
A: I am not aware of any already made. People that need that type of work find a local metal worker to ...
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| heil 2.5 ton gas pack filter | 6/8/2008 |
Q: how do I replace the main filter on a gas pack and how often. the room filters are changed and it ...
A: If you have filters in the grilles in the room, then you do not need a filter in the unit. You ...
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| is a/c working alright (new unit, new house) | 6/7/2008 |
Q: i have a new house, new a/c and furnace unit and just turned on the a/c for the first time (it's ...
A: Yes, the unit outside should be running, the compressor should be humming and the fan a spinning. ...
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| blower motor | 6/7/2008 |
Q: I am replacing a motor on a york furnace/aircondtioning split unit. the old motor had white and ...
A: The motor you bought is a three speed motor. The brown and brown white go to the run cap. If I ...
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| Air conditioning | 6/7/2008 |
Q: I moved into an apartment about a month ago. I live in Ohio. The apartment has a central air ...
A: There is a limit to how much a unit will cool. The age and the size of the unit is a major factor. ...
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| a/c not cooling properly | 6/7/2008 |
Q: I have a 1940 year house that I purchased two years ago. A/C cooling great, even though I have a ...
A: Since you did not state they found anything wrong, then there is a good chance the unit is just not ...
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| Duct Booster Blower? | 6/6/2008 |
Q: Like many, I have two floors and one unit, and the second floor is not cooling properly. Our heat ...
A: The first thing you need to do is check the insulation in the attic. You might need to upgrade, ...
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| Charging a Air Conditioner | 6/6/2008 |
Q: I recently had central air put into my home. My neighbor watched the tech braze and charge the ...
A: The heat from brazing causes the copper to oxidize inside and outside. Nitro will stop this from ...
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| AC not blowing alot of air thru some vents | 6/6/2008 |
Q: I turned on my central air unit today and notice that some vents are blowing little air while some ...
A: It could be any number of things. Do you notice any ice on the copper lines coming out of the ...
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| Air conditioner not blowing | 6/5/2008 |
Q: When my AC is on, only 2 vents in the house have air blowing out pretty good. All of the rest hardly ...
A: It could be any number of things. Have you checked the filter lately? A dirty filter will restrict ...
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| blower cycling on/off | 6/5/2008 |
Q: I have a Trane XL80 with a Trane XL1200, pretty sure anyway. But when I turn on the a/c the outdoor ...
A: I am guessing you are refering to the indoor blower...If you switch the fan switch on the t-stat to ...
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| Leaking Evap Coil | 6/5/2008 |
Q: We replaced the outside unit of an old split heat pump (~20 years old) approx. 2-3 years ago. Our ...
A: If the unit inside is 20+ years, likly is not even 10 SEER. Considering the age for one thing, and ...
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| Frozen Air Handler | 6/3/2008 |
Q: The accordian-like, foil-looking filter inside the air handler develops a build-up of 1/2 inch ...
A: Common problems for icing... low on refergeriant (leaks) dirty coils (may not be able to see that ...
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| Issues with flexible hvac ductwork in new home being built | 6/3/2008 |
Q: I am currently having a home built in Bluffton, SC. The HVAC contractor is using flex HVAC ductwork ...
A: 1) Running the ducts higher in the attic vs. lower...I am not sure how much of a difference that ...
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| Hot air around the return grill | 6/3/2008 |
Q: My central unit is 2 yrs old and has never worked properly. It's a 4 ton. Hot air seems to be ...
A: Sight unseen is is hard to say, but I would be looking to see if hot air from the attic is getting ...
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| No power to t-stat/ no a/c | 6/2/2008 |
Q: I have a 4 year old carrier 38YCC heat pump. The a/c quit working and I saw that the digital ...
A: Considering the fact you did not tell me the unit was in the attic, I know have a better answer. ...
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| 3rd Floor Air Conditioner | 6/2/2008 |
Q: I live in an old 1920 house. The attic was probably finished 40+ years ago. The attic has its own ...
A: Common problems for icing... low on refergeriant (leaks) dirty coils (may not be able to see that ...
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| ac evaporator | 6/2/2008 |
Q: I need to find an evaporator for a mobile home. Brand name in Inthertherm. Model number is ...
A: You can search the net for "intertherm parts" or "nordyne parts". Both units are made by the same ...
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| To warm in the house after service done | 6/1/2008 |
Q: I have a Goodman A/C unit 4 ton for 2000 sq feet under air home. I live in Florida and keep the temp ...
A: To start off with, I use a temp gun. They are close, but not nearly accurate enough. I would have ...
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| Air Handler | 6/1/2008 |
Q: We have had an ongoing issue for a few months. Our A/C is set and everyday(if not several times a ...
A: If the drain overflow swith is open, then the unit should not run at all, including both the indoor ...
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| Variable speed motors | 5/31/2008 |
Q: I have been quoted two prices for a 5 ton Coleman 13 Seer Horizontal Heating and Air conditioning ...
A: It is very unlikly you will save 2000 over the next five years to cover the cost of the motor. It ...
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| A/C Fan Motor will not start on its own | 5/31/2008 |
Q: A/C Fan motor was not coming on. Replaced with recommended replacement fan motor and capacitor. ...
A: It seems you have the motor wired wrong. It is acting like there is no run cap connected. The new ...
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| Replace coils or new unit? | 5/31/2008 |
Q: I have a 3 1/2 ton Rheem gas heat/electric cool combo system on the outside of my home. The ...
A: I would recommend replacing the unit. If you are low on cash, then replacing the coil might be ...
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| CHOOSING A SYSTEM | 5/30/2008 |
Q: Help!! We are trying to choose a new system for our upper floor. Our coil went bad on our Bryant ...
A: An r-22 unit and a R-410 unit, with the same SEER rating should use the same amout of power to run. ...
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| Not Cooling | 5/30/2008 |
Q: Just got a brand new unit inside and out. The supply air is about 69 degrees. Went out side to see ...
A: The leave air temp is not enough for me to work from. It could be any number of things wrong. In ...
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| Carrier Fan part #38TH060300 | 5/29/2008 |
Q: We replaced the inside heat exchanger les than 2 weeks ago. We just did not feel we could come up ...
A: Well, 3200 is better... The best place for homeowners would be the net. Most places where we in the ...
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| Emergancy heater runs whne AC is on | 5/29/2008 |
Q: I have the AC on but the emergency heating element is still on and the unit is putting out hot air. ...
A: It would appear the relay that controls the heat is either stuck or some wires are shorted from the ...
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| Carrier Fan part #38TH060300 | 5/29/2008 |
Q: We replaced the inside heat exchanger les than 2 weeks ago. We just did not feel we could come up ...
A: 32K???????????????? WHAT!!!!!! Something does not seem right. To replace a 5 ton cond unit should ...
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| Bryant heat pump and the snake | 5/28/2008 |
Q: I have Bryant heat pump model 697CN042-b that no longer runs. It seems that a black snake crawled ...
A: You need to check to see that you have 220-240 volts (main power) and 24 volts (control power) in ...
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| air condition transformer | 5/28/2008 |
Q: Every year and sometimes every other year, we have to replace the transformer that controls the air ...
A: I have never heard of transformers failing this much. You need to have the area around the control ...
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| HVAC not cooling & dimming lights | 5/28/2008 |
Q: My A/C has quit cooling. Air is coming from the vents but it is not as cold as it should be. The ...
A: The dimming lights can be normal. A hard start kit is installed on the compressor can help with the ...
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| Lennox Condenser Fan Problems | 5/28/2008 |
Q: Condenser fan shutting off, compressor stays running. Replaced fan with new universal motor with ...
A: In order to know what ia going on, you have to have a ampmeter. There is no way around this. You ...
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| ice forming on HVAC condenser | 5/27/2008 |
Q: I opened up my Tempstar unit (outside gas pack, 1994 model); melted the ice, vacuumed and blew out ...
A: Ice can occur for any of these common problems... low on refergeriant (leaks) dirty coils (may not ...
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| will this A/C unit work | 5/27/2008 |
Q: My current A/C unit is making a bad noise and doesn't cool as well as it should. I think it is as ...
A: If you have two units, one for up and one for down, then it might do half the home. If you only ...
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| AC Unit | 5/26/2008 |
Q: My outside unit will not turn on, the inside works fine but the condenser fan outside will not work. ...
A: The only way you will figure out what is happening is to get into the unit with a meter and find out ...
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| 2 ton condenser with 3.5 ton evap | 5/26/2008 |
Q: Can I operate a Heil 2 ton (24000 btu), 13 seer condenser unit with a 3.5 ton Trane evaporator/air ...
A: I think you migh be pushing the difference a bit too far. You will likely not get the ...
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| ac stopped working | 5/25/2008 |
Q: When I woke up this morning my ac was on but not blowing any air. I checked the fan outside and it ...
A: I would cycle the a/c breaker(s) to see if that fixes the problem. You might also have a plugged up ...
|
| Water in secondary overflow pan | 5/25/2008 |
Q: I have the usual primary drain (that exits into the sewer system) blockage causing water to flow ...
A: It could blow back into the unit, but it might also help to clear the line. I find you might be ...
|
| Fan wont turn | 5/25/2008 |
Q: We have a split unit 2.5 ton central heat and air unit. We have just turned on the unit to try and ...
A: If the fan is not working, then you have a problem. It could be a bad fan motor, run cap or both, ...
|
| freezing up copper lines outside | 5/25/2008 |
Q: we just brought a brand new ducane 4 ton unit and inside coil...may 22,2008..it has frozen up serval ...
A: If the unit is freezing up, and it was just put in, then I would say the installer did something ...
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| 2 story home, Carrier with 3 zones | 5/23/2008 |
Q: We bought a brand new home last June and walked into a whole year's worth of problems with our Heat ...
A: You seem to have alot of problems, and I would guess it is the installer. My home was built in ...
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| Central Air Conditioner | 5/23/2008 |
Q: Upstair unit is running but no air blowing out of the vents. Any suggestions?
A: The problem could be a completely frozen coil. If the fan is working, that would be a likly reason. ...
|
| trane xl80 2 stage gas furnace | 5/22/2008 |
Q: when the thermostat calls for heat,the fan blows but nothing lights.The LED diagnostic light flashes ...
A: You need to verify with a meter that the high limit circuit is closed. You could have a bad board. ...
|
| oil problems maybey? | 5/21/2008 |
Q: 2ton unit had it's water shut to it's water cooled condenser. the high pressure cutout failed , so ...
A: I oil is likely to be in the evap, or in the suction lines. Oil will move with the liquid refer. ...
|
| Air Conditioner | 5/20/2008 |
Q: I am having problems with the air flow, I have changed the filter cleaned the outside unit and clean ...
A: If you are find ice, you have a problem. Any of the following things can cause the coil to freeze ...
|
| AC Compressor | 5/20/2008 |
Q: I have a Tempstar Smart Comfort 2400 AC compressor that stopped working the other day. I'm ...
A: Green is normally ground, so I doubt the blue is going to be a ground wire. If I remember ...
|
| hvac | 5/19/2008 |
Q: I am replacing my existing hvac and have quotes from York, Bryant and Lennox. Which one has the best ...
A: I would say they are all pretty much equal. As long as the unit is installed properly, you should ...
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| A/C Unit will not come on | 5/19/2008 |
Q: I just tried to turn my A/C for the first time this year and it will not come on. I had this ...
A: I do not understand the three wires. Normally there are the main wires in a flexable conduit ran ...
|
| do it yourself freon charging | 5/18/2008 |
Q: Is it possible to learn how to add freon to an central a/c unit as a do-it-yourselfer? I had my a/c ...
A: This is not for the do-it-yourselfer. It requires training to know how much you need and what to ...
|
| A/C | 5/18/2008 |
Q: We have a RUUD model #ZR34K3 that will only hum when the thermostat clicks on. Not only does the ...
A: The contactor that is inside the unit gets power from the air handler. If the indoor fan is ...
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| gmnt-100-4 | 5/18/2008 |
Q: Our furnace, the Goodman model above, is down. The breaker had tripped. When reset the furnace fan ...
A: I believe Goodman makes the unit and puts the Amana name on the unit. I have never heard of ...
|
| AC Coil problems | 5/17/2008 |
Q: I was recently told that one of the coils in one of my air handlers (in the attic) was leaking ...
A: I have seen coil run in the 500-1000 range or so. If the coil costs 400, there will be mark-up. ...
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| A/C | 5/17/2008 |
Q: We have a RUUD model #ZR34K3 that will only hum when the thermostat clicks on. Not only does the ...
A: When the t-stat calls for cooling, do you hear a click outside by the unit. I it possible you do ...
|
| QUIET AC for small studio | 5/16/2008 |
Q: I need to install AC or ventilation in a small outdoor office which will become a recording studio. ...
A: There really is no cheap way for quiet. The best you are going to do is a mini split. You can set ...
|
| Pump down of central Air | 5/16/2008 |
Q: If you put gages on the central air unit and pump the charge into the condenser unit what pressure ...
A: You need to pump down the system to 30"vac. Unless you have a leak, then 0 is good. You you will ...
|
| No Cool air | 5/16/2008 |
Q: We had a Trane XL1200 installed 2+ years ago. It has worked fin up to today. First 100 degree day ...
A: The only way one will determine what is wrong is to get a meter and check to see that you have power ...
|
| Condenser fan hum | 5/14/2008 |
Q: I have a Trane XE1200 with a TWP030C100A4 condensing unit. When cutting the lawn I noticed a hum ...
A: Your unit is a heatpump, and most heatpumps have a crank case heater on the compressor. This could ...
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| high pressure fault | 5/14/2008 |
Q: a 2 ton recip compressor unit had a water cooled condenser valve accidently shut off. the unit ...
A: The compressor has internal thermo protection, so the compressor wil shut off it is gets to hot. ...
|
| Replace Evaporator coil and drain pan $2,900 | 5/8/2008 |
Q: All I would like to know is if it is a fair price to have the evaoporator coil and drain pan ...
A: I believe the question about the 800 was for the cost of labor only, because the coil was under a ...
|
| filter replacement | 5/8/2008 |
Q: We have a Gibson heating/cooling unit (air to air) with a sticker on it that says model # ...
A: Thats odd. I went and located what I believe is a picture of your unit on the net, and noticed the ...
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| HVAC Reccommendations | 5/6/2008 |
Q: We are shopping for a new HVAC unit for our ranch style home (2900 sq ft) in Los Angeles. Which ...
A: Here are five....there are a few more depending on where you live too. Trane/American Standard, ...
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| repair or replace | 5/6/2008 |
Q: My a/c low pressure switch shut unit down, needed a lot of freon ($120 at cost). Cause is severely ...
A: You should be able to just replace the coil and condenser. You can not legally keep adding R-22 to ...
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| $800 Labor for evaporator coil replacement? | 5/6/2008 |
Q: I live in Texas and am in a 1/2 year old home, and the A/C started blowing warm air. I called out a ...
A: I am very surprised the unit is not cover for one year parts and labor. You should attempt to track ...
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| American Standard Heat Pump Quit | 5/5/2008 |
Q: My heat pump stopped cooling yesterday. When I checked the outside condensing unit, the compressor ...
A: Because of the way the motor is made, you should see a resistance between all of the wires. I would ...
|
| line set brazing | 5/5/2008 |
Q: Craig, Will brazing a residential A/C line set with a Turbo torch be good as Oxy/Ace torch...... ...
A: I am not sure what you mean as good...The turbo is able to get the pipe hot enough to melt the ...
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| AC not blowing cold air and fan stays on | 5/5/2008 |
Q: 2 days ago the hvac unit was blowing extremely cold, so turned the t-stat to off, but the fan ...
A: With that tid bit of info and before you call. Check the breakers for the a/c. Turn them off, and ...
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| American Standard Heat Pump Quit | 5/5/2008 |
Q: My heat pump stopped cooling yesterday. When I checked the outside condensing unit, the compressor ...
A: There is something that stands out here.. You need to check the compressor contactor. The fact the ...
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| AC not blowing cold air and fan stays on | 5/4/2008 |
Q: 2 days ago the hvac unit was blowing extremely cold, so turned the t-stat to off, but the fan ...
A: It appears that the relay that turns the fan on and off is bad. This relay can be a stand alone, or ...
|
| Rplacement central a/c wall unit for condo | 5/4/2008 |
Q: I need to replace a central ac unit for the condo, who do I call, this condo is 32 years old and it ...
A: There are wall hung package units still made, doe it look like anything like the on pictured in this ...
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| A/C at new bonus room | 5/4/2008 |
Q: I plan to build a bonus room (21'X21') above my garage, with 6' walls and ceiling sloping upward to ...
A: First off, you need to determine how much a/c you are going to need for the space. A manual J will ...
|
| heat pump frosting | 5/3/2008 |
Q: for the last few months even at above freezing temperatures my heat pump completely frost all over. ...
A: To be honest, I am surprised you have an air source heat pump. You appear to live in a climate that ...
|
| Replacing the ac unit | 5/3/2008 |
Q: I received 2 estimates to replace the ac unit w/ heat strips; First was a Trane XR13 air handler 2 ...
A: To start with, I would get a couple of more estimates with other brands. Trane does make a nice ...
|
| Lennox 10ACB24-9P corroded condenser fins | 5/2/2008 |
Q: I have a Lennox 10ACB24-9p central air unit. My dog has urinated on the fins and corroded them to a ...
A: For the most part, the brand of the inside unit and outside unit does not matter. There are cases ...
|
| Best Central AC brands | 5/2/2008 |
Q: I live in the Gulf Coast are and will be replacing my central ac system soon. I am looking for what ...
A: Well, I will do my best, because it is not all what it seems to be... Trane/American Standard, ...
|
| Central AC | 5/1/2008 |
Q: I am looking to install central air in Denver, Colorado. I have had several companies come out and ...
A: This is kinda a mess...so follow along. Trane is a great unit, but the most expensive... Bryant ...
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| heat pump frostinf | 5/1/2008 |
Q: for the last few months even at above freezing temperatures my heat pump completely frost all over. ...
A: It is normal for the coil to frost up, and the weather cond. will also play a role in the rate in ...
|
| question on ac | 4/29/2008 |
Q: Just tried to use Air conditioner for first time this year. Everything seems to work properly but no ...
A: Do you have a heatpump? If you do, it could be in heat mode. If not and the both fans and the ...
|
| low liquid line pressure | 4/29/2008 |
Q: I had the Bristol compressor on a Goodman ck 24 (15 years old) go out on me. Replaced it with a ...
A: A scroll is going to be more tall and round then short and oval shape. You did not mention, but if ...
|
| low liquid line pressure | 4/29/2008 |
Q: I had the Bristol compressor on a Goodman ck 24 (15 years old) go out on me. Replaced it with a ...
A: It sounds like one of three things happening...if it is a scroll, then it could be spinning ...
|
| ac | 4/28/2008 |
Q: It has just started to get hot and I have not ran the ac for year. I started using it and now it ...
A: Take a look at the cond. pump, and see if there are control wires connected to the pump. There will ...
|
| problems with AC turning on | 4/28/2008 |
Q: Year old Honeywell programmable thermostat is properly hooked up - 24V generated across all wires. ...
A: The problem is probably not to be the stat. You have something in your control circuit that is ...
|
| Replacing a 3 ton A/C compressor | 4/27/2008 |
Q: I have a Lennox HS19-411V-3P air conditioning unit built in 1989. The 41,000 BTU compressor didn't ...
A: It would not last very long. The voltage is likely to know be correct and running a 50hz at 60hz ...
|
| gunk in a/c condensate line? | 4/27/2008 |
Q: I noticed our unit- which normally cools to whatever temperature we set it at- was not cooling. The ...
A: Dirty air filters, dirty coil, low on refer. due to leak, poor air flow and other mech problems ...
|
| AC not cooling | 4/26/2008 |
Q: I have Lennox G40UHX Model, with summer starting we switch to cool, and found out it is working for ...
A: Your unit icing up is the problem and will cause the air to stop moving. Dirty air filters, dirty ...
|
| ac | 4/26/2008 |
Q: It has just started to get hot and I have not ran the ac for year. I started using it and now it ...
A: The condensate pump is likely not the problem. The pump contains a switch to turn the cond unit off ...
|
| HVAC Wiring / Troubleshooting | 4/25/2008 |
Q: I was asked to install a programmable thermostat in a building for a central gas heater/ compressor ...
A: It very well could be a bad t-stat. If the t-stat does not use batteries, and you do not have 24v ...
|
| Rheem A/C - outside unit fan | 4/25/2008 |
Q: The fan on my Rheem unit will not come on. The compressor runs for a few minutes, overheats, and ...
A: You need to check the fan motor, fan run cap and the wiring to the fan motor. The motor is likely ...
|
| HVAC Wiring / Troubleshooting | 4/25/2008 |
Q: I was asked to install a programmable thermostat in a building for a central gas heater/ compressor ...
A: Did you by chance note what wires went where on the old stat? As I do not know, you may have a dual ...
|
| rheem heat pump short cycling | 4/23/2008 |
Q: I have a Rheem RPKB heat pump that was installed almost two years ago. It now appears that the ...
A: Unless you use some sort of fuel, you do not have a furnace. With a heatpump you have an air ...
|
| rheem heat pump short cycling | 4/22/2008 |
Q: I have a Rheem RPKB heat pump that was installed almost two years ago. It now appears that the ...
A: There normally is not much restiance on the contactor coil. Normally just a few ohms. When the ...
|
| rheem heat pump short cycling | 4/22/2008 |
Q: I have a Rheem RPKB heat pump that was installed almost two years ago. It now appears that the ...
A: My advice would be not to do anything to the unit. It is covered by a 5 year warranty, and if you ...
|
| replacing ac capaitor | 4/22/2008 |
Q: my compressor is coming on, but the fan motor was not spinning. I replace the fan motor but it is ...
A: This is important and I tell everyone. When you buy a new motor ALWAYS buy a new run cap. The run ...
|
| HVAC replacements recommendations | 4/21/2008 |
Q: I bought a 3-level townhouse that was built in 1977 (approximately 1200 sq). It has the original ...
A: Unfortantly, nothing is cheap anymore. The price of material is climbing, as is the refergeriant. ...
|
| AC Contactor and coil | 4/20/2008 |
Q: when I enable the cooling cycle on my thermostat the contactor closes allowing the compressor and ...
A: The likely problem is one of the safties in the cond. unit is tripping the unit out. You need to ...
|
| Kenmore furnace air cleaner | 4/20/2008 |
Q: Craig, We purchased our air cleaner about 13 years ago because I have year round allergies and ...
A: To be honest, it really does not matter why kind of filter you use, what matters is how much it will ...
|
| Return air duct | 4/17/2008 |
Q: I just had our home warranty company send out someone to look at our return air duct work in the ...
A: Please understand, it is hard for me to counter the position the mech as taken, because I have not ...
|
| Trane Weathertron controller | 4/17/2008 |
Q: I am trying to replace the above old mercury switch Trane Weathertron controller (which still works) ...
A: Normally, these are easy to wire up. Assuming you have just elect. heat and straight cool (no heat ...
|
| ACcoil/condensor | 4/16/2008 |
Q: I have an ADP coil that was new in 1999 i believe.the model # is HA02230E137B120567 ...
A: This link is the spec. sheet for your coil. ...
|
| Thermostat placement | 4/15/2008 |
Q: We own a tri-level and had a new heat pump installed 1 1/2 years ago. I'm beging to wonder if the ...
A: Yes, the thermostat can be affect by the kitchen and the front door. It is hard to say if it will ...
|
| Problem with my AC/Heat system | 4/15/2008 |
Q: I've got this problem that my thermostat of my AC/Heat system is on but the none of the vents are ...
A: Somewhere in your home, there is going to be a metal panel with a door on it. The breakers are in ...
|
| INDOOR UNIT | 4/14/2008 |
Q: hell-o I have worked on a/c back in the 70s. What I would like to know is I would like to clean the ...
A: I am going to guess your unit is going to have two panels. The panel that you found the elect ...
|
| Cutting Oil Bill Costs | 4/13/2008 |
Q: We have a 15-year-old oil furnace with hot water built into it. There are just two of us in the ...
A: If you are going to shut down the boiler, you need to find something better then the emer. circuit. ...
|
| Central A/C - not cooling down | 4/13/2008 |
Q: Re: Goodman - new with house, installed about October 2003. Thermostat is set at 70, but this PM ...
A: From what you have told me here, I do not see any obvious problems. You are going to need to get ...
|
| Circuit Breaker Trips when the Outdoor Unit Starts | 4/13/2008 |
Q: I have a Bryant split system heat pump. Yesterday when I turned on the AC, the outdoor unit did not ...
A: I am sorry to tell you, but chances are your compressor is bad and is going to need replaced. I ...
|
| Water in house floor vents | 4/12/2008 |
Q: We are having alot of rain and flooding in Oklahoma and now there is water in 3 of our house floor ...
A: Grout that is used to fill voids is a cement base, but it is watered down so it will flow more like ...
|
| No Cold Air | 4/12/2008 |
Q: I have two Amana Heat Pump units. One is a 3-ton that covers the main floor and basement of our ...
A: Check to see if the cond. unit is running. If it is running and blowing cold/cool air, then I would ...
|
| Thermostat and evaporator malfunction | 4/11/2008 |
Q: My thermostat triggers the evaporator to begin running prior to reaching the temperature set. The ...
A: Normally when the t-stat calls for cool, it will turn the fan and compressor on together though the ...
|
| Heat pump AC troubleshooting | 4/11/2008 |
Q: My Ac runs but does not cool, there is frost building up on the tubing going to my outside unit. ...
A: It is a problem, but there are multible things that can cause your problem. Dirty coil, dirty ...
|
| Replacing unit | 4/11/2008 |
Q: I currently have a Kenmore central air unit (model #HAC036AKA1) that the compressor went out on,I ...
A: You have no choice but to go 13 SEER. The feds have said that 13 SEER is the min. that can be sold ...
|
| Rheem heat pump | 4/10/2008 |
Q: I have a early 80's heat pump that I put a new fan motor and capacitor on the air handler about 2 ...
A: I am going to guess you verified you had voltage going to the air handler. I have seen where cond. ...
|
| Water in house floor vents | 4/10/2008 |
Q: We are having alot of rain and flooding in Oklahoma and now there is water in 3 of our house floor ...
A: Putting the ducts in the attic will be a big plus to keep the air from getting into the ducts. Then ...
|
| curicut board fuss blows when i call for cooling | 4/9/2008 |
Q: I notice that my thermostat wire leading into the air handler was melting on the outside when I put ...
A: You need to determine what the problem is before you start replacing parts. I would start by ...
|
| a/c banging noise | 4/9/2008 |
Q: I bought a new house almost 2 years ago. My upstairs unit is a 3 ton Ruud split unit. We've had ...
A: To start with, the mismatched seer ratings is not a big deal and will not affect the way the unit ...
|
| enclosing a central air compressor | 4/9/2008 |
Q: i am enclosing my central air compressor with a pine wood 2 sided "fence"- are there any issues ...
A: I am not sure what you mean by two sided. Generally, installing anything around units is a bad ...
|
| 2 pole contactor | 4/8/2008 |
Q: Craig I ordered a contactor for my rheems central air. Problem is I ordered a 2 pole 24v 30amp and ...
A: . it was important to know that because if you had an oil heater, because the double pole may not ...
|
| HVAC system type? | 4/6/2008 |
Q: We recently replaced our thermostat and after we did the unit wuld heat instead of cool. I thought ...
A: If the suction line (bigger line) is freezing up, then you need to make sure the indoor blower it ...
|
| central a/c unit leaking | 4/6/2008 |
Q: I live in Florida and we have a 2 ton, York, central a/c-heating unit that is installed in the ...
A: I could be a couple of things. It is not normal for the pan to get water in it. I would be ...
|
| Rheem 10 SEER noisy compressor | 4/5/2008 |
Q: My rheem 10 SEER unit is 9 years old. Last year the red wire burnt off of the lug connecting the ...
A: If you are going to have a new cond unit with R-410A then you will have to replace everything. You ...
|
| Rheem 10 SEER noisy compressor | 4/4/2008 |
Q: My rheem 10 SEER unit is 9 years old. Last year the red wire burnt off of the lug connecting the ...
A: I would not replace the compressor until you know for a fact it is bad. The compressor is not the ...
|
| tiny apt- HVAC? | 4/4/2008 |
Q: My apartment is a tiny 480 square feet. Are there any 1 ton HVAC units out there or should I just ...
A: There are units on the market all different sizes. I am not sure what you have now, but you should ...
|
| 2 small HVAC or 1 HVAC Zoned ? | 4/4/2008 |
Q: I know you can't give me an EXACT price but could you give me an ESTIMATE OF A NEW HVAC SYSTEM for a ...
A: I do not do pricing on this site. I have no clue on what you will need and what it takes to get the ...
|
| frozen AC | 4/1/2008 |
Q: Our AC stopped working. The unit outside still runs but I noticed when I look inside of it there is ...
A: There can be many reasons for a unit to freeze up. There is not much you can do or replace without ...
|
| booster fans | 4/1/2008 |
Q: Craig, I have added a patio enclosure to the rear of my home. I would like to keep my french doors ...
A: If you were to use a booster fan, you will likely just push more hot air into the home. The a/c is ...
|
| Plenum heating | 3/31/2008 |
Q: Hey there, I am designing a small commercial mushroom grow-room of 700 cubic feet. It is insulated ...
A: Your are going to have to install "med temp" refer. system, and not just an a/c unit to get the ...
|
| armstrong Ultra III heater | 3/31/2008 |
Q: I have a Armstrong Ultra III heating system I have no clue where filter goes
A: There is normally a slot located on the inlet side of the unit. It may require you to remove an ...
|
| cold basement | 3/30/2008 |
Q: Can two thermostacts be wired in to the hot air furncae. I have an wood insert upstairs which won't ...
A: You can wire two t-stats to a unit so long as they are wired in parallel. Doing that sort of thing ...
|
| freeze up | 3/30/2008 |
Q: when i turn my york ac to bout 69 the lowest i go.It freezes up and starts blowing cool or hot air ...
A: Most units are not designed to work that cold, and it will freeze up. The outdoor temp can play a ...
|
| air handler | 3/30/2008 |
Q: The air handler outside my townhouse stopped working. At the same time the oven and my washing ...
A: You have an electrical problem. All of those devices (assuming they use elect. and not gas) work on ...
|
| fridge and A/C | 3/29/2008 |
Q: I'm having a run on broken items this week (my blow dryer too, but I'll buy new :-) - my A/C died, ...
A: As far as the a/c goes, it sounds a bit confusing as to what have. You say you have a furnace, but ...
|
| Thermostat Wiring | 3/28/2008 |
Q: Need help: Installing a Honeywell digital/universal thermostat (RTH7400) onto existing wiring for a ...
A: I refer to this link... http://toad.net/~jsmeenen/wiring.html It keeps me from having to type it ...
|
| Goodmans m#gmt070-3 nothing happens. | 3/28/2008 |
Q: I have a Goodman m#GMT070-3 furnace and everytime i try to turn on the furnace nothing happens. What ...
A: The problems could be many. I would check the breaker(s). Turn the breaker(s) off then on again to ...
|
| air condition help | 3/28/2008 |
Q: i had a local company design and install a new a/c system in my home. it was done in 2003 spring ...
A: If the duct is cold enough from being in the attic, when the warm air from the furnace passes ...
|
| Gas furnace sizing | 3/27/2008 |
Q: I have a 32 year old Rheem 140000 BTU horizontal gas furnace that probably should be replaced. ...
A: Humm...it hard to say what your unit was designed at. Just about anything more the 20 years old was ...
|
| Heat Pump Auxillary | 3/27/2008 |
Q: We have a Comfortmaker Heat pump. Approx 4 yrs old. The outside temperature the last few night has ...
A: All heatpumps have to go though a defrost. Most likely the unit is going through a defost cycle for ...
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| Purchasing A/C Heat Pump System | 3/27/2008 |
Q: I am trying to purchase a system with seer 14+. I have three companies out selling Trane, Tempstar, ...
A: Tempstar is made by ICP. Frigidaire is made by Nordyne. Trane and Carrier are made by Trane and ...
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| central ac | 3/26/2008 |
Q: i need to replace my condensing units.(2 zones) my system is 14 years old. should i also replace the ...
A: I would replace everything, that way you will get the most effiency out of the new units. Heat ...
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| hvac problem | 3/26/2008 |
Q: I hope you can help me or lead me in the right direction. A year and 1/2 ago we had a high ...
A: I do not think the problem is with the A/C system, but the house itself. Most of the dust you see ...
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| Gas furnace sizing | 3/26/2008 |
Q: I have a 32 year old Rheem 140000 BTU horizontal gas furnace that probably should be replaced. ...
A: The efficiency of the unit has nothing to do with the amount BTU's it will produce. The efficiency ...
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| High electricty bill, A/C | 3/25/2008 |
Q: The house is 20 years old we have lived here 11 years. Last 3 years our electric bill in summer is ...
A: You did not say, but I am guessing the unit is 20 years old. It has seen its better days, and needs ...
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| room over the garage | 3/20/2008 |
Q: I have a 210 square foot "bonus" room over the garage. It has been finished and has 3 supply vents ...
A: You have been mislead...You should consider installing a ductless minisplit. Just googe search ...
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| large room exhaust fan | 3/19/2008 |
Q: I am the chairman of a fellowship which has a meeting hall with two large gathering rooms in the San ...
A: With the right contractor and the right controls you should be able to get a fan that will work. ...
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| Thermostat Compatability | 3/18/2008 |
Q: I recently installed a Honeywell RTH7500 Programmable digital thermostat (replacing a White-Rodgers ...
A: You did not mention how long it will run, but I get the idea that it will run and heat some, but not ...
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| air handlers | 3/18/2008 |
Q: What is a better unit? A 4 ton American Standard or a Nordine/Gibson 4 ton air handler. What are ...
A: Flip a coin. I would say they are about the same. Some will say one is better then the other. I ...
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| Condensate Line is Warm | 3/17/2008 |
Q: We had a warm day today in Houston (80+) so it seemed like a good time to test my AC system for the ...
A: "but the large 3/4" copper line exiting the unit stays warm, then I need refrigerant?" Not all of ...
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| RUUD 16 kW Electric furnace sequencers | 3/16/2008 |
Q: First, thanks for taking the time to read this. My question is about what should be the life ...
A: It can vary, but I have seen them last 15 years or more. The will also have a cycle life, but they ...
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| Thermostat Compatability | 3/16/2008 |
Q: I recently installed a Honeywell RTH7500 Programmable digital thermostat (replacing a White-Rodgers ...
A: Your unit will work with any thermostat out th |
