| Subject | Date Asked |
|
| Broan bathroom heater | 10/28/2009 |
Q: I don't know if this is within your expertise, but I have a Broan bathroom heater in the wall, model ...
A: Coleen, sometimes electric heaters have a smell of burning dust when they haven't been used in a ...
|
| Trane Vs Rheem | 10/28/2009 |
Q: We just bought a house with an 18yr old Trane furnace that has a cracked heat exchanger. We've had 3 ...
A: Stephanie, The difference between those brands is Trane uses a variable speed draft motor where ...
|
| heater side of a/c unit won't work | 10/28/2009 |
Q: we have a dual pack a/c-heater unit that sits on the roof. It is a trane 3-ton. It is less than 3 ...
A: Phil, this could be several issues. Might want to check obvious things like make sure the gas is on. ...
|
| Miller furnace, drips at nozzle | 10/28/2009 |
Q: I installed a new miller cmf 80 with a Beckett AF15 gun into my mobile home 3 days ago. I followed ...
A: Jeffrey, Kerosene may be causing the problem. I have only used kerosene for temporary testing. ...
|
| Buzzing noise | 10/27/2009 |
Q: I have notice that my outside unit makes a really weird buzzing noise even when it is not running? ...
A: Sam, a noise when the unit is off is unusual. When the unit is off there is no power applied and ...
|
| heating and air conditioning | 10/26/2009 |
Q: I have lived in my current townhouse for 2 years now and compared to previous houses where I have ...
A: Carl, electronic air cleaner is the top of the line filtration, using a media filter would be a step ...
|
| hvac | 10/25/2009 |
Q: How do you identify or check what type of refrigerant is in an A/C system?
A: Tony, this information is on the name tag. You will look for a tag or plate that has the model and ...
|
| Carrier 15 year old HVAC-Gas Furnace | 10/24/2009 |
Q: Mike, First off appreciate your willingness to assist people that may be getting ripped off. My 15 ...
A: Nick, sounds like the limit was doing the job but 2 techs. fixed the symptom and not the problem. ...
|
| Cold air return | 10/23/2009 |
Q: We have a dual system in our two-story home. The air return for the upstairs air handler is in the ...
A: Craig, you idea is defiantly an option. Getting a return in the master would probably help this ...
|
| Split system blower (natural gas heating) | 10/23/2009 |
Q: Purchased home 2 yrs ago..compressor for A/C needs replacing.Before we have this done, need to clean ...
A: Paulie, the model and serial number will be on a tag close to where the electric lines enter the a/c ...
|
| terminal blow out | 10/22/2009 |
Q: hi mike corrie from south africa wonder if you can help two compressors one scroll and one rotary ...
A: Corrie, You may never really know why the terminal blew. If there was a loose wire on the terminal ...
|
| AC window unit | 10/22/2009 |
Q: Can you tell me if running the fan on an AC window unit will be more expensive than just running a ...
A: Jamie, the newer window units are more efficient compared to the old ones. Between a ceiling fan and ...
|
| txv | 10/22/2009 |
Q: Cool side of heat pump works fine, but heat side head pressure shoots right up at start-up and locks ...
A: James, the most common heat pump failure I run on new units is overcharged, especially with the new ...
|
| Split system blower (natural gas heating) | 10/22/2009 |
Q: Purchased home 2 yrs ago..compressor for A/C needs replacing.Before we have this done, need to clean ...
A: Paulie, blower wheels that dirty are caused from not using a filter or not changing them enough, ...
|
| Furnace selection for attic installation | 10/22/2009 |
Q: I need to replace my furnace located in the attic which heats the 2nd floor of my house. I want to ...
A: Tom, an insulated room would be the best application. Here in central Ohio we have a lot of 90% ...
|
| txv | 10/21/2009 |
Q: Cool side of heat pump works fine, but heat side head pressure shoots right up at start-up and locks ...
A: James, the unit could be overcharged with refrigerant or the outdoor txv has failed I would recover ...
|
| Furnace flame sensor | 10/21/2009 |
Q: I have a Trane XB80 furnace/AC unit. It is only about 5 years old. Recently the furnace has been ...
A: Tim, the problem could be in the board. The timing doesn't really indicate one way or the other. If ...
|
| Air Handler blower delay relay | 10/21/2009 |
Q: I had just gotten back into the HVAC field after a ten year absence. I was a senior HVAC technician ...
A: Bobby, I thought of a couple of issues that can cause the sequencers to blow. First loose ...
|
| inverter | 10/20/2009 |
Q: I have a small print shop of 12,00m2; there is no heating in it. I bought an inverter air condition ...
A: Mufid, I have never had to set those units on medium speed and run the temp. up that high. I am not ...
|
| Siegler Oil Heater | 10/19/2009 |
Q: i just got a Siegler oil heater Model #4247UBN, Serial #47666 and am trying to find out about it..it ...
A: Randy, the flue pipe should slope up into the chimney. The heat exchanger is the main shell that ...
|
| Teledyne mini therm and thermostat | 10/19/2009 |
Q: by boiler is teledyne mini therm II. A 2 zone system. If I had to guess maybe 30 yrs old? In 07 I ...
A: dawn, Check for batteries on the thermostats, this will cause the screens to go blank. Lockout relay ...
|
| Think my pilot is out but don't have instructions to re-light | 10/19/2009 |
Q: My 2nd floor Tappan furnace is blowing out cold air when we have the heat button switched on. I ...
A: Tim, if this is a newer furnace, less than around 15 years then there is no standing pilot that ...
|
| HVAC Outside unit Wiring | 10/19/2009 |
Q: New outside unit this summer, Trane Heat Pump 2TWB3018A1000A the cooling Ok~. Heat ?able, Bell ...
A: Scott, wire colors are usually universal but sometimes people will use whatever they want. What ...
|
| short cycling | 10/18/2009 |
Q: I have a Slant Fin oil burner hot water base board system. Maybe once a day I will hear a short ...
A: Bob, the aquastat is just like a thermostat and can get out of calibration. without looking at the ...
|
| oil furnace | 10/18/2009 |
Q: I have been having problems with my furnace it is a BUDERUS Logano G-215 Oil fired Boiler it was ...
A: Larry, There is a cad cell that will detect the flame, sometimes these get dirty and will not sense ...
|
| insulation | 10/18/2009 |
Q: I had a new oil boiler installed in my home last month. It's a Weil McLain model #PWGO-3. My house ...
A: Lynda, I'm sorry I didn't explain that very well. Beckett is the manufacture for the oil burner not ...
|
| commercial rooftop unit | 10/18/2009 |
Q: This is a rooftop unit about 5 to 15 ton unit. the thermostat is blank and cant get it to work. ...
A: Jessi, if you have no line voltage at all to the transformers then the problem might be in the ...
|
| natural gas coming through registers | 10/18/2009 |
Q: i have a good man 75000 BTU up flow igniter type furnace and recently i noticed natural gas smell ...
A: Rick, soap bubble all the connections on the gas lines. How does the furnace ignite? is it rough and ...
|
| Coleman furnace | 10/17/2009 |
Q: I have a Coleman Echelon 9T series high efficiency furnace. Two days ago when I changed the filter ...
A: Amy, by removing the panel and disconnecting the power this reset the board of any codes and the ...
|
| pilot light | 10/17/2009 |
Q: I received an email saying return to sight for response to question asked of Mike Lehner. The last ...
A: Joyce, push in the red button and hold it down while you light the pilot. Continue holding the red ...
|
| american standard error code | 10/17/2009 |
Q: Just installed a freedom 90vs. when starting the unit i get a 3 flash code that according to the ...
A: Dale, inducer error could be that the rpm's are out of range or the motor is not operating at all. ...
|
| Replace heat pump? questions | 10/16/2009 |
Q: My 5yr old Bryant heat pump after several service visits is going to need approx $1100 to repair. 12 ...
A: Mike, Goodman had a bad reputation years ago. I think the newer line is decent and they really have ...
|
| Upgrade from 92-95% and adding variable valve/speed-Worth it? | 10/16/2009 |
Q: I currently have TWO 80% 20 year old Tempstar 150K BTU furnaces, one for each floor in my 4600 sq ft ...
A: Kris, one thing to keep in mind is that the efficiency numbers can vary after install. Those numbers ...
|
| Siegler Oil Heater | 10/16/2009 |
Q: i just got a Siegler oil heater Model #4247UBN, Serial #47666 and am trying to find out about it..it ...
A: Randy, my main concern on old furnaces is always safety. The heat exchanger needs checked, probably ...
|
| commercial rooftop unit | 10/15/2009 |
Q: This is a rooftop unit about 5 to 15 ton unit. the thermostat is blank and cant get it to work. ...
A: Jessi, there might be a low voltage short. There is probably some type of fuse on the transformer. ...
|
| short cycling | 10/15/2009 |
Q: I have a Slant Fin oil burner hot water base board system. Maybe once a day I will hear a short ...
A: Bob, the only thing i can think of that would cause a short cycle like that would be in the ...
|
| Oil furnace | 10/14/2009 |
Q: Pardon me: But. I did not receive your answer, there was a type-o in my email address: Could you ...
A: they help. Can you take a picture of the box where the emergency heat switch is at. Emergency heat ...
|
| heating | 10/14/2009 |
Q: OKAY I HAVE A 1993 RHEEM AC AND HEATING UNIT I REPLACED THE FAN LIMIT BUT THE UNIT TURNS ON AND ...
A: Juan, some of the old Rheem did not have a flame sensor, but look for a metal rod in front of one of ...
|
| Oil furnace | 10/13/2009 |
Q: Pardon me: But. I did not receive your answer, there was a type-o in my email address: Could you ...
A: Jack, I am not sure what happened I received a duplicate of your question. Sounds like you have dual ...
|
| package hvac | 10/13/2009 |
Q: i have a unit that calls for heat/inducer motor kicks on/then after a few secounds the sail switch ...
A: Anthony, are getting any flashing codes? sounds like a problem with the board or pressure switch. Do ...
|
| Lennox Heat Pump Noise | 10/12/2009 |
Q: I just had a New Lennox XP19-036 two speed heatpump installed with new Lennox oil furnace. Heat ...
A: Ed, it is hard to say without hearing the noise. The most common noise problems I run into on new ...
|
| furnace burner cycling on/off | 10/11/2009 |
Q: I finally got a code reading on furnace. It is in 'Soft lockout type 3, Pressure switch opened ...
A: Marty, the pressure switch monitors the vacuum in the exhaust pipe. If there is a blockage or slight ...
|
| Heat Pump | 10/10/2009 |
Q: I have an old GE Weathertron Heat Pump (ca. 1983) out back of my house. It had been running fine ...
A: Darin, 15.1 amps would be the run loaded amps, this is max amps the compressor should be running at ...
|
| am i being scammed | 10/10/2009 |
Q: being told by owner of company sole and installer being one in same that i need a new evaporator ...
A: Sharon, as the homeowner I would want a contractor to prove there is a leak. Electronic detectors ...
|
| Furnace stopped working after being off for the summer | 10/10/2009 |
Q: Good Evening, I'll try to condense this down. I turned down the thermostat for our furnace to it's ...
A: Jason, this could be several issues. When the pilot did light did you notice if the pilot was yellow ...
|
| A/C moved with mobile home..its messed up now | 10/9/2009 |
Q: I need to find out some information. We recently purchased a mobile home from an individual. We ...
A: Shannon, the a/c is destroyed. The worst enemy to an a/c unit is air and moisture. Even if it was ...
|
| Weil Mclaine Gas Water Boiler on Fritz. | 10/8/2009 |
Q: I have the above unit in our home providing radiant heat. Our house was built in 1972. Over the ...
A: Byron, you could replace module, it is not that bad. I have had problems with those Honeywell boards ...
|
| geothermal system oversized | 10/7/2009 |
Q: It appears that the geothermal system installed in my recently built Energy Star rated home may be ...
A: Sounds like load calc. was covered. The envision series needs to be set up correctly to operate ...
|
| Carrier compressor problems | 10/6/2009 |
Q: I have a Carrier outside compressor unit, model # 38ckc060300. Recently the breaker that controls ...
A: Marvin, some of those models had a start kit installed. Near the dual capacitor look for a large ...
|
| diagnostic indicator | 10/6/2009 |
Q: Do you have the flash codes for a 50e47-150 White Rodgers diagnostic indicator? Two yrs. ago i ...
A: Danny, I believe the one flash indicates ignition lockout. Do the burners light and then shut down ...
|
| furnance main tripping | 10/5/2009 |
Q: Our White Rogers propane furnace main is tripping. Model number 50A50 471. Turns on for 2 ...
A: Karen, could be a problem with the blower motor. Turn everything off at the thermostat and then turn ...
|
| A/C won't shut off | 10/5/2009 |
Q: My home A/C unit will turn on and begin to start and then cut off then will do the same thing ...
A: Gary, this could be a sign that the a/c has lost refrigerant. Some units have a switch that will cut ...
|
| Central Air Unit Comparison | 10/4/2009 |
Q: We have an 11yr old 2-story house with 1/2 finished basement. We have 2 gas furnaces and A/C units, ...
A: Mark, you are on the right track with getting a new unit, major repairs on an old unit is not wise. ...
|
| furnace burner cycling on/off | 10/4/2009 |
Q: Furnace would run and then shut off before reaching desired temperature. I bypassed thermostat to ...
A: Marty, from what you are saying it sounds like the main limit might be tripping. This can be caused ...
|
| check valve v. expansion valve | 10/4/2009 |
Q: Is there a difference between an expansion valve and a check valve in the air handler part of a ...
A: Lisa, did they write down any of these numbers like the superheat on the invoice? the bulb is what ...
|
| Ice Buildup on the Liquid Line | 10/3/2009 |
Q: I have had a technician out to my house several times because my AC unit stopped blowing cold air. ...
A: There are a couple of brands that make sealant, most mix with the oil and did not seal very well. ...
|
| Compressor Technology | 10/3/2009 |
Q: I am in the process of replacing my HVAC system and am being offered a dual compressor system among ...
A: Charles, in the back of my head I thought Trane was still doing this. I do not run into a lot of ...
|
| furnace starts but won't continue | 10/3/2009 |
Q: our rheem furnace will start but won't send the signal to the piazo or however you spell it? to ...
A: Do not clean the ignitor, it will break. If the furnace does not fire off then it must be a safety ...
|
| check valve v. expansion valve | 10/2/2009 |
Q: Is there a difference between an expansion valve and a check valve in the air handler part of a ...
A: Lisa, from what you are saying the then probably the expansion valve is ok. These valves fail closed ...
|
| Forced Hot Air Registers | 10/2/2009 |
Q: Turned the heat on in our new home for the first time last night. It seems that some of the ...
A: Jules, you probably need a air balance. Check with the company that installed the equipment to see ...
|
| HVAC problem | 10/2/2009 |
Q: The crawlspace where my one year old gas furnace is located flooded with three feet of water and now ...
A: Harold, I would have to agree with tech. I would have no doubt that the circuit board and probably ...
|
| Furnace filter for Rheem Criterion II | 10/2/2009 |
Q: How do you change the filter, get it out, etc.?
A: Sandra, some units have an external filter that would be on either side of the furnace. If there are ...
|
| Compressor Technology | 10/1/2009 |
Q: I am in the process of replacing my HVAC system and am being offered a dual compressor system among ...
A: Charles, I don't know of any manufactures still making dual compressors where there are actually two ...
|
| QUESTION: model: 5BLA075-12 Carrier | 10/1/2009 |
Q: had to start new question Mike. having a guy come out tomorrow. anyway, i have to think the gaps ...
A: Scott, is it soot buildup that is keeping them from wanting to work on this furnace? Sounds like you ...
|
| Ice Buildup on the Liquid Line | 10/1/2009 |
Q: I have had a technician out to my house several times because my AC unit stopped blowing cold air. ...
A: Scott, how did the company come to the conclusion that the line set needs replaced? Recharged 3 ...
|
| RHEEM 80 Imperial | 10/1/2009 |
Q: I have just purchased a house and the HVAC unit is a RHEEM 80 Imperial. It has worked well all ...
A: George, this sounds like the furnace needs cleaned. There is a flame sensor the detects when the ...
|
| Oil Heat Power Vent | 9/30/2009 |
Q: I live in MA and have a power vent on my Oil Heating system. I get a lot of smell coming in my ...
A: Trevor, the clearance is usually 4 ft. from the side or bottom of a window or door. If the window is ...
|
| check valve v. expansion valve | 9/30/2009 |
Q: Is there a difference between an expansion valve and a check valve in the air handler part of a ...
A: Lisa, there is a difference but most modern units within 10 to 15 years have the check valve built ...
|
| musty smell from heat ducts | 9/29/2009 |
Q: I built my house in 2005, and have never had a wet basement. Although a musty smell in the ...
A: Brian, this problem might not be caused from the furnace. If there is a musty odor in the basement ...
|
| 2003 Goodman Furnace Problems | 9/29/2009 |
Q: I bought this house in May. It's 55 years old and supposed to be completely professionally ...
A: If the exhaust pipe is not sloped correctly to the furnace then you can get a dip in the pipe that ...
|
| a/c | 9/29/2009 |
Q: I have a question on split system a/c. The condensing unit is getting 220, but only when the ...
A: Anthony, On the front of the compressor there is a cap with 3 wires. Remove the cap and mark where ...
|
| oil furnace trouble | 9/28/2009 |
Q: just changed 2nd nozzle, filter, bled the air. furnace tries to run every 5 min., and i'm not ...
A: I don't blame you for wanting natural gas. Unfortunately if you can't find someone to work on it you ...
|
| 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: Tim, the new a/c should be just as cold as the other one. The compressor should not have ...
|
| a/c | 9/28/2009 |
Q: I have a question on split system a/c. The condensing unit is getting 220, but only when the ...
A: Anthony, capacitor can cause a short to trip the breaker but doubtful. Could be the compressor. Make ...
|
| heat pump humidity | 9/28/2009 |
Q: Our ac, trane heat pump, was working great until a company came over to do a yearly maintenance. ...
A: Lisa, sounds like the unit was not charged with refrigerant correctly. If they undercharged it just ...
|
| American Standard furnace troubleshoot | 9/27/2009 |
Q: I bough a home last April that had a newly installed American Standard Freedom 80 (model ...
A: Jonathan, the way to reset the furnace is to turn the breaker on and off. The 2 flash code probably ...
|
| 2003 Goodman Furnace Problems | 9/26/2009 |
Q: I bought this house in May. It's 55 years old and supposed to be completely professionally ...
A: Robert, the condensation produced from the furnace is acidic. You should not have any water leaks ...
|
| oil furnace trouble | 9/25/2009 |
Q: just changed 2nd nozzle, filter, bled the air. furnace tries to run every 5 min., and i'm not ...
A: Scott, Having fuel come through by blowing on the nozzle may not really indicate if it is clear. ...
|
| 2003 Goodman Furnace Problems | 9/25/2009 |
Q: I bought this house in May. It's 55 years old and supposed to be completely professionally ...
A: Robert, 30' run of pvc should be ok but needs to be verified by the furnace install manual, not the ...
|
| oil furnace trouble | 9/25/2009 |
Q: just changed 2nd nozzle, filter, bled the air. furnace tries to run every 5 min., and i'm not ...
A: Scott, are you sure the electrodes are adjusted correctly? Just after the transformer is buzzing you ...
|
| Vents Popping When Heat Turned On | 9/24/2009 |
Q: My family and I live in a 3 year old home. When the gas forced heat is turned on the air ducts ...
A: Chad, if the pop is just when blower first starts up or on shut down then the ducts are expanding. ...
|
| Fridge | 9/23/2009 |
Q: For the past 6 months or so, our fridge has been leaking water. It seems to be running down the ...
A: Holly, the first thing to check for is if the drain line is plugged. At the bottom of the ...
|
| thermostat honeywell TH8110U1003 | 9/23/2009 |
Q: I have a Miller Propane Heater %26 Coleman air conditioner. I have just installed a Pellet Stove in ...
A: Randy, that thermostat can not be programmed to run the fan on time like 5 min. every 15. The ...
|
| SEERS | 9/23/2009 |
Q: I live in south Florida. My home was built in early 2006 I have a split unit with two 3 ton Carrier ...
A: Peter, I really have not had any problem with installing a 13 seer unit on an older air handler. As ...
|
| Keeprite furnace not producing heat | 9/22/2009 |
Q: I have a 1996 Keeprite DX90 natural gas furnace that will not fire up. The pilot light and the ...
A: Ron, if there are only 2 wires then the fan is not wired in the thermostat. You don't have to have 3 ...
|
| 2003 Goodman Furnace Problems | 9/22/2009 |
Q: I bought this house in May. It's 55 years old and supposed to be completely professionally ...
A: Robert, the circuit boards are solid state and without the engineering diagrams to the board there ...
|
| 3 amp fuse keeps blowing | 9/22/2009 |
Q: I have a downflow furnace Model EB series that keeps blowing it's 3 amp fuse between the ...
A: Robert this helps narrow the problem down, there is probably a low voltage wire shorted out ...
|
| Connecting a duct fan to the furnace | 9/21/2009 |
Q: I have a Kenmore power miser 80 model number NUGE105KGO2 ser.867 768031. I installed a duct fan and ...
A: Mike, you can wire it in hot to run all time or install two relays which is how I would do it. You ...
|
| Replacement of 1983 2.5 t heatpump | 9/20/2009 |
Q: Sir, I am ready to replace my heatpump and considered going closed loop geo-thermal. I have to ...
A: Beau, it is difficult to give you an exact answer. I can give the yearly operating cost with a ...
|
| Furnace replacement venting | 9/20/2009 |
Q: We are going to be replacing a natural gas furnace that is nearly 30 yrs old and have been getting ...
A: Blair, the flue size is based on the btu's of all the units and there is a manufacture chart that ...
|
| Condenser unit | 9/19/2009 |
Q: We just had our compressor replaced last weekend. When we got home today the breaker was blown in ...
A: Linda, possibly the run capacitor is bad. This should have been replaced with the new compressor, if ...
|
| Connecting a duct fan to the furnace | 9/18/2009 |
Q: I have a Kenmore power miser 80 model number NUGE105KGO2 ser.867 768031. I installed a duct fan and ...
A: Mike, ok I'm following you, no board. How many wires are on the duct fan?, I need to know if there ...
|
| Keeprite furnace not producing heat | 9/18/2009 |
Q: I have a 1996 Keeprite DX90 natural gas furnace that will not fire up. The pilot light and the ...
A: Ron, I noticed you soldered some connections on the gas valve board. The gas valve board is a common ...
|
| New AC Unit | 9/18/2009 |
Q: I live in the Houston, TX area and am having to replace my entire ac unit. I plan on staying in the ...
A: Mark, 21 seer is very expensive and may not pay you back very quickly. I would recommend a 16 seer ...
|
| Evap cooler not blowing after power outage | 9/17/2009 |
Q: I just boutght a 13-yr old home 2 weeks ago. I have a FrigiKing evap cooler which was on and working ...
A: Heath, a buzzing noise could mean the motor itself is locked up or the run capacitor is blown. With ...
|
| air conditioning systems | 9/17/2009 |
Q: Can you tell me what the difference is between HVAC air conditioning systems and central air ...
A: As long as your apartment had its own furnace then central air can go in. Radiators can be removed ...
|
| Furnace #EB17B & Delux Blend Cir II - ? | 9/16/2009 |
Q: Alarm and lite sounds on furnace indicating problem with attic fan. I have reset breakers a number ...
A: Bill, the deluxe blend system has two circuit boards an upper one and lower one. If the attic fan is ...
|
| Booster Fan | 9/15/2009 |
Q: Mike, First thanks for answering my original question about booster fan control. Your suggestion ...
A: Hey Jim some furnace can not handle too much of a load on the transformer. Now the thermostat could ...
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| air conditioning systems | 9/15/2009 |
Q: Can you tell me what the difference is between HVAC air conditioning systems and central air ...
A: Danielle, I understand now. Most furnaces can have central air installed. There will probably need ...
|
| Compressor disposal | 9/15/2009 |
Q: we needed to replace the compressor in our AC. The company wants to charge us $160 just for disposal ...
A: Irina, this is something I never heard of??. In 15 years I have never charged a disposal fee. As ...
|
| Booster fan control | 9/14/2009 |
Q: I installed a booster fan in my duct and would like it to turn on when the A/C turns on. My first ...
A: Jim, sounds like there is 24 volt connection on this booster fan. I would use a current sensing ...
|
| air conditioning coils freezing | 9/14/2009 |
Q: Good morning We survived the hot weekend. Good thing it was not hot as it has been in past weeks. ...
A: Eryk, if you have a history of adding freon and this freon leak was never fixed then it is probably ...
|
| Airconditioner | 9/13/2009 |
Q: when the Air conditioner is on it blows hot air. We have had freon put in it, and it works great for ...
A: Carolyn, sounds like you have a serious freon leak. If it only works for one day then hot air, the ...
|
| Kold-Draft Fault Codes | 9/13/2009 |
Q: I'm on a ship with a Kold-Draft mod. GB451AK Ice Machine that was installed in January 2002. Cubes ...
A: John, I am not sure what the codes are. From the description of the ice, this helps narrow the ...
|
| Coleman mobile home Furnace Model # 7700-B-856 | 9/12/2009 |
Q: I have had a problem with the furnace coming on. The heater comes on, and the blower comes on and at ...
A: Looks like you don't have a circuit board. The picture here shows a small clear relay, do any of ...
|
| A/C Condenser | 9/12/2009 |
Q: Mike I need help please, my motor on my condenser is going out on my house, when I take the top off ...
A: Cody Unless you call out a contractor to get this motor your only option may a universal motor. When ...
|
| surge from lightening | 9/12/2009 |
Q: can a surge from a lightening strike cause bearing failure in a air conditioner fan motor. ANSWER: ...
A: I agree that is a lot of units failing after a strike. The problem would almost have to be ...
|
| surge from lightening | 9/11/2009 |
Q: can a surge from a lightening strike cause bearing failure in a air conditioner fan motor.
A: Betty, I don't think lightening could take out the bearings. Bearing failure is caused from age or ...
|
| Life Expectancy of Lennox Circuit Board | 9/11/2009 |
Q: A Lennox heat pump and air conditioner, purchased in 2000, failed to cool recently, immediately ...
A: CM, I have found that the electric company will never admit to a power surge and there really is no ...
|
| Air to Air Heat Pump | 9/11/2009 |
Q: I want to relocate my Heat Pump (Tempstar - Smartcomfort 2000)about 10' from current location. ...
A: Craig, I know it doesn't seem like it but this is a big job and you might not have the equipment to ...
|
| dehumidification | 9/11/2009 |
Q: We will be replacing all of our HVAC equipment (2 zones, one gas furnace, one electric (!) furnace, ...
A: Sallie, a whole house dehumidifier is just a small a/c unit, we have to cool to dehumidify. During ...
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| coleman wall furnace | 9/11/2009 |
Q: my Sears Series 600 bit the dust.. My neighbor has a coleman model 2365 that he offered to me as ...
A: Tom the change over should be easy but my only concern is the gas pressure should be adjusted going ...
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| Liquid Line Drier | 9/10/2009 |
Q: My mother has been trying to get her ac fixed since Aug. 15...it's now Sept. 10. First, they said ...
A: Brooke, liquid line driers don't leak. The brazed connections on either end might leak, which could ...
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| replacement of a thermostat | 9/10/2009 |
Q: I was relocating the thermostat and when I was pulling the wires through the wall the cables make ...
A: Temo inside the furnace in the attic there might be a automotive type fuse that blew. If you are not ...
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| Coleman mobile home Furnace Model # 7700-B-856 | 9/10/2009 |
Q: I have had a problem with the furnace coming on. The heater comes on, and the blower comes on and at ...
A: The most common problem I found with the Coleman furnace is the circuit board. Most of the boards ...
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| replacement of a thermostat | 9/10/2009 |
Q: I was relocating the thermostat and when I was pulling the wires through the wall the cables make ...
A: Temo, sounds like you did not turn off the power. You are not the first that has done this. The ...
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| dehumidification | 9/9/2009 |
Q: We will be replacing all of our HVAC equipment (2 zones, one gas furnace, one electric (!) furnace, ...
A: first let me explain how the unit actually dehumidifies. The job of any air conditioner is to ...
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| york heat pump | 9/9/2009 |
Q: have a York heat pump that is functioning properly for about an hour (starts to cool down the ...
A: Andy the white control box called the Yorkguard a code 4 means the discharge line did not hit 90*, ...
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| Inside Air Handler and Condensing Unit | 9/8/2009 |
Q: I recently suffered damage to my house when a tree came through the roof. When the tree fell on the ...
A: Maile, looks like the insurance company is right. They are two separate power sources but do share ...
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| Wear and Tear | 9/8/2009 |
Q: What things are considered "wear and tear" when it comes to HVAC units? Also, what things do ...
A: Bri all the motors and possibly the compressor could fail due to wear and tear. Which are usually ...
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| Roper Fridge drain tube freezing | 9/7/2009 |
Q: We have a Roper fridge (I'll get the model number soon; don't have it with me currently) and the ...
A: Jeff, make sure the freezer section is not set too low and the refrigerator set high. The freezer ...
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| crawl space insulation | 9/7/2009 |
Q: I live in a split level home in NY and the living room/dining room/kitchen area is over the crawl ...
A: Greg tapping into a duct would be waste of energy. Insulated the correct way will make a tremendous ...
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| ac worked fine until tech went up on roof | 9/6/2009 |
Q: We had our ac fixed a month and a half ago by a certified tech. We live in an apt. The ...
A: Steph the new guy wanting to replace the thermostat seem to be on the wrong track. If the second guy ...
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| rattling sound | 9/6/2009 |
Q: I have a Goodman central air unit that's making kind of a squeaking, rattling sound (sort of like ...
A: Could be the motor itself or maybe just a loose panel. Try pushing or slightly moving the furnace ...
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| A/c fan inside will not come on | 9/5/2009 |
Q: I have an old whirlpool/Honeywell patched together HVAC unit in closet. bout 15-20 yrs. No computer ...
A: You could have a wrong relay. The relay getting hot is strange, do you hear the blower trying to ...
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| Aquarium chiller service | 9/5/2009 |
Q: I recently acquired an Aquanetics AFC-1 1/6th HP chiller built 07/92. The company is out of business ...
A: 1992 was the very beginning of r-134a, so your unit could be something else. Since the company is ...
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| Aquarium chiller service | 9/4/2009 |
Q: I recently acquired an Aquanetics AFC-1 1/6th HP chiller built 07/92. The company is out of business ...
A: Joe, sounds like the compressor not running at all if the water in is the same as out. Can you ...
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| A/c fan inside will not come on | 9/4/2009 |
Q: I have an old whirlpool/Honeywell patched together HVAC unit in closet. bout 15-20 yrs. No computer ...
A: Mike, this relay you just replaced, is it brown and plugs into the fan center where the transformer ...
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| ac problem | 9/4/2009 |
Q: AC stopped working today. The blower works but the compressor does not. When I turned on the ac at ...
A: Mark this does not sound good. Did the a/c breaker trip? Sound like a terminal burnt out of the ...
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| central air conditioning drain pipe broken | 9/4/2009 |
Q: My air conditioning unit is in the garage, the evaporator hose drains to a plug in the wall, and ...
A: Billy what I would do is install a condensate pump. When the reservoir fills up it will pump out the ...
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| GE side by side fridge problems | 9/3/2009 |
Q: I have a GE side by side fridge model #GSH25KGMD. The other morning I woke up and opened the freezer ...
A: Pat sounds like the defrost timer may be intermittently sticking. The coil will freeze but the ...
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| condensing oil furnace | 9/3/2009 |
Q: Mike, I am looking to replace my warm air furnace with a condensing furnace .one Company claims ...
A: I have worked on a few. These high efficient oil furnaces require yearly maintenance, it has to be ...
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| Hydronic Air handler /tonage/cooling | 9/3/2009 |
Q: I have a 3 story home occupied by 3 people in Atlanta, GA. I want to use a hydronic air handler ...
A: If you go with the Polaris they offer an air handler that is matched. Rinnai makes a nice system. ...
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| Fan runs all the time | 9/3/2009 |
Q: I have a 3 year old split Payne system. The fan runs all the time (even with all thermostat wires ...
A: Sorry I must have missed that the motor runs with stat wires disconnected. With all the stat wires ...
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| Hydronic Air handler /tonage/cooling | 9/2/2009 |
Q: I have a 3 story home occupied by 3 people in Atlanta, GA. I want to use a hydronic air handler ...
A: The Polaris setup with air handler can take an a/c, you will have to add a condensing unit and ...
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| leaking freon in two year old home with central A/C | 9/2/2009 |
Q: I have a two story two year old house that did not seem to adequately cool the upstairs master ...
A: David it sounds like you had two problems here. First, if just the master bedroom was hot and the ...
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| HVAC | 9/2/2009 |
Q: I need to replace a 15 yr old system that is on its last legs. We live in Little Rock, AR where ...
A: Bob, I love the new technology in residential heating and cooling, we have so many options now then ...
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| Split Coil | 9/2/2009 |
Q: what is a split coil on an airconditioning unit, what is it's purpose?
A: Split system has an outdoor unit that houses the condenser coil, compressor and fan motor. There are ...
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| air exchanger | 8/31/2009 |
Q: I am interested in having an air exchanger installed. My house is almost 10 yrs old. I get a lot ...
A: If you have a whole house humidifier it might be turned up to high. I would try a 6" insulated fresh ...
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| Smaller inside/larger outside | 8/31/2009 |
Q: I have a hair salon in Beaumont, Texas and my air conditioner is not keeping up. I have a 1 1/2 ton ...
A: Mixed match coils and a/c units can cause low pressures. The freezing could be caused from ...
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| Lennox C23-51/65FC-1 | 8/30/2009 |
Q: Our system is approx 7 years old. The local Lennox dealer Phoenix H/C was out to service it a few ...
A: In Phoenix you probably are not running the furnace this time of year. I would have it looked at ...
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| Dehumidifier | 8/30/2009 |
Q: I have 2 dehumidifiers.Both lasted about 14 months. Inside I found LG compressors.They start but the ...
A: Usually compressors get hot when they lose charge because the refrigerant cools the compressor. You ...
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| What brand air conditioner | 8/30/2009 |
Q: We bought an older house that does not have air conditioning. One contractor is saying Bryant is ...
A: Everybody will have a different opinion on brands. Looks like you have two quotes. look into what ...
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| Heating pipes in attic | 8/28/2009 |
Q: My house was built in the 1940s when energy efficiency was of no concern. As a result, the heating ...
A: Win, ceiling vents are not really a problem but insulation may be. If the ducts are not already ...
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| 30 yr+ Air conditioner blows breaker | 8/25/2009 |
Q: Howdy! Thanks for the help! Live in central Nebraska. Bought big old house on corner 100 yrs old. Am ...
A: Breaker tripping could be loose wires at compressor or disconnect box. Compressor could be starting ...
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| Trane Weathertron XE800 Heat Pump | 8/25/2009 |
Q: My Trane XE 800, Model# TWJ724A100A0/Serial#D1221018 outside unit was recently diagnosed with having ...
A: DeVon, I think it would be hard to bury an XE800 , this is a tall unit. From what you are saying, I ...
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| AIR CONDITIONING WINDOW UNIT | 8/24/2009 |
Q: WHEN RUNNING IT SOUNDS LIKE A CONSTANT FOUNTAIN RUNNING.
A: Look directly in the back of the unit, there is a drain tube or hole for water. Some are under the ...
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| a/c repair | 8/23/2009 |
Q: In a 40 yr old Payne cent heat/ac unit (reverse flow) can the cooling coil br repaired/replaced if ...
A: The coil can not be repaired. can be replaced but will probably need duct modified. The older coils ...
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| replacement HVAC system | 8/22/2009 |
Q: We are replacing our 15 year old split A/C and gas furnace as the E coil is leaking Freon and cannot ...
A: Bob, high seer a/c units and high end furnaces are not cheap, add in the extra duct work and your ...
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| Central Air Unit - Leak | 8/22/2009 |
Q: Make:Lennox, Model:10ACis36-12 (10 seer, 3tons), Serial 5800K06129, 3100 sq ft home, 2 commpressor ...
A: Hard to say what exactly the first tech. did to cause all the water, maybe pushed the unit away from ...
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| A/C | 8/18/2009 |
Q: can you pls help me, I'm desperate with a 2 yr old in this hot summer. My thermostat does show "cool ...
A: Tony, I am not John but could try and help. from what you are saying it sounds like a loose low ...
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| loud "clunking" noise | 8/11/2009 |
Q: I have a Trane XL 1200 heat pump. Once in a while when the AC turns on it makes a loud 'clunking' ...
A: Frank is this sound only on startup or does it also happen while it is running. On start up it might ...
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| Air conditinor unit struck by lightning | 8/2/2009 |
Q: My outside unit is a 2000. Recently I had refrigerant put in and maintenance done. Everthing was ...
A: If the compressor is mechanically locked up then I doubt lighting was the cause. The contactor can ...
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