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| Subject | Date Asked |
| A/C HEAT PUMP CONTACTOR INSTALL | 1/31/2012 |
| Q: .we want to change the CONTACTOR. Its a single pole, 24 volt. Do we have to shut off BOTH inside ... A: If you have to ask these sorts of questions, you probably should not be doing this type of work. ... | |
| flame sensor | 1/28/2012 |
| Q: How do I find the flame sensor? I want to clean it with steel wool, not sure which piece it is? ... A: I'm sorry, but the model number you gave me is not valid. A Bryant number starts with 3 numbers and ... | |
| flame sensor | 1/25/2012 |
| Q: How do I find the flame sensor? I want to clean it with steel wool, not sure which piece it is? ... A: I was unable to figure out what brand of furnace you have... I have never heard of "Brand" as a ... | |
| eletric furnace | 1/19/2012 |
| Q: my problem is that my heater works find it heat my house and the blower sound good,but when i switch ... A: I can not say without checking out the unit if the breaker or fan motor needs replaced, but the fact ... | |
| Emergency Heat switch | 1/16/2012 |
| Q: Good Morning Craig, I live in NJ and today Jan. 15 it is 17 egress. I just moved into this condo ... A: Heatpumps are used all over the world, including Canada. I am not sure who "she" is, but there is ... | |
| charging a refidgerator | 1/16/2012 |
| Q: my question is; I usually charge the ac in a fridgerator with the ac tank in upright position, for a ... A: Some refrigerants require they be charged as a liquid and the can it is in will give the proper ... | |
| Electric Furnace with Existing Central Air | 1/12/2012 |
| Q: I am wanting to change my existing gas furnace over to an electric furnace. I cannot afford to ... A: You should be able to use the existing condensing unit. Assuming the old unit is R-22, the new air ... | |
| Lennox furnace issue | 1/11/2012 |
| Q: lennox furnace model G26Q3/4-100-2 Intermittant igniter clicks and I can see the blue spark for an ... A: The nesting material can get picked up by the inducer fan. The material can then get blown into the ... | |
| Lennox furnace issue | 1/10/2012 |
| Q: lennox furnace model G26Q3/4-100-2 Intermittant igniter clicks and I can see the blue spark for an ... A: Based on what you have told me, the problem is with the gas supply. There are several things here ... | |
| Heil Heatpump Troubleshooting | 1/8/2012 |
| Q: Heil Heatpump Model No. CH3042VKB2 867.801051 A few days ago I noticed the outside unit had frozen. ... A: In heat or cool mode, the compressor is going to get hot! In cool mode as the outdoor coil starts ... | |
| condo a/c , mold problem | 12/17/2011 |
| Q: I am in the process of hiring a contractor to replace an air-conditioning unit in my condo (florida, ... A: You have a package unit, as they are referred. Since you live in a condo, it is possible the unit ... | |
| Carrier Air Handlers | 12/15/2011 |
| Q: I am trying to evaluate the fairness of a price change in a quote when going from: Carrier ... A: I do not have access to Carrier pricing. However I found a site that sells Bryant. Bryant is in ... | |
| Lennox GHR26 Series Furnace Malfunction | 12/14/2011 |
| Q: I own in a condo with central heating in the building. Each batroom has a Lennox GHR26 furnace pump ... A: The LED flashing code is pressure switch. I am not sure what motor is getting hot, but since the ... | |
| Carrier Air Handlers | 12/14/2011 |
| Q: I am trying to evaluate the fairness of a price change in a quote when going from: Carrier ... A: There is no way for me or anything to be able to give pricing to change out this unit sight unseen. ... | |
| my blower won't come on | 12/13/2011 |
| Q: i have bought 2 new fan switches and they won't turn my blower on but i can bypass the fan switch ... A: I needed to know what it was you were looking at so I can make my best guess. The "fan switch" as ... | |
| Dripping water | 12/12/2011 |
| Q: Water drips from defusher when the sun shines on the swamp cooler in the winter We have tried every ... A: If the unit is getting cold enough for water to freeze to it, then the sun melts it there is not ... | |
| Noisey heat pump | 12/9/2011 |
| Q: Goodman 14 seer 2 ton heat pump model ssz140241 serial 0904050403 unit was installed 10/22/09 ... A: Sorry for the delay, somehow I did not see I had a question in my mail box... I am not sure what ... | |
| liebert condensing unit | 12/6/2011 |
| Q: Liebert kept blowing fuses and unit would not start. WE replaced and removed vfd from circuit. Then ... A: Remote Liebert condensing units have pressure controls to maintain proper head pressure, the reason ... | |
| Correct Issues | 12/4/2011 |
| Q: Most everything, HVAC wise, in my home is working fine. But, I would like to correct some things ... A: The rooms have to have a way for the air to return or there would be no air flow. The space under ... | |
| Lennox HPX 14 | 11/20/2011 |
| Q: i have a Lennox 14HPX that keeps shutting down on me. I was told it is the pressure switch. What ... A: It can me many different things and is also depends on which pressure switch. Without a manifold ... | |
| Question from the TV show CSI | 11/17/2011 |
| Q: Craig. My name is Jon and I'm a researcher for the CBS television show CSI: Crime Scene ... A: In a commercial building air from the HVAC building is cooled or heated then supplied to a space ... | |
| HVAC Motherboard | 11/15/2011 |
| Q: I had a new system put in (name unknown) had the freon placed in and the system worked for a couple ... A: A bad board is no reason to change out an entire system that is new. If the system is just weeks ... | |
| Hear/air vent direction | 11/13/2011 |
| Q: I have a question similar to what was posted here: ... A: Since most of the heating/cooling load comes from the great outdoors, the vents blowing towards the ... | |
| Heat loss thru return air | 11/9/2011 |
| Q: I have a Trane XL1400 Gas Pack, 2-story house, unit is roof mounted, 1st floor and 2nd floor returns ... A: Barometric are used in flue pipes to regulate flow of the hot exhaust gas. There are dampers that ... | |
| Electric Furnace not blowing heat... | 11/7/2011 |
| Q: I have a Nortron 18-20 kw 240v-single phase electric furnace. Last year I changed old Honeywell ... A: Coils that look ok may not be. A meter is the only way to determine if the coils are ok. The ... | |
| Ge blower motor with circuit board end cap | 11/6/2011 |
| Q: I have a Trane hvac system about 16 years old. The blower motor wont run, compressor runs fine. I ... A: All of the parts can be purchased. I am not sure where you will get the best deal, as you will have ... | |
| Electric Furnace not blowing heat... | 11/5/2011 |
| Q: I have a Nortron 18-20 kw 240v-single phase electric furnace. Last year I changed old Honeywell ... A: Setting the fan to on will not make heat. That just keeps the fan running. If the contactor has ... | |
| Vent damper wont open | 11/1/2011 |
| Q: I have a Valliant water boiler home furnace. My aquastat stopped switching on the circulator pump. ... A: I am not familiar with this unit, but a boiler is a boiler. Since your unit released water from the ... | |
| Gas smell | 10/31/2011 |
| Q: hope you can help. I have a gas unit for my home. Whenever the outside temp drops to about 50 ... A: If you think the smell could be raw nat gas or propane, then turn off the gas to the unit or the ... | |
| buzzing sound when heat is turned up. | 10/31/2011 |
| Q: I have a heatpump. Have changed out the blower in the last 12 months and had a new control board ... A: The buzzing could be coming from the heat strips or the contactor for the heat strips. There could ... | |
| Carrier 58PAV070 continous blinking red light | 10/30/2011 |
| Q: SO I have been trying to troubleshoot this issue, the unit will not come on for heat, the AC has ... A: There is suppose to be a continous blinking light. The rate at which it is blinking is water ... | |
| Weather King Gas Furnance | 10/29/2011 |
| Q: My unit will not stay on longer than a minute. I have changed the filter, reset the thermostat, and ... A: Most furnaces have a control board with a fault light. Check the flashing light and compare to the ... | |
| heat pump lines | 10/28/2011 |
| Q: on my 2 ton heat pump on condenser the low pressure line is 7/8 and on inside coil it's 3/4 should ... A: There are some charts out there that offer the basics. The unit should have a pipe size chart in ... | |
| gaps between doors | 10/27/2011 |
| Q: The other day I noticed there is a sizeable gap (between a quarter to a half inch) between the doors ... A: Commercial buildings have different requirement than homes. Most commercial units have fresh air ... | |
| arkla servel parts | 10/26/2011 |
| Q: I was wondering if you know where to get parts for an Arkla Servel or Arkla Air model #428U its a ... A: I have heard of such systems, but I have never worked on one. It does seem to appear to be a very ... | |
| Hvac replacement negotiation | 10/21/2011 |
| Q: I need my gas pack system replaced how do negotiate with the hvac company to get the best price ... A: The best thing to do is to get more then one quote. This is not like buying a car. Issues that ... | |
| replace compressor | 10/19/2011 |
| Q: if i culd get the right compressor to replace the origanal i would call a qualified mechanic to ... A: I would think you can find someone out there that will install the compressor. They are likely not ... | |
| replace compressor | 10/17/2011 |
| Q: i need to replace my comfortmaker outdoor unit #AJ030GA1 .at www.home-ac.com they have copeland ... A: I am not completely sure what you are trying to do here. People often refer to one thing and mean ... | |
| Gas furnace service | 10/14/2011 |
| Q: I converted from oil to gas heat 3 years ago and am very happy with my decision, both from an annual ... A: It really depends on who you talk to. Some people never have the unit serviced until it breaks, ... | |
| Trane Gas Pack | 10/13/2011 |
| Q: The nights are getting colder.All summer the A/C worked fine.One night last week,I turned the heat ... A: There is not much I can really help you with here. You can try to reset the unit by turning off the ... | |
| a/c use during rain | 10/12/2011 |
| Q: I know of course, than air conditioners and dehumidifiers condense water vapor out of the air. But ... A: The rain is not going to affect the way the unit works, it might actually improve its operation ... | |
| AC air flow and duck sweating | 10/12/2011 |
| Q: For the past 18 years my AC did great kept house cool etc. some 3 years ago the flow coming from ... A: You did not mention flex, and there are several different types out there. The sweating ducts are ... | |
| gas/flame does not stay lit | 10/7/2011 |
| Q: My father and I just installed a whole house humidifier. When we turned the furnace on to test the ... A: Two short blinks just means the unit is locked out and has to be reset. There are several things ... | |
| Split system heat pump condensing unit | 10/5/2011 |
| Q: Split system unit is set for "Cool mode" and Fan "ON". The Aux red light is "ON" on the thermostat. ... A: Not all units have safety switches and they are not really needed. They do in fact turn the unit ... | |
| Split system heat pump condensing unit | 10/3/2011 |
| Q: Split system unit is set for "Cool mode" and Fan "ON". The Aux red light is "ON" on the thermostat. ... A: The problem could be the defrost board and you unit has one. I can see it in the picture. ... | |
| A/C UNIT | 10/1/2011 |
| Q: I was having a problem with my a/c not blowing cold air(it was cool but not cold as usual) also when ... A: Something about this seem fishy, but since I was not there I can not say for sure. Finding a small ... | |
| Split system heat pump condensing unit | 9/28/2011 |
| Q: Split system unit is set for "Cool mode" and Fan "ON". The Aux red light is "ON" on the thermostat. ... A: The problem can be any number of things. Based on what you are telling me I would start with the ... | |
| Commercial Sizing help | 9/27/2011 |
| Q: I am working on a 50,000sqft open space for a children's gymnastics center. It is located in Phoenix ... A: I am not sure what the tonnage you will need sitting here with no plans and all the good stuff ... | |
| tax credit+problems with trane unit | 9/18/2011 |
| Q: I had a Trane unit put in last March 2010 #4YCC3060A1120AB-had called to get a certificate for a tax ... A: The 2H/2C refer to the amount of stages the t-stat is capable of doing, not necessary the ... | |
| Replaced multiple parts - still won't run on its own | 9/16/2011 |
| Q: I have a 3 1/2 ton Carrier unit (model #38YCC042360). Last year in May, I had to replace the ... A: The short answer is "YES". You have to have the unit checked by a pro. It is illegal for anyone ... | |
| Replaced multiple parts - still won't run on its own | 9/15/2011 |
| Q: I have a 3 1/2 ton Carrier unit (model #38YCC042360). Last year in May, I had to replace the ... A: 1) The contactor is not pulling in because one or more of the safeties in the unit is keeping it ... | |
| Carrier #58CMA -runs but no fan | 9/13/2011 |
| Q: My Carrier model#58CMA (oil furnace) starts and produces heat, but fan isn't working. My book says ... A: It could be the fan or could be the timer or even something else. They only way to find out is to ... | |
| AC cooling problem | 8/30/2011 |
| Q: I have central AC system 3 ton, about 5 years old (dont use it that much) 1- the gas in/out ... A: Sorry, I live in the USA and use Fahrenheit. Units are designed to run in the 15-20F difference. ... | |
| air conditioner air handler motor | 8/29/2011 |
| Q: 1) My air is not coming on= the air handler is making a gurgling sound- diagnosis "new engine ... A: I think I might know what the gurgling sound is and can be normal actually. The description of the ... | |
| advice | 8/28/2011 |
| Q: I would like to know which one is more energy efficient and feasible for an office with ... A: The SEER rating is what determines the efficiency of a unit. A package and a split can have the ... | |
| Master Bath and Bedroom hotter than rest of house | 8/23/2011 |
| Q: We recently purchased a home that is approx 3300 sq foot. We had the heating and cooling systems ... A: Something is not quite true about that... Unless the existing registers are running at max CFM, ... | |
| New Central HVAC from Sears (Kenmore) not cooling well | 8/20/2011 |
| Q: Equipment installed new: (Kenmore) Condenser HXA660GKA100 (5-Ton), Coil EHD4X60AA, Furnace ... A: Do not worry about the refrigerant. The system was designed to work with it. The fact you have a ... | |
| Trane Air Handler | 8/20/2011 |
| Q: There is a wet spot on the wall opposite the air handler (a Trane Model #twe024c140b0). At first I ... A: Looking at the front of air handler the drain pan is going to be under the coil. The drain line ... | |
| Capacitor for my compressor | 8/19/2011 |
| Q: I have Goodman central ac unit installed about 3 years ago.It is 2.5 ton unit GSC 13seer unit with ... A: Run cap size is important and using the wrong size is bad news. From wikipedia "Run capacitors ... | |
| Air Flow | 8/19/2011 |
| Q: We just moved into a rental home. Built in 2005, approximately 3000 square feet, open floor plan, 2 ... A: There are some things to consider and they can be checked out... Is the unit sized correctly for ... | |
| Trane Air Conditioner defect | 8/16/2011 |
| Q: Are there any know design defects in Trane Model 2TGB3F36A 1000AA air conditioning units. Mine ... A: No issues that I am aware of. Common issues that seem to arise seem to fall back to maintance, ... | |
| Trouble Cooling Below 80 Degrees | 8/15/2011 |
| Q: I had a new Bryant Air Conditioner (condensing unit and air handler) as well as had the duct work ... A: The unit is not a blast freezer. There is no such thing as instant cool. It is limited by the ... | |
| Full drip pan shut off power to unit/hallway; fixed electricity in rooms but now AC won't work | 8/14/2011 |
| Q: Late last night, power went off to our hallway and sons' room. Air also cut off. Didn't find out ... A: I find it odd that the power to the unit and your son's room would be on the same circuit. ... | |
| A coil | 8/11/2011 |
| Q: Somewhat confused as to the best route. I have a TEMPSTAR A coil that has a slow leak and have had ... A: Do not worry about the fact the units have different brand names. The system does not care. The ... | |
| Asbestos Air Return | 8/8/2011 |
| Q: Roughly one year ago, I purchased a 70 year-old home. About a month ago, I tore out the old drop ... A: I am by no means an asbestos expert. As with many, the policy where I work if it is suspected we do ... | |
| Geothermal too shallow | 8/3/2011 |
| Q: If a horizontal geothermal loop is buried too low, and has problems cooling when it is hot and dry, ... A: I really do not know. I have not worked with geothermal. From what I have heard/read, you need to ... | |
| Air handler blower fan clicking not spinning | 8/2/2011 |
| Q: I'm having this problem with the indoor fan, clicking but it's not gettin enough juice to spin. I ... A: There no such thing as not enough juice. It is either on or off. Since the run cap did not fix the ... | |
| nordyne/gibson GS3BA-048KA | 7/31/2011 |
| Q: I would like to find the manufactuer and part number for the capaciter,no problems yet, but would ... A: I do not see a point in keeping a spare run cap. They just do not fail that often, and when they do ... | |
| HVAC Inspection | 7/30/2011 |
| Q: I have a question, we are selling our home and was notified by the inspector doing the home ... A: Reattaching the duct is not a big deal, though access and how much damage that needs to be repaired ... | |
| Amana A/C - low V from running capacitor | 7/29/2011 |
| Q: I've had an issue with my Amana A/C unit (model VCC24C2B) that has stumped my HVAC service team. We ... A: There are many things that can cause a compressor to overheat. Blockages or restrictions in the ... | |
| start assist capacitor | 7/28/2011 |
| Q: i haxe a goodman ac unit outside my mobile home the little round black start assist capacitor blew ... A: Maybe... The starting cap is there to give the compressor a boost at start up. It might or might ... | |
| Erratic a/c temperatures | 7/27/2011 |
| Q: We have an 18 year old 4 ton Ruud central a/c unit. It was serviced about 2 months ago and the ... A: The outlet air temp for the handler needs to be taken at the air handler for an accurate ... | |
| Amana A/C - low V from running capacitor | 7/27/2011 |
| Q: I've had an issue with my Amana A/C unit (model VCC24C2B) that has stumped my HVAC service team. We ... A: I think you are barking up the wrong tree. It appears to me the compressor is overheating. All ... | |
| goodman furnace circuit board /// blower FAN WILL NOT TURN OFF | 7/26/2011 |
| Q: I really need your advice / guidance. The fan on my furnace comes on AUTOMATICALLY and will NOT ... A: Bad circuit boards are not rare. Although there might be problems that occur more often then bad ... | |
| Excessive condensation | 7/25/2011 |
| Q: We have a two story house with a full basement. Our furnace is a Carrier Heat Pump Unit. It's an ... A: Congrats and a well performing unit removing off the moisture like they are designed to to. It ... | |
| Amana A/C - low V from running capacitor | 7/25/2011 |
| Q: I've had an issue with my Amana A/C unit (model VCC24C2B) that has stumped my HVAC service team. We ... A: Testing the resistance of the cap does not mean a thing. You have to test the capacitance of the ... | |
| Low air flow | 7/23/2011 |
| Q: I just moved in with my grandmother and noticed that her front bedroom is very warm, throughout the ... A: There are no simple fixes here to be honest, and starting from the beginning is important. Is the ... | |
| AC condenser | 7/22/2011 |
| Q: Would it help any hosing my AC condenser down for a few minutes when its 96 degrees outside???? If I ... A: Rinsing off the coil to remove the dirt is a good thing. Since the unit does run when it is ... | |
| Lennox air conditioner | 7/21/2011 |
| Q: I have a 5 year old Lennox air conditioner model 13ACD-024-230-01. It does not cool. The indoor fan ... A: There could be many reasons, but first thing is to check to see if any of the breakers or fuses (in ... | |
| Geothermal vs traditional | 7/20/2011 |
| Q: If I have read between the lines correctly, the following is true of geothermal. Can you confirm? ... A: You are a bit off... The reason the unit uses less energy is because the performance does not ... | |
| Central AC | 7/19/2011 |
| Q: We're looking to purchase a new AC for our home and are unsure as to which AC is better/suitable. We ... A: I am not a Goodman fan. Although many stand behind the brand and like it, I think there are better ... | |
| Train XR12 Air Handler & Condensing Unit | 7/19/2011 |
| Q: Good Morning! I am writing in the hopes that you can give me a little insight so I can aid my 80 ... A: I would not consider the repairs you listed at major. Some of the problems could have been caused ... | |
| tripping breakers in a 60-70 ton chiller unit | 7/18/2011 |
| Q: I have a 60-70 ton 3 yr old refurbished chiller system serving 36 units in a small apartment ... A: You have to confirm that all of the electrical connections are good and working. This also includes ... | |
| Matching a-coil to furnace | 7/18/2011 |
| Q: We were told by a professional that our house needs a 3.5 ton a/c (we currently have a 2 ton), but ... A: Just as a too small of a unit is not good, so it too big of a unit. You ought to be able to use a 4 ... | |
| I am trying to decide on a heat pump | 7/16/2011 |
| Q: I live in a small 2 bedroom condo, approx 1100 sq ft. The problem is my air conditioner died and ... A: A heatpump is very much like a straight cool. It just has a couple of more parts and a thermostat ... | |
| Lennox A/c Start Capacitor Rating | 7/13/2011 |
| Q: I have a problem with my HVACR unit. It is a Lennox M/n 10ACC-024-230-01 unit. The unit would not ... A: I would remove all of the start components and just buy a new hard start kit and connect the wires ... | |
| central air just stopped working | 6/29/2011 |
| Q: what would make my central air just to stop workimg i have checked breakers and fuses changed the ... A: There are many things that can stop the unit in its tracks. Using a meter and checking for power at ... | |
| goodman circuit board B18099-13S | 6/28/2011 |
| Q: I need help with wiring in a new circuit board, have a 5 wire tstat harnes, and only 3 terminals on ... A: For heating and cooling it only takes 4 wires. From there wires are added if you have a heatpump, ... | |
| contactor failure | 6/27/2011 |
| Q: I have a 2 pole 230v 30amp contactor w/ 24 volt coil,I keep having burn outs,some times they 2 ... A: Something in the system is causing a voltage drop. Voltage drops can be hard to find. Check all of ... | |
| Crayon oder from HVAC | 6/26/2011 |
| Q: I have 3 Unico 2 year old HVAC systems w/ exterior Bryant AC units that use Puron 410A. I have a ... A: I am not aware of anything in the system that smells like crayons. I can not describe the smell of ... | |
| Problem with 1 year/old lennox ac unit | 6/25/2011 |
| Q: I had a brand new ac unit installed in my house june 2010.A lennoxXC14-036 3 ton. Coil is CR33-48 ... A: You wrote a nice long story and I only really needed two key points. Your system appears to be ... | |
| AC Unit outside | 6/24/2011 |
| Q: We had our entire outside ac unit replaced last year on May 8, 2010. Today it is blowing warm air ... A: Giving the fan a push to get it going tells me the run cap is bad. Sometimes just changing the run ... | |
| AC Unit outside | 6/24/2011 |
| Q: We had our entire outside ac unit replaced last year on May 8, 2010. Today it is blowing warm air ... A: The fact it was hot to the touch would lead me to think the unit was running. It is possible the ... | |
| ac not cold | 6/23/2011 |
| Q: My AC unit is running but the air is not very cold that comes out. It is a 2 ton Luxaire. It ran for ... A: The unit only dropping 1 degree does not always mean the unit is not working properly. There are ... | |
| Carrier Weathermaker 9200 thermostat LED screen is blank | 6/23/2011 |
| Q: The LED screen on the programmable thermostat is blank. Is there a reset button? Fuse on the circuit ... A: There probably is not a reset on the pump. If so wired, the pump has a switch to shut the unit down ... | |
| Heat Pump not cooling | 6/22/2011 |
| Q: The compressor and outdoor fan don't run along with the blower motor. I did jump the red and white ... A: It could be the stat. Keep in mind some stats have a delay time to protect the compressor. Reading ... | |
| ac trouble | 6/19/2011 |
| Q: My unit (2 years old) appears to be working fine, the outside unit kicks on when I turn on the ac, ... A: The motor is located in the middle of the blower wheel. Looks similar to a hamster wheel. The ... | |
| outside unit will not stop | 6/11/2011 |
| Q: the ac stops in the house when it reached the set temp but not outside unit. I need to manually turn ... A: The model number does not really help me. It is for the coil. The thermostat is a simple one. It ... | |
| Central Air Cond | 6/11/2011 |
| Q: My 30 year old Lennox central A/C had decided to quit on me and I have been "agonizing" over a ... A: There are many types out there...There are also a lot of different opinions about what is good or ... | |
| r410a refrigerant | 6/8/2011 |
| Q: .... I just added a 28.2oz can of r410a refrigerant to my AC..... I added the refrigerant in liquid ... A: You are NOT going to be able to remove all of the refrigerant from the can. Once the pressure in the ... | |
| Do I need a whole new AC sytem | 6/8/2011 |
| Q: I just bought a house that has a newer outdoor AC unit( 02/2006) and a really old indoor handler. ... A: The condensing unit is a 13 SEER unit. It came with a 5 year warranty. The unit is a 3.5 ton unit. ... | |
| air conditioner hissing | 6/5/2011 |
| Q: I have a amana GSX13 Distinctions Air Conditioner 13 seer less than a year old. It makes a hissing ... A: Keep in mind there is anyone to know for sure sight unseen, but I have a good guess. Compressors ... | |
| low buzzing sound from fan ? | 6/4/2011 |
| Q: I have a carrier/puron system. And since installed I can here a low buzzing sound from the ... A: I did not say it was normal. I am not completely sure how the motors are made. I also do no know ... | |
| low buzzing sound from fan ? | 6/4/2011 |
| Q: I have a carrier/puron system. And since installed I can here a low buzzing sound from the ... A: The fan speed is unimportant. You can not use the rate to which a fan spins to the amount if air it ... | |
| MHI (Mitsubishi) "Micro Computer Control/thermostat " | 6/3/2011 |
| Q: I have a MHI (Mitsubishi) "Micro Computer Control/thermostat " and I would like to install a new ... A: I am not familiar with the unit you mentioned. Some units use thermostats that do not turn the unit ... | |
| Thermostat replacement compatibility | 6/2/2011 |
| Q: "My elderly mother has an American Standard Freedom 80 furnace/AC, which she thinks sometimes goes ... A: I am sorry for the confusion. I must have misread or was sleeping when I responded. Please also ... | |
| my Ac unit and fan blower inside will not come on | 6/2/2011 |
| Q: I am an a fixed income and need HELP!!!!!!!!! Monday my ac system seemed to stop working and the ... A: The clue is the bad wire you found. The bad wire may have caused the control power to be lost. It ... | |
| air conditioner | 6/1/2011 |
| Q: my son turned on air conditioner and the cover was on the unit outside...it was left on for about 12 ... A: It can cause the unit to fail and not come back to life. At the minimum the compressor and outdoor ... | |
| Trane XR90 | 5/31/2011 |
| Q: I have a Trane XR90 that the heat is cycling and the is not fault code on the dianostic led. The ... A: You will not get a fault code until all the attempts to light have been tried. The gas valve ... | |
| American Standard Freedom 80 Single Stage | 5/31/2011 |
| Q: The blower motor has stopped working and is just making a humming noise and there's a overheated ... A: It could be just a run cap. You can try to replace just the cap to see if that fixes the problem. ... | |
| Potential AC problem | 5/26/2011 |
| Q: Craig, I've got a 3-story townhome in Delaware (built in 2000) about 2,000 sqft, with a great deal ... A: Two things to start with... The physical size of the unit means nothing. The higher the SEER ... | |
| TRANE XE90 AIR FLOW | 5/24/2011 |
| Q: I replaced the capacitor and the blower wheel yesterday. Last night the air ran great but as I ... A: There are quite a few things that can cause the problems you are having. A hot motor is a judgement ... | |
| Disconnect line | 5/24/2011 |
| Q: The guy told me my warranty company won't cover the cost to replace the capacitor or the motor ... A: Building codes require that a means to turn off power be in line of sight. I would have to guess ... | |
| Heil Package Unit Evaporator Coil | 5/23/2011 |
| Q: We have a 6 ton Heil package unit. Our AC is working now, but was told that we have a leak in ... A: I do not understand how it will not work next winter due to the amps. That does not make any sense. ... | |
| New AC motor or new unit | 5/23/2011 |
| Q: I have a 12yr old York,seer 10, AC unit that has motor that I am told is leaking oil. Should I pay ... A: Motor leaking oil sounds a bit odd to me. If the motor is not noisy and is running, then I would ... | |
| Good for Brand for Replacement A/C | 5/20/2011 |
| Q: I have a two-story 3,000 sf house in Texas (it's hot here in spring/summer/fall, and does get cold ... A: The footage is not and should not be what determines the size of the unit. The footage is only one ... | |
| Airflow from duct | 5/19/2011 |
| Q: I recently purchased a new heat/ac unit and installer had to repair or replace some of the duct ... A: I would have the contractor fix the problem with the air flow. The problem is wether or not they ... | |
| goodmen heatpump | 5/19/2011 |
| Q: I have a Goodman heat pump the airhandler is in my atic it will only reach temp. if i turn it to ... A: There could be any issues causing things to melt. It can be anything from faulty equipment to ... | |
| HVAC GOODMAN AC FURNACE | 5/17/2011 |
| Q: I have a 4 year old Goodman Furnace and AC unit. The AC lines froze up back to the furnace on first ... A: If there are not wires connected to the pressure switch, then the board is going to flash that code. ... | |
| acid burn out ac Compressor | 5/13/2011 |
| Q: The last contractor who replaced a 3 1/2 Copland copressore ( that failed via acid burn out) left ... A: I am not sure Copeland would do anything for you to he honest. Although filing a compliant might ... | |
| outside compressor | 5/12/2011 |
| Q: .just bought 2 payne central air units, and have a lot of pine trees around here. whats going on is, ... A: It is not an issue to remove the top with the motor attached to clean out the unit. It can be done ... | |
| Air Conditioner | 5/12/2011 |
| Q: I have a new portable ac unit in my house with the water draining into a 5 gallon bucket and the ... A: My dog drinks the water that drains on the outside of my home with no ill affects that I have ... | |
| evaporator coil | 5/10/2011 |
| Q: your time is greatly appreciated. My evaporator coil continues to ice up. I looked at the coil and ... A: I am not sure where to get the gasket, but I would think any of the supply houses that sell furnace ... | |
| evaporator coil | 5/10/2011 |
| Q: your time is greatly appreciated. My evaporator coil continues to ice up. I looked at the coil and ... A: The rust is normal, and unless severe does not require a coil change out. Since some of the metals ... | |
| Perform Leak test or just replace the a/c unit? | 4/28/2011 |
| Q: I live in Los Angeles; 2 story, 3500 sf house with central air built in 2000. We have two Corsaire ... A: The ducts leaking have nothing to do with losing refrigerant. Ducts leak out air, if anything. ... | |
| Heil package unit problem | 4/27/2011 |
| Q: I have a Heil package unit model#PHF342000K00A1. It is not working when I try to turn on the a/c. ... A: I need a bit more info. The next time the unit acts up and does not seem to be working, you need to ... | |
| Central air unit | 4/26/2011 |
| Q: I live in a 2 family home. I live on the first floor and my tenant is on the second floor. They tend ... A: I am not sure if there is much you can do. Depending on the way the home was built, it may not be ... | |
| RUDD AC/HEAT PUMP COMBO | 4/15/2011 |
| Q: We have an Older RUDD ac/heat pump combo. I hope u can answer a few questions. The only outdoor ... A: I am not sure what you mean by videos, but I do not have any... The small cap is the fan run cap. ... | |
| My AC won't reduce the amount of humidity! | 4/13/2011 |
| Q: I recently found this past question for you and I am having the EXACT same problem! AC units are ... A: Lowering the air temp, increases the humidity levels! If moisture is not removed, then the RH% ... | |
| air conditioning | 4/12/2011 |
| Q: air conditioningI have a 14x65 mobile home with a coleman gas furance inside the home which i use ... A: Base on the size, I would think the unit would keep up, but size alone is not enough. Depending on ... | |
| Atomizing Humidifier | 4/10/2011 |
| Q: I am trying to hook up a 24 volt actuated atomizing humidifier and have some question When I ... A: Now that I have what I need, I think I can help... I am guessing the wires are the wires that go to ... | |
| Heat Pump question | 4/7/2011 |
| Q: 3 months ago we had a new Rheem RHKL-HM4821JA variable speed air handler with 1-15KW strip heat & a ... A: Just has the unit will drain out water in the summer to the outside, the outside unit will also ... | |
| Hvac contractor on outdoor unit | 4/2/2011 |
| Q: I had a local company come do an inspection on my ac system yesterday and the tech told me it is ... A: All contactors are clearly marked for the amp rating and coil voltage. If the marking is at a poit ... | |
| G60UHV (X) Lennox | 3/31/2011 |
| Q: I have a G60UHV (X) heater, it stopped working suddenly. I looked thru the sight glass and the flame ... A: I believe this is the manual for your furnace. It has troubleshooting tips included. ... | |
| Blower Issues? | 3/29/2011 |
| Q: I'm really hoping you can help!! I don't have the make and model # handy but here goes...What I've ... A: WHEW....this is clearly a problem and hard to deal with sight unseen. I really need make and model ... | |
| Trane AC/Heater Blower will not stop running | 3/25/2011 |
| Q: I have a Trane AC/Heater unit and my problem is the blower will not stop running. I have check to ... A: I would guess the control board has failed. Granted there can be other issues that can cause the ... | |
| fan motor belts | 3/25/2011 |
| Q: I have just replaced 2 bx 100 belts on a RTU, the old ones were damaged I assumed because the ... A: The pulleys do not get loose, the belts stretch with use. The pulleys need to be lined up to get ... | |
| 2nd level no heat-boiler system | 3/24/2011 |
| Q: I have a Weil-McLain VHE water boiler system with two thermostats. The second floor thermostat ... A: You have some sort of electrical problem with the zone system. Clearly I do not have knowledge of ... | |
| HVAC | 3/20/2011 |
| Q: Is a 400 square inch return enough for ~1500 square foot of space. I have temperature ranges ... A: I am not sure what happened to this question. I normally get back much quicker. I did not remember ... | |
| flashin light | 3/19/2011 |
| Q: I just got this house and I got a flashing light that blinks in a sequence 4 on a gmnt 100-4 could ... A: The code indicates that the unit tripped on high limit switch. Dirty air filters and poor air flow ... | |
| Furnace running on Generator | 3/15/2011 |
| Q: I have a 3 year old Goodman natural gas furnace. I removed the off/on (kill switch) and replaced it ... A: That would have been my guess. One more thought...some generators produce DC voltage then convert ... | |
| Heat Pump Question | 3/14/2011 |
| Q: I have a Heat Pump installed. I recently replaced my furnace with a new Lennox, but kept my 8 yr ... A: I would not think the problem would have anything to do with the furnace. Although I am not sure, ... | |
| Furnace running on Generator | 3/10/2011 |
| Q: I have a 3 year old Goodman natural gas furnace. I removed the off/on (kill switch) and replaced it ... A: My assumption is the furnace is 110v. You need to verify you have the plugs wired correctly. The ... | |
| UV light whole-house HVAC air purifiers | 3/7/2011 |
| Q: Do these UV light air purifiers work? Placement is supposed to be near the AC coils or in the cold ... A: The UV lights work. They are installed inside the air handler/furnace. UV lights are used in ... | |
| air handler will not start | 3/5/2011 |
| Q: I changed motor and capacitor because trusted HVAC tech told me that was the problem. Reapplied ... A: What hummed? It is hard to tell what the problem is. It could have been a bad motor/run cap. You ... | |
| York rooftop m#zf036n08a2aaa1 - | 3/1/2011 |
| Q: Installed unit -9 flash limit , limit trip/ ignition failure- Have you heard of any info- the all ... A: Does the unit work in heat at all? How old is this unit? Are you the installer or owner? You need ... | |
| High Humidity | 2/26/2011 |
| Q: I live in Miami where humidity is normally higher than most places. I moved into a new apartment 3 ... A: A unit that is low on refrigerant has a leak. If the leak was not fixed then the problem is going ... | |
| Air filter for window unit AC | 2/23/2011 |
| Q: I cannot find anyone who has an air filter for my room air conditioner unit aka window AC unit. I ... A: I was not able to find anything, I called someone I know that works with that stuff often was given ... | |
| AC upgrade | 2/19/2011 |
| Q: I need to know if its possible to upgrade an SEER10 air conditioner in to SEER 13 or more. Are there ... A: Not really. Companies use different methods to achieve higher SEER ratings. It all has to do with ... | |
| nightly compressor noise now | 2/16/2011 |
| Q: For the past couple weeks we have been trying to troubleshoot why our HVAC unit is making a horrible ... A: It might be horrible noise, but normal for a heatpump and does not cause harm. There is groan ... | |
| outflow/return equal? | 2/14/2011 |
| Q: Should the heated air outflow from the furnace hot air plenum be equal in area with the return air? ... A: In order to tell you what size you need and where, you have to know how much air you need to move. ... | |
| outflow/return equal? | 2/13/2011 |
| Q: Should the heated air outflow from the furnace hot air plenum be equal in area with the return air? ... A: The return is bigger because the velocity is slower on the return. "If the hot air is say 360 sq.in ... | |
| GE Zoneline 3100 - Heat pump issue | 2/3/2011 |
| Q: I have a GE Zoneline 3100, Model AZ31H12D3CV3, Serial # FM 888993, manufactured in 1995 The problem ... A: I think you have gotten your money's worth out of this 15 year old unit. I personally would not put ... | |
| a/c install code violations | 2/1/2011 |
| Q: just had the complete system replaced by a licensed a/c company. Today the inspector came by and ... A: The contractor in most cases is responsible for any corrections and reinspection fees. You paid them ... | |
| Air con Question | 1/29/2011 |
| Q: I have a reverse cycle ducted air conditioning system that has not been performing well for a while ... A: Since the unit was designed with two fans, both fans need to be working. The lack of the second fan ... | |
| Spray foam and choosing SEER | 1/26/2011 |
| Q: I have 1100 sg feet office which is up and down. I am going to spray foam and was wondering does it ... A: The SEER is only serves on how much energy is required to produce cooling. The higher the SEER, the ... | |
| Losing heat on AUX HEAT | 1/26/2011 |
| Q: I purchased a 5 year old manufactured home about a year ago. Last winter we were doing a lot of ... A: The unit ought to have a control board in it with a troubleshooting LED. It will blink a certain ... | |
| Armstrong air Ultra v 80 | 1/25/2011 |
| Q: have an Armstrong air Ultra v 80. 2002 yr. First I had code blinking 4 times indicating high limit ... A: DO NOT LEAVE THE HIGH TEMP JUMPED OUT!!!!!!!! It serves an important safety. One of the common ... | |
| dust on electronic products | 1/23/2011 |
| Q: I have a DC90 furnace, and the last couple of months we have found a light brown colored dust on TV ... A: Cleaning out the furnace is not going to get rid of the problem. The "dust" or whatever it is, is ... | |
| heat pump heating mode results | 1/22/2011 |
| Q: I live in a 2nd story apt with an all-electric heat pump in Kentucky. I suspect my heat pump is not ... A: The heating temp difference is going to vary with the outdoor temp. Unless you have a low temp ... | |
| Backwards TXV valve | 1/16/2011 |
| Q: purchased complete electric Carrier 13 seer 2005 HP from Large Dept store retailer. Had 20 + visits ... A: The pressures do not mean much to me, because I do not know what kind of refrigerant you are using. ... | |
| Heater's White Flakes | 1/15/2011 |
| Q: I have an issue similar to one you answered in September, but mine is not going away - I live in a ... A: There is no telling what the flakes are. The only way to find out is to call a IAQ company out to ... | |
| Trane Xe80 gas furnace | 1/15/2011 |
| Q: I have a unit that had normal blinking light until ther was a call for heat then it givave 3 flash ... A: Unless you have the proper tools to work on the furnace, there is no way you are going to know what ... | |
| HEAT PUMP BLOWING COLD AIR | 1/14/2011 |
| Q: I live in Florida, and have a heat pump system. It's been blowing hot/cold air intermittently, and ... A: Welcome to life with an air source heatpump. A heatpump is limited by the outside temp. The colder ... | |
| Digital Thermostat not maintaining set temperature | 1/13/2011 |
| Q: We are having trouble regulating the temperature in our home. It has never been an issue in the ... A: The problem could be your furnace. Before blaming the problem on the stat, some troubleshooting ... | |
| Furance | 1/12/2011 |
| Q: I have a gas furnace with a electronic thermostat. The problem is the heat doesn't stay on. We ... A: Chances are the problem is with the furance. You need to sit by the furance the next time it tries ... | |
| LP furnace blanket | 1/12/2011 |
| Q: i live in a house with the original LP horizontal furnace. it was just your "average" furnace 26 ... A: Insulating the furnace is not a bad idea, how much energy it will save you is up for question. I ... | |
| electric oven to heat | 1/11/2011 |
| Q: I live in a small apartment that is cold, even with the heat on during the winter. Turning the ... A: That is not a good idea. The oven can overheat and cause a fire in the home. Electric heat is the ... | |
| Intertherm defrost problem | 1/9/2011 |
| Q: I had asked you the question -I have a Nordyne Intertherm T3QC series heat pump. I had it serviced ... A: After digging around, I discovered that I was thinking of te wrong board. Below are a couple of ... | |
| possible defrost problem | 1/7/2011 |
| Q: I have a Nordyne Intertherm T3QC series heat pump. I had it serviced this past summer and the tech ... A: To put the unit in test, remove the pin jumper from the time pins and place on test pins. The 30, ... | |
| Internet Sales | 1/6/2011 |
| Q: I have two integrated split systems that are very old and in need of replacement. The most ... A: I am not rusty, but I will have this to say.. I do not like Goodman and avoid at all costs. Pros, ... | |
| Furnace blowing cold air | 1/6/2011 |
| Q: We have a Rheem furnace about 4-5yrs old and it is blowing cold air. We shut off the heat and ... A: There can be many reasons for the unit not working. You need to turn the power completely off to ... | |
| AC install | 1/5/2011 |
| Q: I was wondering if you can give your opinion on this. I just bought colonial 2300sq ft 4 bed house ... A: I do not do this sort of pricing on this site. It is just not possible without know the complete ... | |
| condensation drain | 1/5/2011 |
| Q: I read your comment about using a dry well for the condensation from an air conditioner. I have a 4 ... A: There are many variables here. The amount of humidity that is normally in the air where you live ... | |
| thermastat rewire | 12/17/2010 |
| Q: I HAVE AN OLD AMERICAN STANDARD MODEL NUMBER ASYSTAT606 IT NO LONGER FUNCTIONS PROPERLY THERE ARE 6 ... A: The old t-stat is a two stage heat, the new one is only a single stage heat. You need to determine ... | |
| CPH Settings for Honeywell VisionPro 8000 | 12/16/2010 |
| Q: I have just recently replaced my old thermostat with a Honeywell VisionPro 8000 unit to match my new ... A: The two stages of heat do operate at the same time, when needed. What actually happens is the first ... | |
| CPH Settings for Honeywell VisionPro 8000 | 12/15/2010 |
| Q: I have just recently replaced my old thermostat with a Honeywell VisionPro 8000 unit to match my new ... A: The CHP has no affect on the TD. The CHP just restrict how many times within a 60 minute period of ... | |
| heat pump / emergency heat | 12/14/2010 |
| Q: My thermastat is set on 70, but when I woke up this morning, it was 60 degrees in the house and my ... A: The problem can be the heatpump, the strips or both. You *might* get things working if you turn off ... | |
| heat | 12/14/2010 |
| Q: I have a luxair heating /Ac unit. The Ac works but The heat does not work at all. THe blower just ... A: It is possible that the heatpump is not switching to heat. Turn the unit on to heat. Go and feel ... | |
| system will not turn on | 12/12/2010 |
| Q: My heating and cooling system does not turn on at all. I noticed my home was a little cool so I ... A: Since I do not know what checking the breakers means, make sure you actually turned them off, then ... | |
| 2-stage heat pump + 2 stage cool wiring to therm??? HELP!!! | 12/12/2010 |
| Q: At this point it cools in both stages fine... but the heat is a joke. The heats turns on at first ... A: I my guess is the problem is not the t-stat. If you turn the t-stat temp. setpoint to the point ... | |
| Heat Pump vs Conventional Electric heat | 12/11/2010 |
| Q: Im wondering if running emergancy heat on a heat pump uses the same amount of electricity as a ... A: Just running the heat strips will not harm anything. I would use the heatpump at much as possible ... | |
| Heat Pump vs Conventional Electric heat | 12/10/2010 |
| Q: Im wondering if running emergancy heat on a heat pump uses the same amount of electricity as a ... A: The question does not have a cut and dry answer... In some cases is it cheaper to run strip heat ... | |
| replacing a intermittent control | 12/8/2010 |
| Q: I have a lenox gas furnace. The intermittent corntrller is bad. Its the Honeywell S86H. The new one ... A: The wire that went to 24v 1 goes to 24v grd. ... | |
| water to air heatpump | 12/1/2010 |
| Q: My 3 ton florida heatpump has a SEER of 12. I wonder how the SEER is calculated as far as the fact ... A: What is takes to get the water to the unit plays no part in the SEER rating at all. It is just not ... | |
| water to air heatpump | 11/30/2010 |
| Q: My 3 ton florida heatpump has a SEER of 12. I wonder how the SEER is calculated as far as the fact ... A: The pumps plays no part in the SEER rating. The rating is strictly for the unit and does not ... | |
| Hvac balancing/ Cooler 2nd Floor | 11/19/2010 |
| Q: We have a 2 story, 4 bedroom home, where for some reason the 2nd flr is colder than the 1st flr. We ... A: You are lacking in the insulation dept. The 6" is R-19. I would not have any less the R-30. The ... | |
| condenser noise | 11/18/2010 |
| Q: Craig, I have an occasional rhythmic bang, hiss, bang, hiss etc. noise in the outside condenser ... A: Units can make all sorts of noises, that are for the most part harmless. You can make a quick audio ... | |
| Hvac balancing/ Cooler 2nd Floor | 11/18/2010 |
| Q: We have a 2 story, 4 bedroom home, where for some reason the 2nd flr is colder than the 1st flr. We ... A: You have an odd issue. I say this because it is normally hotter upstairs. First thing..where are ... | |
| standing pilot light on furnace will not light | 11/16/2010 |
| Q: I'm hoping you can help pinpoint my problem. I have a small natural gas furnace in my garage that I ... A: I would attempt to clean the pilot orifice out. It just comes apart and with a thin wire and some ... | |
| HVAC | 11/12/2010 |
| Q: I recently noticed that it looks like we have a small amount of water dripping from the corner of ... A: Condensation will happen anytime the surface is at or below dew point. The ducts might be cold ... | |
| Heat Pump issue - Carrier | 11/9/2010 |
| Q: HVAC guy said defrost board is the issue here ... but he didn't seem sure. At temps under 45 degrees ... A: I watched the video, and that seems a bit odd with the way it is running. The the hissing grunting ... | |
| luxaire acclimate 8.t series | 11/7/2010 |
| Q: i been trying for over a week to turn on my heat it is luxaire acclimate series 8.t and the led ... A: What you need to do is watch and take notes. Once the unit turns on a series of events is going to ... | |
| luxaire acclimate 8.t series | 11/5/2010 |
| Q: i been trying for over a week to turn on my heat it is luxaire acclimate series 8.t and the led ... A: The code just means the unit is trying to light, but for whatever reason does not have a given ... | |
| Coleman 7970a856 ac works but heat will not stay on | 11/4/2010 |
| Q: I replaced a bad limit switch and tried a new thermostat but no luck. I also cleaned the pilot and ... A: The a/c might be running ok, but unless you connect a set of gauges and take temp readings you ... | |
| Blower blowing cold air in heat mode | 11/3/2010 |
| Q: I have a R22 heat pump (Westherking 14 seer) which was recently installed to replace a defective ... A: It sounds to me the unit is not going into defrost, not defrosting quick enough or the heat strips ... | |
| Coleman 7970a856 ac works but heat will not stay on | 11/3/2010 |
| Q: I replaced a bad limit switch and tried a new thermostat but no luck. I also cleaned the pilot and ... A: The limit switch may not have been bad. It is possible the limit switched opened to protect the ... | |
| AC question | 10/30/2010 |
| Q: I am pricing a new furnace and central AC for our 2500 square foot, two story Saint Louis home. I ... A: No matter what type of system you have, a properly balanced system will keep the temps somewhat even ... | |
| Ruud Deluxe 90 gas furnace not starting | 10/29/2010 |
| Q: I have a Ruud Deluxe 90 Plus gas furnace model UGEB-12EE-JS, 125,000 btu, just over 10-11 yrs old. ... A: There is a series of events that have to happen to get heat. I would appear from your description ... | |
| Re: Janitrol AC Unit | 10/27/2010 |
| Q: First off hope you're having a good day. My question is we bought a new home in 2007 and in 2009 ... A: If there is truly a leak it needs to be found. Sometimes the lineset, cond unit and air handler are ... | |
| Cause and Effect regarding Installation | 10/26/2010 |
| Q: An air conditioner was installed in a residence approximately one year ago. It appears that the ... A: Regardless of the pan switch, the pan should be able to support itself full of water. The pan ... | |
| central home airconditoner | 10/25/2010 |
| Q: I plan to have my existing non-working home air conditioner replaced come spring. I was told by 2 ... A: The Amer. Stand. are good units. They company is owned by Trane. Both of the A S units I believe ... | |
| central home airconditoner | 10/24/2010 |
| Q: I plan to have my existing non-working home air conditioner replaced come spring. I was told by 2 ... A: You might need a 2.5 ton, but you do not NEED a 14 or 15 SEER. You are going to get a min. of 13 ... | |
| Custom job - Blower motor wiring help | 10/23/2010 |
| Q: I recently attached a used blower motor to the ceiling in my garage for ventilation. I dont know how ... A: The number you gave me for the motor is no good. Since different manufactures use different colors, ... | |
| AC Flow | 10/19/2010 |
| Q: I have a brick ranch house with a Rheem AC air handler unit in the attic with AC vents in the ... A: The location of the duct in some cases can make a difference. I would consider some other problems ... | |
| Rheem gas furnace blows the 24v fuse | 10/18/2010 |
| Q: My Rheem gas furnace stopped working. After taking some measurements I changed the 24V transformer ... A: The problem is not the run cap or the fan motor. The two have nothing to do with the blowing of the ... | |
| Carrier 58APA upflow induced-combustion furnaces | 10/18/2010 |
| Q: We have Carrier 58APA upflow induced-combustion furnace. Since last weekend -It starts to fire up ... A: The flame sensor is either faulty or dirty and needs to be cleaned. I attempted to look up the ... | |
| No heat-A/C is fine-power is fine | 10/17/2010 |
| Q: I have a Gibson MODEL# KG6RC 080C-16B AND SERIAL #KGD060909799 unit. Today is the first day we have ... A: The furnace has a control board in it that might tell you why it failed. The board is located in ... | |
| Tempstar TX5300 heat pump | 10/17/2010 |
| Q: My electric Tempstar tx5300 defrosts even when it is not real cold? Does it have a thermostat or ... A: Some units have different means of defrost. Some are time and/or temp. Some units have a means to ... | |
| crack in plastic induced draft blower | 10/16/2010 |
| Q: My system was vibrating loudly, I turned off and called AC repair. They found insulation from unit ... A: I find more and more a basic call is around $200. Prices vary greatly, but the price you paid is ... | |
| Replace evaporator coil | 10/15/2010 |
| Q: Our upstairs AC froze up on us and after a service call we found out that both AC units have leaks ... A: To start with, your furnace might still be under warranty, just follow the link for more info ... | |
| Replace evaporator coil | 10/15/2010 |
| Q: Our upstairs AC froze up on us and after a service call we found out that both AC units have leaks ... A: Your question to me has me thinking... I really need a bit more info from you to give you something ... | |
| furnace blower turning wrong direction. | 10/14/2010 |
| Q: I just replaced the blower motor, but when it is running the fan is turning in the wrong direction & ... A: Some motors have wires or plugs that allow the rotation to be changed. You need to look the motor ... | |
| Western Gravity Furnance: Therm0stat or thermopile pilot generator | 10/14/2010 |
| Q: I recently purchased a home that has a Western Gravity Furnace (model # 8G-75, BTU input per hour ... A: You need a millivolt thermostat. They are special for the application you have. A standard stat ... | |
| comparison | 10/13/2010 |
| Q: I am thinking of replacing my heater/AC and was wondering how to compare a high efficiency gas ... A: I am going to start this way... Heatpumps and A/C units transfer heat from the indoor to the ... | |
| cat urine odor coming from air return | 10/8/2010 |
| Q: The past few months I have noticed a cat urine smell in certain parts of my house. Some days it is ... A: I do not think I have ever heard anyone describe the odor from the a/c as cat urine and not have a ... | |
| heating and ac | 10/8/2010 |
| Q: I have a 3 month old unit and from the day it was installed I have not been happy. I first had all ... A: The dirt is a result of the new unit moving more air then the old unit. The stuff that was in the ... | |
| no heat | 10/6/2010 |
| Q: I have a Trane 1200xl ac/gas furnace system. My AC blows ice cold as it should. When I switched the ... A: I think you have done all that you can do. It is time to call for some help. The next steps are ... | |
| THERMOSTAT | 10/4/2010 |
| Q: I RECENTLY BOUGHT A RTH111B THERMOSTAT TO REPLACE MY OLD DIAL ONE HOOKING THE 4 WIRES COMING OUT OF ... A: There are many variables that have to be considered when installing a new stat. It is not cut and ... | |
| 30+yr old sears furnace | 10/3/2010 |
| Q: I want to replace my furnace with a more efficiant model. I have a 130000btu input with what i can ... A: You do not *need* a 90 afue rated furnace. The afue rating is compared to how much money it will ... | |
| Heil heatpump/ AC | 10/1/2010 |
| Q: the other day the fan on my outdoor unit stopped spinning, when it goes to kick in it clicks but ... A: You are at point in the game where a multi meter is needed to determine why the unit is not running. ... | |
| Heater in my apartment | 9/28/2010 |
| Q: I recently moved into a brand new apartment and had the chance to run my heat for the first time ... A: Sometimes when heat strips are turned on for the first time ever things happen. Normally there is a ... | |
| Drop Ceiling and HVAC requirements | 9/26/2010 |
| Q: Our church is in the process of renovating the youth group area. Their current plan is to remove the ... A: The height may not change things much. It really depends on the height to begin with and other ... | |
| Replacement of old Miller thermostat | 9/26/2010 |
| Q: I am trying to replace a Miller thermostat with a new programmable Hunter thermostat. It is not ... A: The X wire can go to the common on the t-stat. The old stat with the W2 and W3 is just three stage ... | |
| Air conditioner not cooling | 9/25/2010 |
| Q: My air conditioner is not cooling. It seems to be blowing air in one or 2 rooms. Air is cooler but ... A: At this point you are going to have to call for service. It appears that you have power where it ... | |
| Air Duct Question | 9/23/2010 |
| Q: I own a double wide trailer. The vents lining both sides of the trailer blow out heat. However the 4 ... A: Well, I just wondering if you have elect heat strips, as they are the most expensive form of heat. ... | |
| furnace blowing vents | 9/23/2010 |
| Q: I have a furnace with 15 blowing vents. I found very useful to block totally all blowing vents on ... A: You can compare what you did to trying to breathe through a straw. Units have to have the proper ... | |
| Odor from A/C coil | 9/22/2010 |
| Q: Have you had reported incidence on Armstrong RPGE Units having foul odor coming from the coil? I am ... A: The odor is common with all brands. It really has to do with the way a unit works vs. the brand of ... | |
| Air Duct Question | 9/21/2010 |
| Q: I own a double wide trailer. The vents lining both sides of the trailer blow out heat. However the 4 ... A: It is possible they are returns. You can find out if there is air moving though them with a piece ... | |
| HVAC floor diffusers | 9/21/2010 |
| Q: I live in South Carolina, where it is humid and many homes have crawl spaces. What is the best way ... A: You can wrap and seal up the area with sheets of rubber type insulation. ... | |
| rust inside furnace | 9/20/2010 |
| Q: We are purchasing a home. Our home inspector found rust inside the furnace, which appears to be ... A: My best advice if you are concerned about the rust is to contact a local HVAC shop to have the unit ... | |
| replacing an existing furnace questions | 9/19/2010 |
| Q: I have a 21 year old Rudd 90% + efficient natural gas furnace that I am considering replacing ... A: I do not think the length does not exceed that of the units specs. I looked at some info and could ... | |
| Possible irritating particulates in home. | 9/17/2010 |
| Q: A fellow employee came to me this morning with a question about a problem he is having in his home. ... A: It is hard for me to say what the problem could be, if the problem is even caused by the a/c unit. ... | |
| Air Handler Runs - Compressor does not | 9/16/2010 |
| Q: I have a carrier FV4BNF002 Air Handler and a 38TSA024 (2 Ton) Puron compressor unit. I notice my air ... A: I had to think about this, though it could be a loose wire. Since banging the side of the unit ... | |
| AC Main drain pan | 9/15/2010 |
| Q: My main drain pan has rusted out, can it be replaced my HAC is almost 17 years old. A: It is hard to say if the drain pan can be purchased. You might be able to have a shop make a new ... | |
| Drywall mildew | 9/9/2010 |
| Q: Drywall in closet gets mildew during summer months. I tore out a piece of drywall, down as the ... A: It might be possible the duct work is leaking and will need to be resealed or replaced. There are ... | |
| noice | 9/9/2010 |
| Q: ac unit locked up(not sure when maybe overnite),noticed this moring that it did. I shut unit off.. ... A: Your question is a bit hard to follow... Some units have a standing pilot, so it may not shut off. ... | |
| spacepak | 9/2/2010 |
| Q: Craig, I'm renovating a 1 family home 20x60 2 floors and a basement. I had a Spacepak system ... A: The size and the fact the space is on the second floor is just not enough info to determine tonnage ... | |
| lennox elite 12 series A/C unit water accumulation | 9/2/2010 |
| Q: I have central air unit in my attic that I recently noticed excess water accumulated in the drip ... A: Most of the time the water overflows the pan because of a plugged up drain line. If the drain line ... | |
| DUCT SIZING | 9/1/2010 |
| Q: ! What rules on how to resize a ductwork on an add-on to an existing furnace? I have put in a ... A: Ducts are sized according to the CFM rating of the unit. We use a ductulator to determine duct ... | |
| txv for benchmark coil | 9/1/2010 |
| Q: i have a benchmark coil...M- BV132 48+X2-AKX26... and the TXV on this coil has mechanical ... A: The 43 VGA, refers to a Sporlan part, but it is not enough info to order a new valve. There is a ... | |
| Heat pump system | 8/31/2010 |
| Q: New system put in last October '09. Hasn't worked right since. Goodman system. I keep it set at 78 ... A: The problem can be many things and many problems. Based on the little info you have told me it is ... | |
| AC troubleshooting | 8/31/2010 |
| Q: How do I check for 24 volts at the thermostat? I have a borrowed multimeter, but not sure how to ... A: You do not need to see if you have 24v at the stat. Things are coming on with the stat, so the stat ... | |
| A/C unit won't cool | 8/30/2010 |
| Q: I've just moved into a home with an existing Armstrong Concept 10 A/C unit that's at least 15 years ... A: Anything from a power outage to a bad compressor can cause the unit to trip. Unless you have a ... | |
| air not flowing right in home | 8/28/2010 |
| Q: I will give you the history before asking my question; I believe it will help in your answer. I ... A: You need to locate a company in your area that does "test and balance". They will have the proper ... | |
| Closing off vents | 8/28/2010 |
| Q: I have 2 or 3 vents I would like to partially close. I tried using the magnets but they aren't very ... A: Most of the HVAC suppliers I deal with sell the bits and pieces you need. Most of them will not ... | |
| Short to ground dead compressor | 8/27/2010 |
| Q: We had some recent work done on our building. During this time we realized that one of our two air ... A: If the cement in some way caused enough reduction in air flow, then that can lead to a compressor ... | |
| Heat pump location | 8/26/2010 |
| Q: I just had my 20-year-old Janitrol heat pump and air handler replaced with a Goodman system. The ... A: Having the roof above the unit is a bad idea, unless it is clearly tall enough that no hot air from ... | |
| ac not kicking on | 8/25/2010 |
| Q: We have a ruud achiever 12 unit, sorry the model numbers are bleached out by the sun. It has been ... A: Do you notice anything come on? Does the outdoor fan move? Does the indoor fan run? Try setting ... | |
| return air for Goodman Unit | 8/23/2010 |
| Q: I have a yr old 4-ton, 2-stage Goodman 16 seer split unit. I'm located in North Alabama. The ... A: It is hard to really say what is wrong, but my guess is you need the air flow balanced out in your ... | |
| Not enough air to Master Bedroom | 8/22/2010 |
| Q: The master bed room is the furthest room away from 4 ton unit in 2300 sq ft home. A/c company that ... A: It would seem to me that just balancing out the system will get more air to the one room. Adding ... | |
| A/C pipe with black foam insulation frozen | 8/22/2010 |
| Q: We recently noticed our air conditioning isn't working as well as normal, we went into our utility ... A: The ice is not normal and a clear problem. A lack of a filter could be a dirty coil. The dirty ... | |
| Should I buy a seer 16 or seer 13 system | 8/21/2010 |
| Q: How can I tell if it is worth the extra money to buy a Seer 16 system vs a seer 13. The cost ... A: That was helpful to me. In my opinion I would not use the Amana. Amana is made by Goodman. I am ... | |
| Should I buy a seer 16 or seer 13 system | 8/21/2010 |
| Q: How can I tell if it is worth the extra money to buy a Seer 16 system vs a seer 13. The cost ... A: Knowing the size of the unit and the cost of power in your area, you can figure out how much per ... | |
| Air handler cooling coil | 8/19/2010 |
| Q: I have a Trane TWE030C140B0 air handler combined with an XE1000. Both units are just 6 years old; I ... A: The rust is normal. The metal that holds the coil together is made of galv. steel. Almost all ... | |
| Air unit will not come on. | 8/18/2010 |
| Q: Model(MC42B-1A) I checked breakers(good) I am getting 240v at the outside unit. When I push in the ... A: Sorry, I did not notice the model number in the first post. You must have an older system as the ... | |
| Weatherking ahu txv placement | 8/17/2010 |
| Q: M#17AHSA36HMJ01,S#M160602118 Found txv sensing bulb just hanging loose outside of ahu. Suction line ... A: The bulb needs to be attached to the suction line under the insulation. The bulb should also been ... | |
| Air unit will not come on. | 8/17/2010 |
| Q: Model(MC42B-1A) I checked breakers(good) I am getting 240v at the outside unit. When I push in the ... A: My first thought is the 24v control voltage is missing. You need to make sure there is voltage ... | |
| recharge | 8/15/2010 |
| Q: What determines how long to vacuum a system before recharging after compressor replacement? Is ... A: Micron is for vacuum only. It is a special piece of equipment used to make the measurement. You ... | |
| getting desperate, please help | 8/15/2010 |
| Q: Sorry in advance for lack of terminology/specificity..I am just a mom trying to keep cool in the ... A: The drier was likely added when the new coil was installed, a normal thing to do. I think you ... | |
| recharge | 8/14/2010 |
| Q: What determines how long to vacuum a system before recharging after compressor replacement? Is ... A: The size of the unit to start with. You run the vacuum until you achieve the micron reading you ... | |
| HVAC vs Split units feasibility | 8/12/2010 |
| Q: My company is going to construct a new building (ground + 2 floors). The design is for ground + 3 ... A: Chillwater is the way to go. It will be cheaper in the long run..do the math.. Two chillers, ... | |
| air contitioner | 8/12/2010 |
| Q: yes i have a Goodman unit in the upstairs bonus room and i have had 5 or 6 different people to come ... A: I need you to start from the beginning here....Model number(s) of the system, type of t-stat. How ... | |
| HVAC not cooling right | 8/11/2010 |
| Q: Our Weather King HVAC is not cooling right after just 4 months of use. The cool is only staying on ... A: As you might have figured I rejected the other posts because I have to in order to clear them out of ... | |
| HVAC air handler problem | 8/10/2010 |
| Q: a/c running fine cold air - then suddenly smells like a real hot iron and air is now hot - vents hot ... A: The heatpump has a valve in it that cause the unit to go from heat to cool. It is possible the ... | |
| dripping, puddling water from air unit into ceiling | 8/9/2010 |
| Q: We had a new roor put on last year, and have had extreme heat so far this summer, our house is 2 ... A: It sounds like the ducts need to be reinsulated and sealed up or replaced. The a/c person should ... | |
| Air Conditioner Leakage | 8/8/2010 |
| Q: We have a Lennox Merit Series 10ACC air conditioning unit that is leaking water from somewhere. We ... A: It could just need the drain line cleared. The should be a PVC or copper drain line coming off the ... | |
| how to open a closed air duct? | 8/8/2010 |
| Q: I moved into a house with air forced heating. I recently got Central air put into the house but in ... A: You might try and find someone that has a camera that can be placed in the ducts to look for ... | |
| plenum connections | 8/7/2010 |
| Q: I'm installing a new heat pump split system and am down to two last questions. The supply air ... A: I am not sure how the ducts are meeting at the air handler, but a "pair of pants" might be a good ... | |
| central air conditioner not working | 8/5/2010 |
| Q: I installed a RTH221 Honeywell programmable thermostat that did not require the blue wire to be ... A: You likely caused a dead short in the control circuit. You may have blown a control fuse, burned up ... | |
| 5 amp fuse blowing on IFC | 8/4/2010 |
| Q: I have an American Standard Freedom 80 with an AC unit attached. Unit is about 7 years old and has ... A: You have a bad device within the control circuit or a shorted wire. Do not replace the fuse ... | |
| Air Conditioning running constantly | 8/3/2010 |
| Q: Our Central Unit (total electric) runs constantly never reaching optimal temperature until the temp ... A: This may not make much sense, but the unit running is better then the unit starting and stopping. ... | |
| a/c problem | 8/1/2010 |
| Q: i have a simply comfort commercial a/c unit.... the problem im having is the a/c compressor ... A: A common problem when this problem occurs is a bad compressor contactor. The contactor sticks ... | |
| Air Conditioner | 7/30/2010 |
| Q: Good Afternoon, About a week into our 10th straight day of 100+ temps, one of my two outside AC ... A: In order to troubleshoot a problem with the unit one must have a meter, knowledge of a/c systems and ... | |
| New HVAC | 7/29/2010 |
| Q: My home is nearly 30 years old, located in the Northern Neck of VA, and is a small A frame, about ... A: To start with the SEER rating of a unit does not determine how well it cools, it only determines how ... | |
| carrier tech2000 SS won't stay running | 7/28/2010 |
| Q: I have a carrier tech2000 SS system, model: 38TAU036300. For the past few days my condenser unit ... A: The model number you gave is not valid. It will come up on Carriers site. Since you did not ... | |
| Crankcase heater in residential cooling-only A/C | 7/25/2010 |
| Q: I have a Trane XL 1200 split system air conditioner (cooling only, no heat pump). It's 14 years ... A: Since you do not run the compressor when it is cold outside, I would not worry about replacing the ... | |
| A/C not working thermostat blank | 7/24/2010 |
| Q: We have a Rheem Prestige (Attic installed) 10KW Air handler model RBHL-25J11SMU, it is about 3 years ... A: There are three ways digital t-stats power...batteries, unit or both. You need to check to see if ... | |
| Arcoaire HVAC units circuit board and wires caught on fire and ruined the unit. | 7/23/2010 |
| Q: Have you received complaints about ARCOAIRE units catching on fire? We have a unit that caught fire ... A: Generally units do not catch on fire. Arcoaire is made by a company call ICP. I have installed ... | |
| Oil Under New Gas Furnce and A/C coil | 7/22/2010 |
| Q: My wife and I live in MA and recently converted to gas from oil. We had a brand new American ... A: The oil did not come from the unit. The oil if any in the motor is only a couple of drops. An ... | |
| Air Compressor Split coming on and off | 7/22/2010 |
| Q: I have a 3 ton R22 Goodman compressor and a 3 ton R22 TXV Heil air handler. Brand new. We have 42' ... A: To start off with, 55 psi suction is too low and will cause the unit to freeze up. The pressure on ... | |
| Residental AC problem/question | 7/21/2010 |
| Q: Since this seems like an AC issue, I am going to focus on house, AC, and summer information, but let ... A: The typical rule I use in the SE US is 400-600 sq ft per ton. Regardless of the zone system, the ... | |
| Standing water in pan | 7/3/2010 |
| Q: I recently moved into a new condo, I have been in for about four months now and discovered standing ... A: The water in the pan is not going to lead to mold in the home. The mold in the home is normally due ... | |
| a/c air handler trips circuit breaker | 7/2/2010 |
| Q: Janitrol heat pump air handler trips breaker in attic. The unit is cooling fine until the circuit ... A: How many amps is the breaker rated for? It is not common for just the fan motor in the air handler ... | |
| air flow problem -- could it be electrical? | 7/1/2010 |
| Q: I have had ongoing A/C units for the last 3 months or so, based on my previous troubleshooting, I ... A: From your description if sounds like you have a zone system, with the 1st and 2nd floors each being ... | |
| ac problems | 7/1/2010 |
| Q: "Good day to you and thank you and God bless you for the giving of your time because Lord know we ... A: I do not believe you need a prefilter before the electronic filter. Like anything else the filter ... | |
| Reem Gas Pack | 6/30/2010 |
| Q: I have a very old unit, don't know the model no. My air has been working OK, until yesterday. The ... A: The fan and transformer are two different things. A bad fan motor normally does not cause the ... | |
| Humidity | 6/29/2010 |
| Q: I keep my Thermostat on 68 all the time. My A/C still cools the same. I can find nothing different. ... A: To start with, typical A/C systems are not designed to work at 68. The comfort cooling range is ... | |
| York deluxe diamond 80 2 stage furnace/air conditioning unit. | 6/28/2010 |
| Q: I can't get the a/c to kick on. I put my "white-rodgers" digital controller to cool, brought it down ... A: The problem can be any number of things. Before you do anything else, you can check the breakers, ... | |
| Air Conditioner Coils and Motors | 6/27/2010 |
| Q: One of ours was blowing warm air. AC company came out and said the coils need to be replaced and ... A: The motor not holding oil seems kind of strange to me...I would not replace the motor unless it has ... | |
| Multi-zone Residential AC | 6/27/2010 |
| Q: I noticed that you were the only expert who specifically listed air flow problems as a speciality so ... A: The first thing that has to be done is have the right size unit to supply the entire house at one ... | |
| Valve needs repair | 6/26/2010 |
| Q: I had 2 lennox cb28uh units looked at yesterday. The technician said one unit was leaking freon ... A: I am not sure which valve is leaking and has to be replaced. I can not tell you if the valve is ... | |
| R12 to R134a | 6/24/2010 |
| Q: i have a 60 yr old compressor running on R12 and want to convert it to R134a , any immediate ... A: R-134a runs a slightly different pressures, and you are going to loose some capacity. You also have ... | |
| Commercial HVAC | 6/24/2010 |
| Q: Two questions. 1. I am currently getting quotes to heat and cool warehouse space about 8000 sp ft. ... A: It takes more then the size of the space to determine how much a/c is needed. I would guess two 10 ... | |
| Not Getting to Set Temperature | 6/23/2010 |
| Q: I bought a 1.5 story house in Indiana roughly 6 months ago. The house was built in 2006 and is ... A: As bad as it might seem, mechs normally do not check ducts out on the first call. The general idea ... | |
| My A/C and Coil combination are not in the AHRI directory | 6/22/2010 |
| Q: What are the eer and seer 'Carrier' Furnace Infinity 58MVC080-F-1-20 , Infinity Control ... A: A couple of things, furnaces are rated only in AFUE ratings. The evap coil and cond unit will give ... | |
| HVAC cool setting not turning off automatically blower and compressor keep going | 6/22/2010 |
| Q: I have a TRANE Compressor XE1000 (model no. TWR048D100A1) and XE90 Control unit. Initial problem was ... A: There was likely nothing wrong with the old stat. You have a device or wiring within the 24v ... | |
| Condisation of duct work under house in crawlspace | 6/21/2010 |
| Q: I live in a two story home with a crawl space that was built in 2007. I man who installed the ac ... A: The attic does not sweat because it is hot. The ground holds moisture and stays a pretty constant ... | |
| 3.5 ton cond. with 3 ton air hand? | 6/21/2010 |
| Q: what is the capacity of a Rheem RCBA-3765A517 air handler? It currently has a 3ton condenser unit on ... A: You can not put a bigger cond unit on a smaller evap coil. You can go the other way around by a .5 ... | |
| Paring a Heat Pump with Air Handler | 6/21/2010 |
| Q: I'm confused and get more confused when I talk to the contractors I'm considering for a new heat ... A: I do not know. I would contact Trane directly to verify this. In some sense as long as the ... | |
| Fan won't come on by itself in hot attic | 6/18/2010 |
| Q: Have zoned units in attic and downstairs. When temp in attic goes >90F unit blower fan will not come ... A: Swapping out the run cap is a bad idea, unless you verified they are of the same rating. Not all ... | |
| ac size | 6/16/2010 |
| Q: hey craig, i am collecting estimates for a heating & cooling system for my 2 story 2800 sq ft home ... A: It takes more then what you have me to determine unit tonnage requirements. House construction, ... | |
| toubleshoot | 6/16/2010 |
| Q: I installed a Payne 15seer Heatpump in April 2010, this problem started about 6 weeks ago. The ... A: When the t-stat completes is normal cycle, remove the wire from R on the back of the t-stat. Then ... | |
| A/C and dehumidifier | 6/15/2010 |
| Q: My question is on the benefit of using a dehumidifier along with an A/C. I understand that normally ... A: A dehumidifier is going to create heat. At that point the a/c is going to then run. The ... | |
| New Thermostat install question | 6/14/2010 |
| Q: Trying to replace an old mercury thermostat on my heat pump system with a HoneywellRTH3100C ... A: I am not sure why you are changing out the stat. You might actually have an issue with the unit. ... | |
| Duct less split | 6/12/2010 |
| Q: I have been working on a mitsubishi ductless split for a server room. it gives a p8 code on the ... A: The high cond head is going cause by only a few things...overcharged unit, restriction in the cond, ... | |
| refrigerant leaking from commercial HVAC | 6/12/2010 |
| Q: Craig - We are looking after our son's condo while he is deployed overseas with the Army. He has 3 ... A: There is always a concern when gas is added that there is a leak. Sometimes the leak is on the port ... | |
| Heat Pump Wiring | 6/11/2010 |
| Q: I am considering installing a Venstar/Insteon remote control thermostat system in my summer home. I ... A: The emer. heat is there to provide heating when it gets too cold outside for an air source heatpump ... | |
| AC outside Condensing unit | 6/10/2010 |
| Q: Craig, I have submitted an insurance claim on my outside ac unit. My Neighbor has 2 very annoying ... A: Well, I can tell you after the few years I have been on this site, dog pee will cause the coils to ... | |
| HVAC filter drier | 6/8/2010 |
| Q: Is the filter drier considered part of the HVAC unit? I was told last fall my unit would have to be ... A: You are being taken for a ride and you need to find a new bus. First of all, as of the first of ... | |
| Ceiling Vents Positions | 6/6/2010 |
| Q: I live in a small house (appx 1100) in the South where the summer heat and humidity can be pretty ... A: Although the size of the home will play a part in the electric bill, there are many other factors. ... | |
| coastal rated central air conditioners | 6/4/2010 |
| Q: We need to replace our apartment's 2.0 ton, roof top, central air unit on a 5 story high condo a ... A: I am not sure what coastal rated means and to what extent. Is the unit made of more stainless steel, ... | |
| thermastat wiring | 6/3/2010 |
| Q: I have a nordyne furnace model #m1mbo7oabw, in a new modular home, a carrier a/c unit came with and ... A: The furnace should have a wiring diagram inside the furnace. I did not have any luck getting a ... | |
| HVAC | 6/2/2010 |
| Q: "I have an evaporator leak from my bryant system. to me it appears to be just condensation, or so I ... A: There is always going to be water in the pan when the unit is running, granted not very much. I ... | |
| minimum distance | 6/1/2010 |
| Q: In your opinion, what is the minimum distance (in ft.)that I should have between a/c returns and ... A: As far away as you can is really the best answer. The key is not to short cycle the air. You can ... | |
| a/c | 6/1/2010 |
| Q: I've been having an ongoing problem with my condo's central a/c system so I am contacting you again ... A: The black around the grilles can be dirt. The air that comes out can be moist and it also creates ... | |
| Central air outside unit not working | 5/30/2010 |
| Q: A few days ago I was in the basement and heard a clicking noise when the air unit would turn pn It ... A: Which fan did not move? I am guessing the outdoor... It could be a fan motor, but it could also be ... | |
| air conditioners | 5/28/2010 |
| Q: can you have a two-stage air conditioner with a single stage furnace? I have two installers ... A: Yes, you can have a two stage cond. unit with a single stage furnace. I would not do it though. ... | |
| central aid | 5/27/2010 |
| Q: My air conditioning unit started making a clanking noise and continued to clank as it ran. Now, it ... A: The clanking sound could have been the sound of the fan blades hitting the unit. It could also have ... | |
| A/C | 5/26/2010 |
| Q: 1300 sq ft home, 2 ton 15 yr old unit can't maintain temp to 76*been serviced for refrigerant, ... A: You need to replace the unit. A 15 year old unit is the problem. It is not going to work to is max ... | |
| Air Conditioner | 5/25/2010 |
| Q: I had a new air conditioner installed last June. It takes the ac up to six hours to cool down from ... A: Six hours is not a long time to drop the temp in the house eight degrees. One degree or so is a ... | |
| Freon Charge Cost | 5/24/2010 |
| Q: I manage a building with 27 units. What is the average cost of charging a 5 ton unit? I believe ... A: The charge of the unit will vary with the size and length of line runs etc. A leak check should ... | |
| Ruud/Rheem 62-102637-01 Integrated Furnace Control | 5/23/2010 |
| Q: This afternoon (Saturday) my wife called me to say that the compressor of the AC wasn't running but ... A: I am not sure what the 12 blinks mean. I was not able to find anything about it. You might turn ... | |
| Ruud/Rheem 62-102637-01 Integrated Furnace Control | 5/23/2010 |
| Q: This afternoon (Saturday) my wife called me to say that the compressor of the AC wasn't running but ... A: Before replacing parts, it is reqired that you check for voltages with a meter to determine where ... | |
| need 3rd wire | 5/21/2010 |
| Q: i just had a lenox heater and air conditioner installed in my home. i had a guy that i know install ... A: I am a bit confused, because I am not sure what he means by a third wire. Most units with cooling ... | |
| coleman unit | 5/20/2010 |
| Q: My Coleman unit will be two years old this Sept.In the past two weeks my unit is not working ... A: The problem can by any number of things. To start with I hope you have been changing the filter on ... | |
| Maintenance / Cleaning - TWE040E13FA1 | 5/19/2010 |
| Q: I apologize in advane for the ignorance... As a fairly new [female] homeowner I'd like to take ... A: The indoor (evaporator) coil can be cleaned in place. Changing the filter and using a good filter ... | |
| Honeywell EMM-3 Panel | 5/19/2010 |
| Q: Somtimes one of the heating zones does not work. This morning zone 1 was not working. The panel ... A: Joe, to start off with this site DOES NOT display any email address. It does not give me your email ... | |
| Insulation in air vents | 5/17/2010 |
| Q: I recently read a post about someone else having problems with getting insulation in there air ... A: This is a something I copied off another website... "Fiber glass may cause itchiness and ... | |
| Air freezing up | 5/15/2010 |
| Q: Ok, here goes. Last summer, my central air conditioner messed up. We called a technician out and he ... A: Since the unit is freezing up, then everything is not working properly. The unit freezing up could ... | |
| A/C filter? | 5/14/2010 |
| Q: We had our A/C installed about 7 years ago and it has been working fine. The capacitor blew last ... A: judging by the black spot on the grille in the picture, I would say that is the return. I would ... | |
| Heat Pump Replacement | 5/12/2010 |
| Q: I live in northern part of Florida and I'm interested in replacing my 18 yr old heat pump system ... A: More than anything beyond brand, is the installer. A system that is not installed properly just will ... | |
| replacement of outdoor unit fan motor | 5/11/2010 |
| Q: i replaced the condenser fan motor with a universal kit that came with a two terminal capacitor but ... A: You can not replace the a dual run cap ( three terms.) with a single (two terms.). Normally, just ... | |
| leaks in concrete encased ductwork | 5/9/2010 |
| Q: Our home heating ductwork is encased in the concrete floor. For the past few years, we have had ... A: At this point the best thing to do is stick a camera down the ducts to see if you can see what is ... | |
| HVAC fan motor | 5/7/2010 |
| Q: The motor on the outside unit (ground mounted) is nosiy. I pulled it, wobbly shart, looks like ... A: The new motor must be close the old motor RPM in order for the right amount of air to move though ... | |
| My 24V transformer keeps blowing up | 5/7/2010 |
| Q: I have a Corsaire home furnace. The control board part number is Rheem 62-24268-01. A picture of ... A: The problem is going to be something that is connected to the P1 plug. Follow this link... ... | |
| gas ac unit | 5/5/2010 |
| Q: What type of coolant is used in a arkla servel gas ac unit? antifreeze like the kind used in a ... A: I have never heard nor worked on any of these types of units. Based on what I just searched, they ... | |
| CAN U HELP ME | 5/5/2010 |
| Q: Is there a way to know that my condenser or compressor I don't know the difference, is bad. My fan ... A: The condenser is the entire unit outside (unless you have a package unit). The compressor is the ... | |
| HVAC | 5/4/2010 |
| Q: my ac unit outside is OK but when the thermostat kick of the AC unit the blower not stop and ... A: The first thing to do is to check the on/auto switch and set it to auto. If already in auto, then ... | |
| ac | 5/2/2010 |
| Q: I just cranked on the air for the ist time and it runs fine but does not seem to be blowing cold ... A: Did you take a walk outside to find out if the outdoor fan and compressor is running? There can me ... | |
| heat pump | 4/29/2010 |
| Q: I thought i was set on a rheem 3 1/2 ton rpql jaz outdoor unit and rhkl varible speed indoor unit ... A: Heil is made by a company called ICP. ICP is part of Carrier. I have installed a ICP and have not ... | |
| Coil replacement | 4/26/2010 |
| Q: I currently have a Trane Split System Heat Pump (3 ½ ton 4TWR4042C1000AA), Trane XS90 and an ... A: Installing a bigger coil is not going to increase the capacity of the system. The capacity is ... | |
| damage compressor due to high voltage | 4/26/2010 |
| Q: recevd a letter from our customer regarding his burnout compressor. it was claimed that the ... A: Here in the US, the power company get be out of the norm by a given percentage, typical is 10% or so ... | |
| Gas heater vent chatter | 4/25/2010 |
| Q: Craig, I have the same exact problem as Mark asked about. I bought a brand new house last year and I ... A: There is likely a damper in the flue to prevent a back draft. It just takes a bit of time for the ... | |
| What should I buy? | 4/22/2010 |
| Q: Your Question was: We need to replace the furnace for our rental property that is 1080 sq ft. What ... A: Well, I would put all three units on the same playing field. They are all about even and more or ... | |
| Output airflow speed/velocity | 4/21/2010 |
| Q: Science project: Can you tell me roughly what the airspeed and/or velocity of the output air that ... A: It is not that simple actually. The velocity of the air depends on the amount of air and in the ... | |
| Compressor slugging | 4/21/2010 |
| Q: I just had a 5-ton SCROLL heat pump compressor, reversing valve, solenoid coil, bi-flow drier, ... A: All compressors blow out a bit of oil when they run, and the oil normally returns in time. It is a ... | |
| heat pump | 4/20/2010 |
| Q: I have a split system American Standard heat pump installed 12/08. I assumed it would work correctly ... A: The coil should defrost completely and more to less even. I have seen cases when units are made the ... | |
| SEER ratings in relation to cooling zones | 4/19/2010 |
| Q: I have 3 separate zones in my house, and I replaced the system for one zone a few months ago with a ... A: You can place any SEER rating in any zone, and in some ways is makes sense. Why spend the extra ... | |
| HVAC | 4/19/2010 |
| Q: What do you think is the average price to replace a 3.5 ton copeland AC compressor on a 13 seer ... A: The refrigerant does not have to be replaced on every compressor failure. It really depends on what ... | |
| Apartment A/C | 4/16/2010 |
| Q: I've got about a 900 sq/ft apartment that I can't seem to keep cool. I know very little about HVAC ... A: I have a feeling the word is charged, not changed. If the unit was charged, that could be a sign ... | |
| HVAC | 4/15/2010 |
| Q: we are building a new home which is 2600sq ft heating and cooling,including a bonus room with half ... A: I am not sure which is right, as I do not have the heat load calculations in front of me. The size, ... | |
| Coleman Evcon EB15B Furnace | 4/14/2010 |
| Q: I actually work for a Commercial HVAC Trane Company and none of my guys here have been able to solve ... A: You are not missing anything. The fact is, some units do not come with a filter rack built into the ... | |
| heat pump condensation pump | 4/13/2010 |
| Q: My daughter moved into a home with heat pump that has the air handling system in the crawl space. ... A: I am a bit confused on what you are trying to do here. Most, if not all, condensate pumps I deal ... | |
| replacing central a/c unit | 4/10/2010 |
| Q: I am in the process of getting quotes to replace my 13 year old Rheem a/c system in my house. I am ... A: Picking from the list you have given, I would put Amana at the bottom of my list. Trane and ... | |
| AC Thermostat failing | 4/9/2010 |
| Q: OK My question is, last evening our son set the Thermostat to 65 and when I altered it back to 72 ... A: The description does not give me a clear answer on what was running and for how long. The problem ... | |
| ac vent | 4/9/2010 |
| Q: I have a double wide mobile home and on one side of the home there is little to no air output while ... A: Just because it can not be seen, does not mean ducts have come undone. The flex duct has two parts, ... | |
| Connecting Lower BTU input higher a MUST? | 4/8/2010 |
| Q: My hot water tank was leaking (old install in 86), & the Water tank rental company came to look. ... A: Well, anytime something major gets replaced in a home and a permit is pulled it has to be brought up ... | |
| Heat pump / AC trips circuit breaker | 4/7/2010 |
| Q: I have a Ruud UPKB-024JAZ heat pump. During the winter it developed a buzzing sound whenever the ... A: I am assuming the breaker you are talking about is the main breaker to the cond. unit. This can be ... | |
| Room above garage | 4/6/2010 |
| Q: I have a newly built home. My office is in the bedroom which is situated above the garage. The ... A: The more you insulate around a conditioned area, the better off you are going to be. Since the ... | |
| swamp cooler | 4/4/2010 |
| Q: I have a Champion Evaporative Cooler model # WC50 that is 1 year old and used for 1 season. At the ... A: I viewed some info on the unit. The first thing that comes to mind is a wiring issue. With 120v it ... | |
| Bathroom Fan ventilation | 4/4/2010 |
| Q: Craig. We just moved into our home and have problems with wind noise in the bathroom fan. I took ... A: Using a utility knife, you can get to the heads of the screws. I have done it before. I am not ... | |
| AC Replacement Cost | 4/3/2010 |
| Q: Recent widowed mother in-law was quoted $10K for a replacement 5 Ton AC/Furnace/duct work in her 16 ... A: Considering some of the pricing I have been seeing, it does not seem unreal. Considering I do not ... | |
| brazing lineset and startup | 4/3/2010 |
| Q: I just bought a Goodman gas furnace with a 13 seer ac unit with the new 410 gas. Getting ready to ... A: You can use whatever gas you want as long as it will get it hot enough to make the joint. You need ... | |
| heater | 4/2/2010 |
| Q: I have a Carrier weather maker 9200/gas furnace. When it's turned "on", the fan starts and stops ... A: There is definitely a motor in there turning the fan to move the air though the furnace and into the ... | |
| luxaire propane heater | 3/31/2010 |
| Q: My heater status light is blinking 3 times. It wont ignite the fans all work though. A: I copied this from a luxaire manual. You did not give me the model number, but my guess they are ... | |
| Central Air Unit spewed Freon | 3/29/2010 |
| Q: My 1100 sq ft. home and central air are 13 years old. Never had issues since it was built. Until ... A: Well, I hate to have bad news, but you are going to need a new unit. The compressor is done, and I ... | |
| window a/c unit exhausted to garage | 3/28/2010 |
| Q: So this is an odd situation but... My house has a garage that was once a carport. It has a dirt ... A: The unit is going to produce a lot of heat. Opening the door once a day is not going to be enough ... | |
| Air Conditioning unit is will not shut off | 3/28/2010 |
| Q: My Armstrong Model # PGE10A-3 (Gas Heat/Electric Cooling Packaged Unit) air/heat conditioning unit ... A: I understand the lack of knowledge on your part to explain the problem. There can also be a lack of ... | |
| Burndt fan control board | 3/27/2010 |
| Q: Last summer my central AC was blowing air but not chilled and had a new AC installed.He told me that ... A: Electrical problems can be hard to determine. There is not always a clear cut reason for things to ... | |
| Air Conditioning unit is will not shut off | 3/26/2010 |
| Q: My Armstrong Model # PGE10A-3 (Gas Heat/Electric Cooling Packaged Unit) air/heat conditioning unit ... A: I do not see how holes in the heat exchanger will cause the fan to keep running. That does not make ... | |
| Relation between Heat/Cooling load and Heat loss/Gain | 3/26/2010 |
| Q: Sir, While reading HVAC books i've come across the term heat loss and heat gain; I got confused ... A: Heat loss/gain are the same thing. In simple terms, it just means how quickly heat will transfer ... | |
| Air Conditioning unit is will not shut off | 3/26/2010 |
| Q: My Armstrong Model # PGE10A-3 (Gas Heat/Electric Cooling Packaged Unit) air/heat conditioning unit ... A: I need to ask a couple of questions...Is the compressor and fan running outside? I am guessing the ... | |
| Heat Pump | 3/24/2010 |
| Q: May I ask 2 questions ? (1) My neighbor is having a new heat pump installed, and the contractor ... A: You are only allowed to ask one question at a time here...:P I am not quite sure what it meant by ... | |
| coleman gas furnace | 3/22/2010 |
| Q: A Coleman model# DGAT056BDE, the blower will turn back on after it cycles. then run until its ... A: Considering what you have done already, I would be checking the thermostat and the wiring from the ... | |
| Thermostat installation problem... | 3/21/2010 |
| Q: I am writing you today to see if you could help me with an electrical problem I am having with ... A: From the way the unit is wired, you have a heatpump. You need to make sure the thermostat is set up ... | |
| Quatro Tru Blue 90 furnace | 3/10/2010 |
| Q: I have a Quatro Tru Blue 90 furnace,I shut it down for a few monthes because I was out of town. ... A: I am going to guess you are using the heat. High eff. units have a drain line to remove the ... | |
| noisy heat pump | 3/6/2010 |
| Q: Sir,I have a Trane XE1100 heat pump.I recently noticed the exhaust fan making a loud rumbling noise ... A: From your description of the problem the bearings/bushings in the motor are bad. The only way to ... | |
| gas like fumes in our home | 3/5/2010 |
| Q: Almost everyone who enters our home comments on the awful gas like smell. I say 'gas like' because ... A: Propane has an odor to it that can not be missed. I am not sure what to tell you, but if you smell ... | |
| ritetemp 6036 thermostat won't work in auto position | 3/4/2010 |
| Q: I recently installed a rite-temp model 6036 and only cools when is in on position, it does not work ... A: Not all units use the fan signal when a t-stat calls for cooling. Some units control board controls ... | |
| Ruud heat pump 13 seer upne-060jaz | 3/3/2010 |
| Q: outside unit is not operating. Auxiliary heat comes on but not normal heat. less than 2 years old A: First thing it to check the breaker and/or fuses that supply power to the unit. If all that is ok, ... | |
| Carrier Roof top heater failure | 3/2/2010 |
| Q: The blower motor does not work when heat is turn on. The blower motor works when the air ... A: As things has changed over the years, it is hard to say what it could be. It is something within ... | |
| Heater Blower Motor | 2/25/2010 |
| Q: i'm replacing my Forced Air blower motor. My dayton 4 speed motor has white, black, red, ... A: Not all motors use the same wiring colors. All motors have the wiring diagram on the label that is ... | |
| Heat Pump | 2/23/2010 |
| Q: I have a older house 1918, that I am trying to update for my retirement home. The present heating ... A: The amount of ducts does not matter as to the size of the ducts. It is better to use the less ... | |
| Heating a small room in a garage | 2/18/2010 |
| Q: I have just had a 1.5 ton Goodman unit put in a detached garage that i have just finished. It is ... A: It seems to me the air flow needs to be balanced. By cutting down some of the air to one part and ... | |
| Heat Pump | 2/17/2010 |
| Q: I have a 2002 Payne heat pump. It does not seem to be cycling correctly. I heat a heating and ... A: The colder it gets outside, the less effective the heatpump becomes. The cool air is because the ... | |
| Blower in HVAC not working | 2/16/2010 |
| Q: I have a Carrier Model # FC4BNF048, It's an all electric heat pump system. Last night the heat quit ... A: You started in the wrong direction. The transformer likely did not cause the fuse to blow. ... | |
| New to home, need help with HVAC system | 2/14/2010 |
| Q: We have recently purchased a home in Denver that is 1700 sf with 3 three stories, plus basement and ... A: It is quite simple. The cooler or hotter you set the unit will determine how long it will run. In ... | |
| home heat, lack of | 2/14/2010 |
| Q: I have a rheem 14 seer model rapa-042jaz home unit. its about 13yrs oldIts the middle of the night ... A: It is possible that the t-stat is faulty, but t-stats do not fail all that often. Since it does ... | |
| heat pump compressor won't start | 2/13/2010 |
| Q: I have a Goodman cpkj36-1ab heatpump.(I have 2 of these units side by side for upstairs and ... A: The "start assist" is a start cap with relay to give the compressor a boost to get started. There ... | |
| Fan motor will stop working | 2/12/2010 |
| Q: My downstairs air handler fan motor will cut out after being on for a while. The heat pump will be ... A: It is possible for the run cap to be going bad. A bad run cap will cause the motor to heat up. ... | |
| Heat Pump Blowing hot air | 2/11/2010 |
| Q: The way I understand a heat pump function, it first tries to draw heat from ambient temperature ... A: You are kinda right in your description, but have some work to do on it. The a "heatpump" works the ... | |
| blower motor | 2/10/2010 |
| Q: How u doing,i replace my blower motor from my gas/ac air unit.The motor that i got dont have the ... A: I hate to give you the bad news, but you may have already ruined that motor. Wiring it up like you ... | |
| HVAC | 2/10/2010 |
| Q: I am shopping for a new split system high efficiency electric/propane HVAC system. I am researching ... A: I have never heard of the brand, and I can not confirm if it is a Goodman. It is always more ... | |
| Not enough heat on 3rd floor | 2/5/2010 |
| Q: "We have a 3 story ranch. The first floor has a wood burning stove, which heats the first floor ... A: You have to determine what the voltage and amps are for the fan. There are "line voltage ... | |
| proper unit size | 2/4/2010 |
| Q: If I own a 2400 foot ranch-style home, what tonnage unit (gas pack) will I need to properly heat and ... A: The sqft of a home or space is just not enough to size a unit. You have to have a heat load ... | |
| flame sensor | 2/3/2010 |
| Q: I have a 2 family home where each unit has an identical Amana forced hot air furnace, one in the ... A: It is hard to say why one over the other. It could be because it is in the attic. They flame may ... | |
| ge zonelines | 2/2/2010 |
| Q: ihave 2 ge zonlines model az25e12d3bm1 and model az22e15d38bm2 they don't put out hot heat like ... A: Determine the size of the heat strips (i believe that is what you have) and take an amp draw ... | |
| Carrier package funance | 2/1/2010 |
| Q: I am very experienced in trouble shooting a/c and heating units but this one has me stumped. On a ... A: The colder weather could cause moisture to build up in the pressure switch tube to the inducer fan. ... | |
| 13 SEER AH and 16 SEER Heat Pump | 2/1/2010 |
| Q: I just recently discovered that I have a 13 SEER Goodman Air Handler and a 16 SEER Amana Heat Pump. ... A: Amana and Goodman are one in the same with different labels. As long as the A/H and cond. unit are ... | |
| Air in Lines Follow Up | 1/31/2010 |
| Q: I have a New Yorker FR 147K BTU oil fired boiler with a Beckett burner installed I think by the ... A: The check can be just about anywhere. It can be in or out of the tank. The check is likely ... | |
| heater and compressor both come on | 1/30/2010 |
| Q: Recently when my furnace kicks on the first thing that happens is the compressor outside comes on ... A: To get heat for the mean time, you should be able to turn the breaker off to the outside unit to ... | |
| 2nd floor is cold, not enough air flow | 1/28/2010 |
| Q: All 3 bedrooms located on the 2nd floor are cold in winter hot in the summer. There is 1 vent and 1 ... A: Heat load is the amount of heating or cooling is required to heat/cool a given space. Each room or ... | |
| 2nd floor is cold, not enough air flow | 1/28/2010 |
| Q: All 3 bedrooms located on the 2nd floor are cold in winter hot in the summer. There is 1 vent and 1 ... A: I am not really able to help you sight unseen. The tonnage of the unit and the heat load for the ... | |
| Trane condenser | 1/27/2010 |
| Q: Trane/Am Standare m#TTA12B300BA, S#KO9198950 2 compressor system, Y1 usually working, cool lately, ... A: A drier can last for years in a system that is closed and clean. When there are failures that is ... | |
| Heat pump | 1/26/2010 |
| Q: I am a General Contractor and my heat pump stopped working, I went to turn it on one morning and no ... A: In order to determine what the problem is, you are going to have to start checking for voltage with ... | |
| Payne furnace does not self ignite | 1/26/2010 |
| Q: I have a older Payne furnace that came with our house, 110,000 btu unit with model number ... A: A furnace should never be lit in any way other then the normal operating way!!!!! You are at great ... | |
| Single-Stage vs. 2-Stage AC | 1/25/2010 |
| Q: I am getting ready to replace a 2.5 ton, 11 SEER, 15-year-old, single-stage AC in my 985 SF home ... A: It does not seem right to me that you only have two options due to the size of the closet. There ... | |
| No power to thermostat | 1/24/2010 |
| Q: I was changing out a mechanical thermostat to a Honeywell RTH7500 and trouble shooting with ... A: The 24v control power is supplied from a transformer in the air handler, not the cond. unit. If you ... | |
| Payne outdoor unit | 1/23/2010 |
| Q: I have a Payne heat pump system. I am running the system on Auto heat. The air handler is coming ... A: It can be a number of things. Both the high and low voltage circuits need to be checked. Some ... | |
| HEIL furnace hum/buzz | 1/22/2010 |
| Q: Our HEIL furnace was new in 2005, but was made in 10/04. It is a 75,000 btu unit. We hear a ... A: I believe the item are are talking about the run cap. Looks more like a battery. There is nothing ... | |
| air handler switching ground | 1/20/2010 |
| Q: i have a air handler that sends red to common and blue is 24V hot (was and is hooked to common on ... A: Personally, I think the diagram is not correct. Red is never grounded and I have never seen it ... | |
| HVAC | 1/20/2010 |
| Q: We noticed some moisture forming on 2 parts of the exhaust pipe (through which the carbon monoxide ... A: I have never seen pvc fittings glued on the inside. They are always on the outside of the pipe. ... | |
| Propane as a Choice? | 1/20/2010 |
| Q: I smiled when I read you may be the only HAVC guy who does not know oil! Funny, I have an oil ... A: Well, I am not John, but I might have some insight. You can figure out how much each BTU costs with ... | |
| Furnace / Generator | 1/19/2010 |
| Q: I have a generator for when the power goes out. Heres my problem, The generator would run the ... A: Are both of the furnaces the same voltage? Are you connecting the proper voltage output from the ... | |
| Blower fan won't shut off | 1/19/2010 |
| Q: My Climate Master geothermal fan will not shut off. It will reach temperature and then keep on ... A: I had to think about this one. I have come up with a logical problem, but it may not be the ... | |
| air handler switching ground | 1/18/2010 |
| Q: i have a air handler that sends red to common and blue is 24V hot (was and is hooked to common on ... A: The typical air handler uses ground for the neutral. My guess is the unit has been working, so I am ... | |
| Fixing my Ac unit | 1/17/2010 |
| Q: Ok so i replaced the blower cage...it had come busted off the hub....then about 2 days later i ... A: The two problems on not related, but the control wiring does go though the air handler. You should ... | |
| Commercial RTU in a residential area | 1/16/2010 |
| Q: I am a home owner in Canada (cold temperatures). My neighbor installed a commercial RTU HVAC on his ... A: The some differences are size, noise, fresh air capacity and power. Residential units typically ... | |
| Need help heating home | 1/16/2010 |
| Q: I currently live in NW Florida, in an open plan 1 story house with a vaulted ceiling. My thermostat ... A: You have a problem most people on the south have...extreme cold weather and heatpumps. Heatpumps ... | |
| insulating an HVAC vent pipe | 1/15/2010 |
| Q: I am trying to help a property owner cut down on ice build up. They have 8 furnaces in their attic ... A: The only way to really reduce the stack temp is to get a new high efficiency unit. The newer high ... | |
| inducer motor assembly. | 1/14/2010 |
| Q: I am trying to find the above mentioned part /rhemm gaspak model RRGG10E42JKR serial AYA4478 A HA A ... A: The inducer fan forces air into the burn chamber for more heat. It works much the way a turbo ... | |
| furnace does not blow warm air | 1/14/2010 |
| Q: i have a lennox g 24 series gas furnace,the furnace runs all the time when its cold, the gas burner ... A: The problem might be a bad control board. Many of the units will only relight a couple of times ... | |
| water leaking from airconditioning | 1/14/2010 |
| Q: We have seperate heating and airconditioning units. During the winter, we close all the vents in the ... A: The ducts in the attic are getting cold enough to have moisture, from inside the house, condense in ... | |
| thermidistat | 1/13/2010 |
| Q: Furnace seems to have checked out okay last night by HVAC rep. Thermidistat "may" be the problem ... A: Some of the units require a specific thermostat to work with the unit. Without a model number of ... | |
| Thermostat | 1/11/2010 |
| Q: I Have a Gas forced air furnace and forced airconditioning. I installed a honeywell RTH221B ... A: The fan speed is controlled inside the unit and not at the t-stat. This is the case for both the ... | |
| #2 heating oil alternatives | 1/11/2010 |
| Q: I ran out and suppliers were out too. One told me to use diesel and I did some research and tried it ... A: #2 Diesel is the same fuel burned in trucks and cars. The fuel sold for furnaces can be dirtier, so ... | |
| Armstrong 5-ton package Unit | 1/9/2010 |
| Q: Sir I have a A\S Model # PGE10B60D125A-2A ( gas unit ) . The unit on Heat, the burners will come on ... A: You need to determine what is causing the unit to shut down the flames. It could be anything from a ... | |
| HVAC | 1/8/2010 |
| Q: I had recent maintenance 10/09 and was told 2lb low and added freon and possible leak. 3 days later ... A: The schrader can start to leak just by connecting a hose. It has a rubber seal, that once moves, ... | |
| Replacing AC - good deal or snake oil? | 1/7/2010 |
| Q: Current unit 39 years old 1.5 tons, blower went out over the holidays (old unit couldn't cool ... A: The cost to replace units vary greatly. The type, location of the unit, access, ductwork, line ... | |
| Tempstar heatpump | 1/6/2010 |
| Q: I have a 13 year old Temp star heatpump electric .I live in Ky.We are having 20 and below temps ... A: The first thing that comes to mind for me is you need a hard start kit on the compressor. Without me ... | |
| Lennox G43UF furnace | 1/6/2010 |
| Q: Have zero humidity in house after install...where is the adjustment...pump on side of furnace taking ... A: There is no adjustment. The water that is being pumped is coming from the combustion cycle. ... | |
| York fans blowing | 12/19/2009 |
| Q: Contractor installed a York D1NZ042N09006A last summer and the A/C worked great. However he never ... A: You can use the old stat for your unit. You do not have to use all of the connections and you could ... | |
| Aquastst/heat issue | 12/18/2009 |
| Q: we hav a oil fired furnace in our basement. This unit provides our hot water as well as runs supply ... A: The setting for any stat should be whatever room temp you want to keep. If the sensor is in the ... | |
| Air in Lines | 12/18/2009 |
| Q: I have a New Yorker FR 147K BTU oil fired boiler with a Beckett burner installed I think by the ... A: Oil is one of my weakest areas for heating. We do not use much oil down south for heating. I am ... | |
| Chillers | 12/18/2009 |
| Q: What is the difference between low pressure & high pressure chillers,? What is the importance of ... A: What is the difference between low pressure & high pressure chillers,? Type of refrigerant used. ... | |
| BTU per Square foot | 12/17/2009 |
| Q: I have a 16 year old furnance that needs replaced, it is 100,000 btu. I got an estimate to replace ... A: There are rules of thumbs, but it really requires an in home heat load calc. to determine what you ... | |
| (Nordyne) Philco G6RA 80+ Upflow/Horizontal Forced Air Gas Furnace | 12/17/2009 |
| Q: I purchased the above model back in 2002 and since then I have had to replace the 3 amp fuse (1 week ... A: Roll out and flame sensor are two different things. Roll out is caused when the flames are burning ... | |
| Heating Strip | 12/16/2009 |
| Q: I have a central heating system that was installed just under 2 years ago. We quit getting heat last ... A: Some units come with or can be bought extra, labor warranty. Make sure the labor is not covered. I ... | |
| Trane Heat pump | 12/15/2009 |
| Q: I have a XE 1000 Trane 10 seer heat pump compressor and a Gibson air handler ARUF 182416 AB. I had ... A: The defrost cycle will only kick in if the cond. unit is running (compressor). The defrost board, ... | |
| Atlas Furnace Heater ? | 12/15/2009 |
| Q: Penninsula Heating diagnosed my Atlas heating furnace to have a cracked heating exchange. The ... A: There is 3.414 btu's per watt of resistive heat load. You are looking about a 20kw elect heat strip. ... | |
| Nordyne Electric Furnace Problem | 12/15/2009 |
| Q: Occasionally I notice that the blower on my furnace has been on awhile and there is no warm air ... A: The unit would appear to be tripping on a safety and turning the unit on and off resets the unit. ... | |
| Bryant furnace not warming past 60. | 12/15/2009 |
| Q: I have a Bryant model 376CAV gas furnace. When I call for heat it will run up to no more than 60 ... A: Then I would guess it is not the motor. There is also a pressure switch that is connect with the ... | |
| Placement of thermostat in new home | 12/14/2009 |
| Q: We moved into our newly constructed townhouse about 1-1/2 years ago and have been experiencing ... A: I have never heard of the term "pants", rather I consider your system to be a "zone" system. I am ... | |
| Trane Heat pump | 12/14/2009 |
| Q: I have a XE 1000 Trane 10 seer heat pump compressor and a Gibson air handler ARUF 182416 AB. I had ... A: The icing is normal, and has it gets colder and wetter, the ice builds quicker. The unit has a ... | |
| heat pump/air handler cycling | 12/14/2009 |
| Q: I have a new Trane heat pump and air handler with 15kw heat strips. 3.5 ton. Variable speed fan, ... A: To the best of my knowlege, the indoor fan should not be turning off. Anything is possible with the ... | |
| Bryant furnace not warming past 60. | 12/13/2009 |
| Q: I have a Bryant model 376CAV gas furnace. When I call for heat it will run up to no more than 60 ... A: It is very much possible the inducer fan motor is getting hot and shutting off. The motor likely ... | |
| heat pump runs all the time | 12/13/2009 |
| Q: My problem is on a 3.5 ton r410 heat pump janitrol 2 yrs old,House is 2100 sq ft 9ft ceilings ... A: To start with, heating with electric is always more expensive then cooling. Is has to do with the ... | |
| small hermetic compressor | 12/12/2009 |
| Q: what are the best methods of starting a stuck 120V compressor? Putting a capacitor on the run term. ... A: A hard start kit is the only way. Using 220v will create an almost immediate melt down. The ... | |
| Heater in the attic, floors are cold | 12/12/2009 |
| Q: We installed a new heater in the attic (for space reasons). The floors on the first floor are cold, ... A: There is normally a temp difference between floors when there is one unit. In order to fix the air ... | |
| GMPN100-4 mysterious water leak | 12/12/2009 |
| Q: I have a GMPN110-4 made in 1993. 20 months ago, noticed water leaking on floor, called technician, ... A: The water is actually a by product of combustion. There should be a drain tube to remove the water ... | |
| HVAC Unit Location | 12/9/2009 |
| Q: We are having a ranch built in DE and the HVAC unit was to be in the attic. They are now ... A: I feel the most important thing about location is service. If the unit is hard to get to, it will ... | |
| line voltage thermostat | 12/9/2009 |
| Q: The line voltage thermostats in question control ceiling furnaces in an industrial environment. I ... A: Instead of 24v, you would be better off with line voltage digital t-stats. They can be bought ... | |
| furnace condensation pump and overflow | 12/9/2009 |
| Q: I have recently had a high efficiency furnace installed in my home. Outside of the furnace is a ... A: Some condensate pumps come with a safety switch. The switch can be unit to shut down the system if ... | |
| strip heat | 12/8/2009 |
| Q: i have an air handler believed to be GE in a condo located in the ceiling directly behind a panel ... A: The amp draw of the heater is based on the rated kw at the rated voltage. You have to know what the ... | |
| heating not kicking on | 12/7/2009 |
| Q: Our heater isn't working. According to our home paperwork we have a Goodman model #PHK030-1, 2 1/2 ... A: I am concerned that something is not quite right. The goodman model number is indeed a heatpump. ... | |
| strip heat | 12/7/2009 |
| Q: i have an air handler believed to be GE in a condo located in the ceiling directly behind a panel ... A: You can check to see if the strips are open or grounded with a ohm meter. With the strips powered ... | |
| Pressure switch | 12/7/2009 |
| Q: Hey how it going i have a simple question i have an york affinty unit 48,000 btu and the pressure ... A: The simple question is not a simple solution. I am going to bet you do not have the proper tools to ... | |
| combustion air, maybe? | 12/7/2009 |
| Q: Along with the two pipes going to our heater, there is a third insulated pipe going to the return ... A: The two "pipes" going to the furnace should be an exhaust and fresh air. The combustion part of the ... | |
| heating not kicking on | 12/6/2009 |
| Q: Our heater isn't working. According to our home paperwork we have a Goodman model #PHK030-1, 2 1/2 ... A: To start with, I looked up the t-stat and it will work for a heatpump. At this point, I need to ... | |
| rheem a/c | 12/6/2009 |
| Q: i had a new 2.5 ton 13 seer rheem condenser (RAND-030JAZ) and handler installed in august of 07. ... A: Does the air handler have a float switch in the drain line? The float can be connect to turn off ... | |
| outdoor wood furnace electrical | 12/6/2009 |
| Q: I have purchased an outside Shaver wood furnace. I need to hook up the 110 volt water pump to my ... A: Since you have two different voltages, you will have to use a contactor to turn things on and off. ... | |
| Air Ducts in slab foundation | 12/6/2009 |
| Q: I have a home where the air ducts to the HVAC are installed in the slab foundation. (not under). ... A: You can call a plumbing contractor out to run a camera into the ducts to find out what is happening ... | |
| Intermittent or no defrost | 12/5/2009 |
| Q: I have a Trane Heat Pump Model 2TWB0048A1000AB Manf date 01/2004. It will not defrost when coils ... A: The frost is normal for a heatpump. The rate to which the ice forms has to do with the outdoor temp ... | |
| price and quality comparison | 12/5/2009 |
| Q: For our church: We need to replace a 3 ton Sears unity that has been in operation for about 30 ... A: Most units rate somewhere about the same. As with anything, many will tell you one brand is better ... | |
| HVAC | 12/4/2009 |
| Q: I had recent maintenance 10/09 and was told 2lb low and added freon and possible leak. 3 days later ... A: To start with, R-22 is not obsolete. (http://www.epa.gov/Ozone/title6/phaseout/22phaseout.html) New ... | |
| ch/a Heil 6yrs old | 12/4/2009 |
| Q: My unit has started pulling power from other sources in my home.- lights, fans etc.. It is making a ... A: The problem you describe sounds like a wiring problem in the house. It could be a loose connection ... | |
| Heat pump w/aux heat | 12/4/2009 |
| Q: I have a air conditioner/Heat pump with aux heat. Recently it stopped working. No warning signs for ... A: I am a bit confused. You stated the new thermostat will not work with our system. Are you still ... | |
| My grandmother hvac unit wont light | 12/4/2009 |
| Q: My name is Josh Schecter. I am an electrician and I am trying to work on my poor grandmothers hvac ... A: The issue can be anything from the ignitor to a safeties that has the unit locked out. There ought ... | |
| LG mini split, 12,000btu | 12/3/2009 |
| Q: I have been told that placing a mini split too close to the ceiling causes them to freeze up. I ... A: If the directions are followed for installing the unit, then freezing up should not be an issue. ... | |
| ch/a | 12/3/2009 |
| Q: My unit has started pulling power from other sources in my home.- lights, fans etc.. It is making a ... A: I am guessing the lights are dimming and the fans are slowing? Do you notice the problem when you ... | |
| No Warm Air Blowing | 12/3/2009 |
| Q: I have a York 12 seer split system unit(2003). The air conditioning works fine but when I turned the ... A: It can be one of many things. Sequencer, relays, contactor, control board, bad heat strips. If ... | |
| moving existing HVAC unit | 12/2/2009 |
| Q: My wife and I are considering purchasing a home. The basement of the home is mostly finished. ... A: It is nearly impossible to price things out site unseen. Everything has to be moved. The power, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| "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 ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| "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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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". ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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? ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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. ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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, ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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. ... | |
| 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 ... | |
| 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. ... | |
| 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. ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| 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 ... | |
| Furnace flow of air | 11/13/2008 |
| Q: My return duct seems smaller than the output duct. How is this affecting my cycles/ gas ... < | |