You are here:

Heating, Air Conditioning, Fridge, HVAC/Questions Answered by Expert Jim Barnhart

SubjectDate Asked
Need help on heater2/11/2012
  Q: I have a Holly brand forced-air heater in a closet-type space. There is just a little flame at the ...
  A: Dev, You need to check your 24 volt control circuit? Start with the thermostat, take the R and W ...
Need help on heater2/10/2012
  Q: I have a Holly brand forced-air heater in a closet-type space. There is just a little flame at the ...
  A: Dev, If you have an older forced air furnace that has a standing pilot? It sounds like it needs a ...
heater burners dont kick in2/5/2012
  Q: i have a heil heating unit that the pilot light comes on but the burners dont. ive clean the burners ...
  A: Henry, I'm not sure what type pilot you have? When the spark lights the pilot gas and makes a flame ...
AC dripping noise1/27/2012
  Q: Yes, it is January, but this is Texas, and I'm running the A/C... Problem is that after the AC ...
  A: Fran, The larger of the two refrigeration lines that run from the condensing unit outside up to ...
AC dripping noise1/23/2012
  Q: Yes, it is January, but this is Texas, and I'm running the A/C... Problem is that after the AC ...
  A: Fran, I'm not sure exactly what you have for heating and air conditioning? With refrigerated air ...
furnace humidifiers1/22/2012
  Q: I always read recommended indoor humidity is 35-45%. Yet on the furnace humidifier, they tell you ...
  A: Gail, Any time your running something warm hot in the house the humidity is going to dry out. ...
Heating1/19/2012
  Q: Which is more efficient? Setting the thermostat at a maintained temperature all the time or ...
  A: Kim, There are a lot of variables. If your talking about turning the thermostat down/off for 8/10 ...
drain for condensing furnace1/15/2012
  Q: The furnace repairman replaced the inducer fan on my Lennox G26 condensing furnace. The flue ...
  A: Ed, I never had much to do with Lennox products, You had to belong to the good old boys club to ...
Attic Condensation1/13/2012
  Q: Jim, This has been an issue for me going on a year, I hope you can help. I have an 80 efficiency ...
  A: Sean, The reason I asked about a "Carbon Monoxide Alarm" Was because a furnace or water heater or ...
Attic Condensation1/12/2012
  Q: Jim, This has been an issue for me going on a year, I hope you can help. I have an 80 efficiency ...
  A: Sean, There are numerous scenarios that could cause the problem that you describe. I got one ...
HVAC fan false start1/11/2012
  Q: The system is 10 years old and recently I noticed the fan randomly started for 2~3 minutes every a ...
  A: Hugo, I don't know exactly what your calling "furnace"? A gas forced air furnace, A heat pump or ...
Heatpump Troubleshooting1/9/2012
  Q: Heil Heatpump Model No. CH3042VKB2 867.801051 A few days ago I noticed the outside unit had frozen. ...
  A: Ed, I don't have anything to reference your defrost control? Defrost controls can be ever changing ...
Compatible Thermostat1/4/2012
  Q: I run an apartment complex. Several years ago we updated to central heat and air. The thermostats ...
  A: Heather, I'm not sure what your "central heat and air" is exactly? Individual units for each ...
humidifiers12/30/2011
  Q: I read an earlier question regarding a furnace mounted humidifier and have decided based on your ...
  A: Stacey, If your upstairs is open to the down stairs then the humidity should be the same throughout. ...
Number of BTU's12/28/2011
  Q: I am renovating my 1911 home, basically gutting it, removing the old gravity drain furnace and ...
  A: Linda, There is a lot more involved in sizing a furnace then square feet of the home. It all depends ...
Split heat pump12/23/2011
  Q: The split heat pump was heating fine yesterday and all of a sudden, it stopped heating. the ...
  A: Jessi, The Aux. heat is not part of the heat pumps operation. You can turn the heat pump off and ...
Gaffers & Sattlers HVAC12/21/2011
  Q: I bought condo with the following HVAC equipment: Gaffer and Sattler Central air Evaporator Blower ...
  A: Dan, Model numbers from heating and cooling equipment don't mean anything unless you have a library ...
Gas Furnace Thermostat tunrns off for 60 sec12/19/2011
  Q: We have a Payne Model PG8JAA/MAA gas furnace. Recently the thermostat (Venstar digital) would go ...
  A: Everett, There are so many different types of thermostats out in the country I have no idea what ...
Armstrong split system heat pump12/19/2011
  Q: I bought this heat pump in 2009 and have had problems ever since. When very cold outside, my heat ...
  A: Susie, I don't know what your rates are for electricity and propane in Canada where you live. You ...
funace Janitrol GMP N080-412/18/2011
  Q: furnace blower comes on but furnace wont light. the led on control panel is flashing three times. ...
  A: Mark, There is a legend stuck on the furnace close to the led that tells what three flashes means ...
pilot burner and igniter assembly kit12/16/2011
  Q: Barnhart, I have an attic Magic Chef central heater model EG83-125D2C4-1 that needs to have the ...
  A: Al, When a furnace manufacture decides to run off a few hundred or thousand furnace models such as ...
pilot burner and igniter assembly kit12/16/2011
  Q: Barnhart, I have an attic Magic Chef central heater model EG83-125D2C4-1 that needs to have the ...
  A: Al, It's not likely that you can find a store that sells furnace parts to the general public. You ...
furnace12/15/2011
  Q: My two story house is 2600 sqft, it does not get warm enough or cool enough with the 2 1/2 ton unit ...
  A: Tony Square footage is just a small part of things to consider when sizing a heating and cooling ...
Gaffers and Sattler Forced Air heater12/11/2011
  Q: Model S 80 FEF Thermostat seems to work fine except only the gas comes on after a delay when ...
  A: Barry, I think your furnace is some where around 45 years old? I have no idea which type gas valve ...
Residential Central A/C tubes12/11/2011
  Q: I'm in FL and my question is about residential central A/C, the blower unit that's inside the house ...
  A: Rick, Air conditioning systems don't use up the freon, If your system is low on freon it's because ...
Residential Central A/C tubes12/10/2011
  Q: I'm in FL and my question is about residential central A/C, the blower unit that's inside the house ...
  A: Rick, If you have an air conditioning only unit, when the system is on and the thermostat is calling ...
COLD AIR12/9/2011
  Q: I recently purchased a house with a late 80's YORK heat pump and furnace. Our thermostat is ...
  A: Teresa, I'm not sure what you have? A heat pump is an air conditioner(outside condensing unit) that ...
General HVAC12/5/2011
  Q: I have three questions for you. 1.) How can I tell if my supply and return are working properly. I ...
  A: Eric, I don't know what your seeing on the home shows but every grill register or diffuser in your ...
Heating System - Trane - Gas - Electronic Thermostat12/2/2011
  Q: I currently have a Trane Gas Heater. Don't know exact model number. About 4 years ago replaced the ...
  A: Bill, The thermostat is just a switch that turns the heat on and off. The red wire is the 24 volt ...
Rheem combo outside furnice/air conditioner12/1/2011
  Q: All that you said should happen does. However after a few minutes the flame from one of the burners ...
  A: Ryanm, I,'m sorry but I don't know what the "fire safety switch" is? I'm assuming that the "little ...
Rheem combo outside furnice/air conditioner12/1/2011
  Q: Model #: RRKA-A030JK10E Serial #: 1R5538ADAAF400111834 The issue is the furnace blows cold air. ...
  A: Ryan, Your question is a bit confusing, this is the way it should work. When the thermostat calls ...
Heating System - Trane - Gas - Electronic Thermostat12/1/2011
  Q: I currently have a Trane Gas Heater. Don't know exact model number. About 4 years ago replaced the ...
  A: Bill, Take the wires loose from the thermostat, "R" post and "W" post, twist the wires together, if ...
American Standard Freedom 80 Furnace12/1/2011
  Q: I have an American Standard Freedom 80, 2 Stage Furnace.. The problem I am having is: The ...
  A: Amber, The problem is not the thermostat. When the igniter glows the gas valve should open providing ...
furnace cyles several time before reaching temperature11/30/2011
  Q: Jim I have a Carrier furnace approx. 25 years old. The problem I am having is when the furnace ...
  A: Kevin, I recommend that you use a cheap throwaway filter, a fiberglass filter that costs about one $ ...
Rheem combo outside furnice/air conditioner11/30/2011
  Q: Model #: RRKA-A030JK10E Serial #: 1R5538ADAAF400111834 The issue is the furnace blows cold air. ...
  A: Ryan, I don't have reference material for researching the hundreds of different types HVAC unit's ...
furnace cyles several time before reaching temperature11/29/2011
  Q: Jim I have a Carrier furnace approx. 25 years old. The problem I am having is when the furnace ...
  A: Kevin, It sounds like a limit problem? The furnace temperature gets hot and the control circuit ...
furnace cyles several time before reaching temperature11/29/2011
  Q: Jim I have a Carrier furnace approx. 25 years old. The problem I am having is when the furnace ...
  A: Kevin, I assume a cycle on your furnace is, Thermostat calls for heat. Inducer starts and runs. ...
Supply & Return Duct Sizing11/27/2011
  Q: I have 2 rooms that are supplied w/ 1 large duct. The end of the duct run supplies 1 room & a ...
  A: Paul, Your indoor unit is rated 5 tons and it's blower is rated at approximately 2000 CFM. Three 12" ...
Supply & Return Duct Sizing11/27/2011
  Q: I have 2 rooms that are supplied w/ 1 large duct. The end of the duct run supplies 1 room & a ...
  A: Paul, " I have 2 rooms that are supplied w/ 1 large duct" What size is the duct? Where is the duct? ...
Supply & Return Duct Sizing11/26/2011
  Q: I have 2 rooms that are supplied w/ 1 large duct. The end of the duct run supplies 1 room & a ...
  A: Paul, I'm not really clear about what your unit is exactley, For 5 tons of cooling you need 400 CFM ...
Intercity furnace11/26/2011
  Q: I have been having trouble with my furnace coming on (lighting), running a few seconds then dropping ...
  A: John, I think the flame sensor may need cleaning? The flame sensor should be an eliment that sticks ...
7.5 ton heat pump11/22/2011
  Q: Jim, I have a 7.5 ton heat pump unit. The units compressor and fans run and stop constantly... every ...
  A: Jesus, I'm not familiar with your heat pump. Where I live heat pumps are pretty much non existent ...
to clean or not to clean the house ducts11/20/2011
  Q: I live in a 3 story townating with gas and house in No.VA. It has a forced hot air heating system ...
  A: Carl, I don't know the history of your inside Air Handling unit or where it is installed in your ...
coleman evcon heater11/20/2011
  Q: My unit is about 12 yrs old. The a/c works fine but the heater..The ignition clicks but there is no ...
  A: Jan, I don't know what the igniter is? spark or glow. If your just getting one click you may need to ...
Payne Floor Furnace11/8/2011
  Q: I have an old Payne Floor furnace emitting a slight gas odor. PG&E inspected and said possibly ...
  A: Athena, I'm not sure what your smelling? raw gas or gas fumes? If the "cap" isn't tight or has a ...
Trane 1200Xl11/8/2011
  Q: I have an outdoor Trane 1200XL that makes a squealing sound each time I turn the heating on. If i ...
  A: Niko, The outdoor unit is the heat pump, which is the compressor and the condenser fan + controls ...
Coleman Heater11/6/2011
  Q: We have a Coleman heater for a mobile home and the fan keeps cycling on and off even after the flame ...
  A: Mike, The Coleman furnace most likely has a thermo-disc fan switch that needs replacing, the disc is ...
furnace runs but air is not that warm & seems to run forever11/3/2011
  Q: We have a 6 month old small mobilehome that we had an outside air conditioner unit installed using ...
  A: Brenda, Is it a gas furnace? Dose the thermostat have an indicator that you switch from heat to ...
furnace runs but air is not that warm & seems to run forever11/3/2011
  Q: We have a 6 month old small mobilehome that we had an outside air conditioner unit installed using ...
  A: Brenda, I don't know what your calling a "furnace"? It sounds more like you have a "heat pump"?' The ...
Gas furnace leaks water11/1/2011
  Q: I have ICP furnace Comfortmaker. It is high efficiency furnace about 9 years old. Noticed some ...
  A: Alex, I have no idea where the leak is? What I was trying to say is you start at the drain line and ...
thermostat problem10/30/2011
  Q: I have a Perfection stand alone gas heater. Works perfect except now it will no shut off, I can ...
  A: Charles, When the thermostat won't shut the furnace off by itself you can disconnect a wire from the ...
Seeking Unbiased A/C Inspection10/27/2011
  Q: I have had three different A/C companies find three different leaks responsible for my Freon leaking ...
  A: Angela, Freon doesn't get used-up it has to leak or be let out of the system. I don't know the ...
AC Intake Vent Clearance?10/27/2011
  Q: I have a question about the amount of clearance need for an AC intake vent. We live in an old home ...
  A: Brad, The air handler needs a minimum of 200 square inches of free area for the return, thats 200 ...
gas furnace blower reversing by itself10/26/2011
  Q: I’ve noticed that my York gas furnace does not heat up the house properly. At first, I thought that ...
  A: Alex, From your first question, " the main blower at some moment all of a sudden stops". What I said ...
gas furnace blower reversing by itself10/26/2011
  Q: I’ve noticed that my York gas furnace does not heat up the house properly. At first, I thought that ...
  A: Alex, I'm not really puzzled but I just don't think I'm getting all the information. I'm assuming ...
blower problems10/21/2011
  Q: i have a model NFCX2400C1 sometimes the blower runs all the time even though the compressor shusts ...
  A: Collin, I have no what a "model NFCX2400C1" is? There are many different types of heating and ...
coleman gas furnace10/20/2011
  Q: The furnace comes on cycles through the whole thing, fan shuts down, the fan restarts after about ...
  A: Rick, I assume the cover is removable on the switches? Maybe an adjustable do-dad inside? If you can ...
Armstrong Air Ultra V Furnace10/19/2011
  Q: Recently had blower motor replaced and since that time it sounds like a jet engine is taking off ...
  A: Steve, You could be right? The blower is a direct drive blower, the squrrill cage blower wheel ...
New Thermostat Problems with Heater10/19/2011
  Q: I bought a Hunter 44272 Programmable Thermostat this summer, and it worked fine until it was time to ...
  A: Lucus, By pass the thermostat by crossing the R and W wires, take the wires off of the thermostat ...
New Thermostat Problems with Heater10/19/2011
  Q: I bought a Hunter 44272 Programmable Thermostat this summer, and it worked fine until it was time to ...
  A: Lucus, I don't know what your thermostat is exactly or what all it controls? Check your low voltage ...
coleman gas furnace10/18/2011
  Q: The furnace comes on cycles through the whole thing, fan shuts down, the fan restarts after about ...
  A: Rick, The two switches you mention are probably a fan switch and the other a limit switch? I don't ...
amana combination unit10/12/2011
  Q: Gas furnace cycles correctly but the main blower will not come on so it will shut off from over ...
  A: Lynn, The furnace has a blower relay that determines when the blower runs depending on if the ...
heat pump thermostat10/4/2011
  Q: I have a Trane Taystat 575 thermostat on my heat pump system. I am trying to keep the Aux heat from ...
  A: Rose, When your thermostat calls for heat the heat pump comes on, if the heat pump can't gain ground ...
heat pump thermostat10/3/2011
  Q: I have a Trane Taystat 575 thermostat on my heat pump system. I am trying to keep the Aux heat from ...
  A: Rose, 3 cph allows your emergency heat to come on and run 3 times a day, 9 cph allows your emergency ...
promblem with furnace blower.10/2/2011
  Q: I have a heating furnace American Standard model AUD080C936H.Furnace is 16 years old and just about ...
  A: Giedrius, You can can clean the Blower compartment,squirrel cage, blower motor. The motor has a ...
Amana Air conditioning9/29/2011
  Q: I have an Amana air conditioner unit model#chf42tcc, the air intake fan stopped working and when we ...
  A: Stephanie, I think your attic unit blower motor is shot and needs replacing, you can try getting ...
air ventilation in condo with high ceilings9/28/2011
  Q: appreciate any advice/thoughts you have. I am in a two level loft condo with 16.5 foot ceilings and ...
  A: Heather, How dose the outside air come into the house, and on into the room that you want to ...
air ventilation in condo with high ceilings9/25/2011
  Q: appreciate any advice/thoughts you have. I am in a two level loft condo with 16.5 foot ceilings and ...
  A: Heather, Fan's, blowers etc. can't manufacture the air that it moves about. If you want to exhaust ...
Home Furnace Filters9/21/2011
  Q: I have been hearing different theories regarding filters for my gas furnace. Some say that the ...
  A: Jon, I never was associated with any type of "Rocket since furnace air filter investigation" but ...
Cost of running a.c.9/20/2011
  Q: Don't know if this is part of your knowledge base but hope it is because Con Edison has not been ...
  A: Pamela, Look for "AMP"s or "Watts" or FLA (full load running amps Are window air conditioners ...
Janitrol heater9/18/2011
  Q: I just bought a house which has a heating system with forced air Janitral. I tried to turn the ...
  A: Alma, What you have in your basement is a Janitrol forced air up-flow gas furnace. The Janitrol name ...
old air compressor, new air handler9/17/2011
  Q: My air handler is 2008, my outside unit is a 99. I have been told if I want to replace the outside ...
  A: Vicki, I don't know exactly what your inside "air handler" is? if you change out the outside ...
Cost of running a.c.9/16/2011
  Q: Don't know if this is part of your knowledge base but hope it is because Con Edison has not been ...
  A: Pamela, Here's the skinny! First of all I have no idea what "Con Edison" charges for the use of ...
Carrier Weathermaker SX heat exchanger gasket material9/16/2011
  Q: My heat exchanger is removed from my air handler after removing the screws that hold the primary ...
  A: Art, I have no idea what your talking about? "cell plate" etc? I don't have a manual on your "air ...
Options for improved air flow9/14/2011
  Q: I am replacing a combined (gas pack) a/c heat pump and trying to evaluate two different approaches ...
  A: John, I don't know what size hvac unit you have but a 12" round "plenum" is not sufficient to begin ...
Options for improved air flow9/13/2011
  Q: I am replacing a combined (gas pack) a/c heat pump and trying to evaluate two different approaches ...
  A: John, I am having a bit of trouble understanding exactly what all your duct system in tails? "12" ...
Central A/C9/11/2011
  Q: Do you know anything about Comfort Star central a/c systems? Good, bad, would you install in your ...
  A: Jan, I can't give you the answer your craving, it doesn't exist. If a manufacturer sold 50,000 air ...
Central A/C9/10/2011
  Q: Do you know anything about Comfort Star central a/c systems? Good, bad, would you install in your ...
  A: Jan, I would install Install "Comfort Star central a/c system" in my home If there was a local ...
Central A/C9/8/2011
  Q: I asked this question of another expert but he wouldn't give me any recommendations as to ...
  A: Jan, Again a heat pump is just a refrigerated air conditioner. When your cooling the outside ...
Central A/C9/8/2011
  Q: I asked this question of another expert but he wouldn't give me any recommendations as to ...
  A: Jan, A heat pump is the same thing as an air conditioner except it has controls that allow it to run ...
air conditioning9/7/2011
  Q: I would like to know if the reason my electric bill is that the air conditioner needs work of some ...
  A: Esther, If you have a friend or a relative that has some mechanical ability and that you can trust ...
filter dryer placement9/6/2011
  Q: didnt find a filter dryer on coolong system where do i in stall one? ANSWER: Mike, If you have one ...
  A: Mike I have no Idea what type of cooling coil you have? Or where it is installed? If you need a ...
air conditioning9/6/2011
  Q: I would like to know if the reason my electric bill is that the air conditioner needs work of some ...
  A: Esther, You need an on sight inspection of your system plus some one to go over the way things work. ...
Trane furnace motor9/6/2011
  Q: I had a Trane XR80 gas furnace installed in April 2003. The motor is burned out. Is that normal? ...
  A: Jack, Your call Jack! There are quite a few furnaces and air conditioners that I installed fifty ...
bryant fan not working9/4/2011
  Q: m/n 561cj024-d bryant ac outdoor units fan not coming on and is super hot to the touch. could the ...
  A: Roy, Sounds like the condenser fan motor is faulty? Usually when the motor first try's to start it ...
air conditioning8/31/2011
  Q: I'm desperate need of help! My electric bill came out to $ 298 this month compared to last year ...
  A: Esther, I don't know how your electric company dose business? The price of electricity isn't the ...
a/c problem8/29/2011
  Q: I had an a/c unit which didn't seem to be working properly (just no cold air). Had a service guy ...
  A: Mark, So what's the proublem? Is the unit running OK now? Did you replace the capacitor? The unit is ...
switch help8/28/2011
  Q: I am in the USA and I am a Computer Repair Tech. and know a little bit about Home Electrical. I ...
  A: Robert, A light switch has a wire that brings live voltage electric power to the switch, It also has ...
SWITCH HELP8/27/2011
  Q: Am I right that the Two Switchs that work the One Lite in say the Hallway are just Two 2. way ...
  A: Bob, If the switches are three way switches and wired correctly you can turn the hall light on and ...
Rusted coil for R22 Air Conditioner8/25/2011
  Q: I have a 4 ton Carrier Puron system installed in 2003 - they have told me it is a 10 SEER. It has ...
  A: Robyn, Are you having a problem with your air conditioning system or is the service person just ...
air conditioning8/18/2011
  Q: the tenants in my house admitted that they did not change the air con filters for an entire year. ...
  A: Hussain, I don't know the particulars of the situation but it would be a first for me if a dirty ...
A/c heat pump problem8/16/2011
  Q: I have an electric heat pump central ac system. The system keeps the house cool to the set temp ...
  A: Jeff, What's the set temperature, day, night? What's the outside temperature? What comes on with the ...
Electric heat8/13/2011
  Q: I have a Goodman a/c unit with electric heat that has 4 heat strips. I noticed today that the ...
  A: Don, Goodman is a manufacturer of heating and cooling equipment but just the name doesn't tell me ...
Air conditioning8/10/2011
  Q: my ac condenser on my roof does not shut off when I reach my desired temp on the thermostat, nor ...
  A: Josh, Check the contactor in your condensing unit, there should be two low voltage 24 volt ...
AC thermostat won't turn on compressor or Condenser fan8/8/2011
  Q: My Air Conditioner stopped working last night and was wondering if you could help. The thermostat ...
  A: Larry, Should I assume that you checked the outside low voltage wires and you took the R and Y ...
AC thermostat won't turn on compressor or Condenser fan8/7/2011
  Q: My Air Conditioner stopped working last night and was wondering if you could help. The thermostat ...
  A: Larry, You can take the wires off of the thermostat "R" and "Y" posts and twist them together, if ...
Goodman 20kw Air handler Diagram8/6/2011
  Q: Do you have any idea where I can get a wiring diagram for the goodman 20kw air handler strip heater?
  A: Jim, Go to Google Images and type in, wiring diagram goodman 20kw air handler strip heater. Also ...
central air runs all night8/2/2011
  Q: .i have 2 new payne units here at home. at night, i turn one that cools the kitchen area of the ...
  A: James, Air conditioning units are sized approximately for a twenty degree difference between the ...
Trane XR80 - LED flash 6 times- 115 volt polarity is reversed or bad grounding8/2/2011
  Q: Barnhart Good evening to you and my name is John. I'm writing to you regarding Trane XR80 (manufac. ...
  A: John, If your units wires, controls,circuit board etc. got wet or are wet that's enough for you to ...
Inside AC unit shakes7/27/2011
  Q: We have 2 Janitrol units one for upstairs, one for downstairs. Both units are about 7 years old. The ...
  A: Emily, I suppose if something vibrates long enough and fast enough it could loosen something else ...
Heat pump unit not cooling7/26/2011
  Q: The compressor and outdoor fan wont run and there is no cooling. The blower motor runs. I tested for ...
  A: jeasus, I don't know your unit? I don't have a user manual or wiring diagram of your unit, there are ...
Code for Mastic Seal on Air Conditioners7/26/2011
  Q: We have a situation where the condenser and the coil both have to be replaced on our 1986/1987 Rheem ...
  A: Jennifer, I don't know exactly what you have going on? A condensing unit wouldn't be in a crawl ...
Heat pump unit not cooling7/25/2011
  Q: The compressor and outdoor fan wont run and there is no cooling. The blower motor runs. I tested for ...
  A: Jesus, The the "R" post at the thermostat is the 24 volt power to the thermostat, when you switch to ...
Excessive condensation7/25/2011
  Q: We have a two story house with a full basement. Our furnace is a Carrier Heat Pump Unit. It's an ...
  A: Nancy. I say that the condensate drip pan that is directly below the "A" coil is clogged up enough ...
Excessive condensation7/25/2011
  Q: We have a two story house with a full basement. Our furnace is a Carrier Heat Pump Unit. It's an ...
  A: Nancy, I don't know what your furnace Is as far as type/configuration? If it's an up-flow furnace ...
AC won't work after basement flooding7/24/2011
  Q: Today in the Chicago area record rain led to basement flooding - sewage backed up in our house about ...
  A: Michelle, The fact that the outside unit will run proves that the electric source to the outside and ...
compressor7/22/2011
  Q: I HAVE A 2 1/2 TON COMPRESSOR AND A 3 TON AIR HANDLER "installed by mistake" REWIRED TO BLOW LESS ...
  A: Leonard, I'm not sure exactly what your dealing with? The outside unit is a condensing unit, a ...
Heat/ air unit out PLEASE HELP!!!!!7/21/2011
  Q: I have a Ruud 10 seer it was manufactured 07/96. My heat and air unit has been out for about 3 ...
  A: NaKeshia, Your picture doesn't help? If the fan motor is a 220 volt fan motor and its getting 220 ...
A/C Fan Problem7/20/2011
  Q: I am having an issue with my air conditioner that runs through our furnace (Coleman EB15B). The ...
  A: Bruce, The thermostat is just a switch, when the thermostat is set for cooling and the fan switch is ...
hvac ductwork7/19/2011
  Q: I have a 11/2 story house in mpls,mn. To supply the upstairs with hvac, I have a 6" or 8" supply off ...
  A: tom, A 6" round is 28.26 square inches of capacity. An 8" round is 50.24 square inches of capacity. ...
Uneven cooling/air conditioning7/18/2011
  Q: I read your answer to the person with the 55 year old home. We have a bunga-loft with the master ...
  A: Carolyn, I don't know when I ever advised someone to "stuff the vents to prevent cold air"? The ...
Closing and sealing duct fittings7/18/2011
  Q: I just moved into a house 2 weeks ago, and last night discovered two duct fittings (I think that's ...
  A: Trong, That's a good drawing especially from memory. The duct fitting where the air is blowing out ...
Evaporator Coil Cabinet Alteration7/13/2011
  Q: An installer cut down the cabinet for my Heil evap coil on top of my Heil N9MP2 furnace. This was ...
  A: Gary, I can't tell anything from the picture? A picture that shows the coil cabinet in it's entirety ...
Evaporator Coil Cabinet Alteration7/13/2011
  Q: An installer cut down the cabinet for my Heil evap coil on top of my Heil N9MP2 furnace. This was ...
  A: Gary, I don't have any dimensions or description of the configuration of the finished alteration, ...
air flow patern7/12/2011
  Q: This may be a bit out there but here goes. I work at an art museum and we are trying to produce a ...
  A: Barney, in order for air to circulate it has to be supplied and also have a way out. You most likely ...
a.c.unit7/11/2011
  Q: our air conditioning unit is working but it is blowing hot air. if their is a fuse problem. then ...
  A: Edwin, The description "air conditioning unit" covers a lot of different types, I don't know what ...
Trane Reset button7/10/2011
  Q: Sir, I have a Trane XB13 model #2TWB3036A1000AA. The unit was installed 3 weeks ago and was working ...
  A: Barry, There is no reset button. If there is power to the outside unit (line voltage 220/240) then ...
AC leak7/10/2011
  Q: hope you can give me yr opinion. I had a technician check my heat pump/ac 2 weeks ago, my unit was ...
  A: Maria, leaks can be repaired or just plain fixed, Some leaks can't be repaired or fixed. It depends ...
purchasing new unit7/9/2011
  Q: We will be purchasing a new air/gas heat unit within the next 48 hours. We have gotten estimates ...
  A: Steve, All brands are pretty much equal in quality as long as your comparing apples to apples. The ...
Residential HVAC7/7/2011
  Q: I have 2 Carrier air conditioning units (both Model # 38CK048310) that came installed with our home ...
  A: Kevin, You have to take a considerable amount of more things into consideration to get the amount of ...
Residential HVAC7/6/2011
  Q: I have 2 Carrier air conditioning units (both Model # 38CK048310) that came installed with our home ...
  A: Kevin, A 1994 vintage unit isn't a terribly old unit, There are units I installed fifty years ago ...
HVAC - Air blows to hard and mold in duct system7/4/2011
  Q: My home has 1729 square feet of living space and I had the HVAC system replaced about three years ...
  A: Hentze, With a 4 ton condensing unit you need a 4 ton cooling coil. You need 1600 CFM of air from ...
Carrier a/c problem7/2/2011
  Q: My Carrier a/c units hose to the furnice is sweating and the high and low freon intake valve unit is ...
  A: Patrick, Since I don't have all the particulars on your "Carrier a/c unit" It's difficult to come up ...
Carrier a/c problem7/1/2011
  Q: My Carrier a/c units hose to the furnice is sweating and the high and low freon intake valve unit is ...
  A: Patric, I don't know what "hose to the furnace is" are you talking about the condensate drain? Your ...
true ac tonnage needed6/28/2011
  Q: I'm installing a new central air system in my house. I have just completed the all the proper sized ...
  A: Mike, The SEER doesn't have anything to do with how well it cools. You need to consider how warm it ...
Air conditioner - air quality6/27/2011
  Q: Is it possible for R-410A to be dispersed into air in my home. My family has had respiratory ...
  A: Donna, The only way R-410A is going to get into living space is if it leaks out of the system or if ...
Gaffer & Sattler Mission Wall Heater6/26/2011
  Q: We have two of the Gaffers & Sattler Wall heaters throughout the house. A couple are single sided ...
  A: Kristina, There should be a rating plate inside the heaters access to the controls compartment. If ...
Unico/Bryant system & odor6/26/2011
  Q: I have 3 Unico 2 year old HVAC systems w/ exterior Bryant AC units that use Puron 410A. I have a ...
  A: Dan, Did your unit have a leak? If it had a leak you would know it. Puron smells like Puron, Can't ...
Heil Heating And Air Unit6/23/2011
  Q: We have a Heil central heating and air unit. We have replaced the contacter already. We have air ...
  A: Kevin, I don't know what type of unit/units your dealing with? I'll assume it's a split system with ...
matching coil, condenser, and furnace6/23/2011
  Q: I have just purchased a Carrier 24APA542A0031010 3.5 ton condenser. I have an existing Payne ...
  A: Ryan, You need a 400 CFM per ton of cooling blower, for 3.5 ton's of condensing unit your furnace ...
line set6/21/2011
  Q: to tide the line set to condenser unit or evaporator unit do you use any type of tape
  A: Miguel, 1. Connect lines to evaporator coil before connecting to the condensing unit, locating ...
Move a vent6/20/2011
  Q: I would like to move an heat/air vent from one wall to another. The current wall the vent is ...
  A: Barb, Exposure is the something that heats or cools the room like the outside air if it's cold ...
ac and heater compatibility (15 year old gas furnace and a new energy efficient a.c.6/19/2011
  Q: My a.c condensing unit and coils are shot. I want to go back with a 16 seer energy efficient unit. ...
  A: Tbridges, With a 5 ton unit you need an outside condensing unit. The seer rating is just how much ...
A/C liquid line is cold6/16/2011
  Q: My Goodman 3 1/2 ton condenser is blowing cool air out and the liquid line to the evaporator coil is ...
  A: Terri, You need to call the people back who serviced your unit and make them fix it. All of what you ...
Carrier 38ckb060300 a/c split system6/13/2011
  Q: Last week I had concrete slab removed and new poured around the exact area the compression unit is ...
  A: Barb, The unit could be low on refrigerant? I don't know what all the work crew moved or might have ...
YORK HEAT PUMP6/12/2011
  Q: I have a York heat pump, Model B2HP030A06A. It is only about three years old. We are just starting ...
  A: Nancy, It's a self contained unit there is no reset. if the condenser section of the unit isn't ...
unico6/11/2011
  Q: I recently had a 1.5 ton unico air conditioning system installed to cool the upper floor (1000) ...
  A: Heather. A starting point rule of thumb for sizing an ac unit is 1 ton per 400 sq. ft., you plus or ...
YORK HEAT PUMP6/11/2011
  Q: I have a York heat pump, Model B2HP030A06A. It is only about three years old. We are just starting ...
  A: Nancy Model numbers don't help me identify what type of equipment you have? I'm assuming that you ...
Replacing furnace and ductwork.6/4/2011
  Q: I'm gutting and renovating an old house which will include replacing and relocating a gas forced air ...
  A: David. I don't know what your replacing the old with? If your installing a 90+ efficiency furnace ...
Heil Furnance w/AC6/4/2011
  Q: I have a Heil High Efficiency furnace with a variable speed blower which was installed in 2003. We ...
  A: Kent, you could have a faulty blower motor, if the motor isn't spinning up to the rpm's you coil ...
commercial heat and air unit6/3/2011
  Q: we have just purchased a business and heat and air both don't work. have 3400 sq feet to heat and ...
  A: Shirl, Where I live it costs 4 to 5 times more to heat with electricity then it dose gas so it's a ...
AC not cooling house6/2/2011
  Q: My ac unit is running but just does not seem to be cooling the house, The filter was changed march ...
  A: Brian, If You have a 3 ton unit and and it's 82 degrees in the house 92 degrees outside, the house ...
AC not cooling house6/2/2011
  Q: My ac unit is running but just does not seem to be cooling the house, The filter was changed march ...
  A: Brian, You didn't answer my question about the air temperature going into the return air grill? You ...
Duo-therm AC unit5/29/2011
  Q: My unit was working and then just stopped. I have the exposed the circuit board. when i turn on and ...
  A: Sam, The description "unit" covers a lot of territory, Duo-thurm just says what the name is. Can you ...
AC SMELL QUESTION5/25/2011
  Q: A question if I may: In my home I have two central air units one for my upstairs and one for the ...
  A: Martino, There is nothing within the structure of the units or duct work that would cause the smell ...
new unit loses freon weekly5/23/2011
  Q: I bought a foreclosed home May of 2010. I had a brand new A/C unit installed (and coil inside) as ...
  A: Winona, Freon doesn't get used up in a system. Freon ether has to leak out or be let out. I don't ...
dust in furnace and ducts5/19/2011
  Q: i just rented a house and the a/c went out the technician came and fixed but said the furnace was ...
  A: Virginia, The dust in your furnace and furnace ductwork is dust that was floating around in the air ...
outside air conditioning unit5/15/2011
  Q: outside unit will not come on, it has on a few times but when it reaches desired temp it shuts off, ...
  A: Larry, It sounds like there is a wiring problem some place along the line and the unit isn't getting ...
Control board wiring for AC contactor relay4/27/2011
  Q: I have a American Standard freedom 90 furnace/AC unit. The control board was replaced to fix a ...
  A: Tom, I don't hav anything to look at as far as wiring digrams, or manuals for your unit/unit's? The ...
r-22 shelf life4/26/2011
  Q: is there a shelf life on sealed container of Genetron r-22 refrigerant (1995, full 30 lbs.)Can I ...
  A: Richard, I don't know the answer to your question for sure? When r-22 is in a refrigeration system ...
Thermostats for Mcquay ws hp4/25/2011
  Q: Can I use a thermostat other than a Mcquay for a Mcquay Enfinity vertical water source heat pump. It ...
  A: I don't have any manuals on your equipment, thermostat's etc. I cant read the schematic you sent ...
Replacing R-22 compressor with R-410 unit4/22/2011
  Q: Our 12-year old R-22 compressor is on its last legs, and the service technician recommended ...
  A: David, R22 compressors are available. I'm not getting the whole story? I don't know what your system ...
1962-63 Holly 80VF4/18/2011
  Q: Do you know the AFUE of a 1962-63 Holly 80VF forced air unit. The plate reads 80,000 input BTU but ...
  A: Del, The "Bonnet capacity" is the BTU output. The furnace was rated by the manufacturer as 80,000 ...
cleaning fan blades4/13/2011
  Q: .i was watching a you tube video, showing the proper way to clean a compressor with a hose. however, ...
  A: James, The outside unit is a "condensing unit", inside the condensing unit is a compressor, a ...
cleaning fan blades4/13/2011
  Q: .i was watching a you tube video, showing the proper way to clean a compressor with a hose. however, ...
  A: James, I don't know of any fan blades inside of a compressor, you may be talking about the condenser ...
Thermostat4/11/2011
  Q: I notice my (white rodger 1f95 1277) thermostat was blank last night figured it was the batteries so ...
  A: Amanda, Sorry I don't know your thermostat? Log onto this site it should tell you what you want to ...
Nordyne s5qd leak caused by my child, can it be patched/soldered?4/7/2011
  Q: I have a Nordyne s5qd 5 ton. My son jabbed a small machete into the side and caused a pinhole leak ...
  A: Charlie, it can be patched with special solder/material if the hole is accessible, after repair it ...
TRANE UNITS4/4/2011
  Q: I am in the market to purchase a Trane, I am being told that model 4TWR5030 is not a basic model, ...
  A: Diane, Trane "model WTWR5030" is a basic 2.5 ton 15 SEER split system heat pump. It is no better or ...
Thermostat4/2/2011
  Q: I am not getting anything out of my heat pump/AC thermostat. Setting thermostat to come on in heat ...
  A: Hank, The inside unit furnishes the electric power for the thermostat to operate. Make sure that the ...
Damage or good?3/29/2011
  Q: Is it safe to pour chlorine or bleach thru the A/C blowing units' drain pipes to maintain them ...
  A: Rick, As long as the chlorine bleach is confined to the inside wall of the PVC pipe you should be ...
Damage or good?3/29/2011
  Q: Is it safe to pour chlorine or bleach thru the A/C blowing units' drain pipes to maintain them ...
  A: Rick, It's nice to know what your calling "A/C blowing units"? It's also helps to know where the A/C ...
Damage or good?3/28/2011
  Q: Is it safe to pour chlorine or bleach thru the A/C blowing units' drain pipes to maintain them ...
  A: Rick, I don't know what type of system your A/C drain is? The drain line/lines are whatever the ...
American Standard error 93/27/2011
  Q: I have an American Standard UX1B060A9361A that has a heat pump and gas heat. I noticed that my heat ...
  A: David, If your igniter doesn't do anything no spark or glow depending on the type then nothing else ...
American Standard error 93/27/2011
  Q: I have an American Standard UX1B060A9361A that has a heat pump and gas heat. I noticed that my heat ...
  A: David, Your original question says " when I cut the power off to the unit, wait 15-20 sec, and ...
American Standard error 93/27/2011
  Q: I have an American Standard UX1B060A9361A that has a heat pump and gas heat. I noticed that my heat ...
  A: David, When the thermostat calls for heat from your gas furnace under the house the vent induced ...
Best A/C Condenser for the Money3/26/2011
  Q: Hi. I hope your day is going well. Thank you so much for reviewing my question below. I have a ...
  A: Richard, No problem, ask all the questions you want any time, I'll do the best I can to answer. Now ...
Heating, Air Conditioning, Fridge, HVAC/Carrier Furnance Model 58PAV090-143/25/2011
  Q: The igniter was burned out so I replaced it with a new one. Turned On furnace, blower began running, ...
  A: Chris, It could be a dirty/corroded flame sensor or even a dirty filter. However with the flame ...
2nd level no heat-boiler system3/24/2011
  Q: I have a Weil-McLain VHE water boiler system with two thermostats. The second floor thermostat ...
  A: Josh, Your problem could be the low voltage wiring or the zone valve? I don't know exactly how your ...
frozen outside a/c unit3/23/2011
  Q: we have central a/c unit, 2 story home, one unit for upstairs, one for downstairs. I'm in NE Texas, ...
  A: Sharon, The inside unit which is the other part of the split system, I assume it's in the attic? I'm ...
Best A/C Condenser for the Money3/22/2011
  Q: Hi. I hope your day is going well. Thank you so much for reviewing my question below. I have a ...
  A: Richard, I think the guy is "jerking" you around"? I'm not in the flow of things any more but I ...
Best A/C Condenser for the Money3/19/2011
  Q: Hi. I hope your day is going well. Thank you so much for reviewing my question below. I have a ...
  A: Richard, Janitrol was one of the brands I started out in the trade with back in 1950, they just ...
Ventilation of a gas water heater in Pennsylvania3/13/2011
  Q: Greetings, I am looking for the code that states that gas water heaters have to be ventilated. My ...
  A: Karla, Every building municipality has it's own building code. You need to contact the building ...
Condensing Horizontal Furnace Leaking from Behind Heat Exchanger Panel3/9/2011
  Q: Your previous Answer: Chevy, I If you read my profile you know I'm retired, I retired about the ...
  A: Chevy, You didn't give a location of where the furnace/furnaces are located in your original ...
product comparison3/8/2011
  Q: I am currently changing my oil forced hot air furnace with gas thinking about going with century 95% ...
  A: Suzanne, If you compare the same components, same BTU's, same CFM, etc.etc. there isn't one that's ...
Concord Furnace Leaking Behind Panel of Heat Exchanger3/7/2011
  Q: We all appreciate the help you give. I have a Concord 90 High Efficiency Gas (Propane) Furnace, ...
  A: Chevy, I If you read my profile you know I'm retired, I retired about the time 90+ efficiency ...
HVAC mold3/6/2011
  Q: We are located on the Gulf coast of east Texas and installed complete HVAC system & duct work on ...
  A: Ignacio, You've eliminated the condenser as a proublem. I don't understand what your conditions are ...
Furnace filter help3/6/2011
  Q: I have puchased an old house -built in 1945-and it has a Lennox GF6-100T furnace in it. I would ...
  A: Stan, I don't deal with Lennox equipment for various reasons therefor I don't know exactly what all ...
HVAC mold3/5/2011
  Q: We are located on the Gulf coast of east Texas and installed complete HVAC system & duct work on ...
  A: Ignacio, The guy is looking for people to rip off, you need to get rid of him. The condenser is the ...
Concord Furnace Leaking Behind Panel of Heat Exchanger3/3/2011
  Q: We all appreciate the help you give. I have a Concord 90 High Efficiency Gas (Propane) Furnace, ...
  A: Chevy, I'm sorry I didn't answer all you questions, If your heat exchanger is bad you can't fix it ...
Concord Furnace Leaking Behind Panel of Heat Exchanger3/3/2011
  Q: We all appreciate the help you give. I have a Concord 90 High Efficiency Gas (Propane) Furnace, ...
  A: Chevy, The only water associated with your furnace is condensation water. It's not normal for the ...
Large temperature variances2/26/2011
  Q: In May of 2010 my wife and I purchased a brand new home. We had a pretty warm summer and our house ...
  A: Tim, I don't know exactly what your floor plan is, what your heating system is? The amount of heat ...
My ac is not working properly2/24/2011
  Q: I live in a 4 bedroom 2 bath home, I run my ac everyday because we live in Florida. The problem I ...
  A: Kim, I'm not sure what you have?Is it an air conditioning unit only, a heating and air conditioning ...
condo ceiling air handler backup drain dripping2/23/2011
  Q: Air handler located in our condo bathroom ceiling. Backup drain line runs to port above bathtub ...
  A: Randy, How the air handler in your condo is installed is anybody's guess? Once the unit is delivered ...
water softner or whole house water filter2/22/2011
  Q: we have hard water problem and just bought a house. I am thinking to get a water softener (salt) or ...
  A: Hakan, Water softeners are not my line of expertise. However I've heard commercials on the radio ...
CENTURY CONQUEST 80 GAS FURNACE2/16/2011
  Q: HUSBAND LOST THE TROUBLESHOOTING GUIDE PANEL. WHAT DOES ONE BLINK MEAN ON OUR CENTURY CONQUEST 80 ...
  A: Eva, I don't know what one blink means on your particular furnace I need to see the guide also, ...
Goodman Heat Air2/16/2011
  Q: I am trying to find out where to hook up the 'C' wire for the constant power back to the thermostat. ...
  A: Jason, I don't have a manual on your "PGB03600-1", I don't have a reference library for researching ...
furnace does not come on when beeing called2/12/2011
  Q: I have a Lennox furnace at home setup with three zone, all of the thermostat are set to certain ...
  A: Dante, I don't know your exact furnace type/model (not model number)but efficiency and location,such ...
2-Stage A/C2/10/2011
  Q: I'm replacing my old central air system. Anything over 13SERR is 2-stage, but I don't have a 2-stage ...
  A: Bill, Your furnace blower assembly needs to be able to produce the required amount of CFM's for the ...
electric heat furnance2/9/2011
  Q: my heat ducts come down from ceiling and black sout blows out on ceiling, what causes this to do ...
  A: Leon, Do you keep a clean filter in your unit? When you change the filter do you see all the ...
miller furnace model M3RL 060AAW2/9/2011
  Q: Furnace blower runs constantly with no heat.red light on panel blinks constantly. ingiter doesn't ...
  A: Marton, If the thermostat is calling for heat it's normal for the furnace blower to run until the ...
Thermostat2/7/2011
  Q: We have an Empire Floor Furnace, Model 3588-3, only 2 years old. The plumbers installed a Empire ...
  A: Lawrence, If the burner lit when you twisted the two wires together it means that everything is ok ...
Thermostat2/6/2011
  Q: We have an Empire Floor Furnace, Model 3588-3, only 2 years old. The plumbers installed a Empire ...
  A: Lawrence, The biggest problem that millivolt systems have is that every wire connection from the ...
Concord 80 Gas Furnace2/4/2011
  Q: I have a Concord 80 gas furnace that is having problems. The furnace is in the basement. There is a ...
  A: Gale, When the small vent exhaust blower runs it closes the pressure switch which allows electric ...
Concord 80 Gas Furnace2/4/2011
  Q: I have a Concord 80 gas furnace that is having problems. The furnace is in the basement. There is a ...
  A: Gale, I don't keep reference books on furnace models, I have no Idea what a "Concord 80 Gas Furnace" ...
Gas package Unit-- Heat and A/c Unit1/31/2011
  Q: The foil lined insulation inside the top of our Day & Night Unit is coming off the insulation. Small ...
  A: Oliver, I don't know what your options are where you live, you can check Lowes, Home Depot, Ace ...
Air con problem1/30/2011
  Q: I have a reverse cycle ducted air conditioning system that has not been performing well for a while ...
  A: Andy, What you have is a "Heat Pump" split system. the outside unit is the condensing unit, the two ...
armstrong furnace problems1/29/2011
  Q: we had a repair guy out because it will not stay lit he said it was the flame sensor ,first he ...
  A: Steve, What they call a "thermal protection switch" could be anything that is activated by the ...
Air con problem1/29/2011
  Q: I have a reverse cycle ducted air conditioning system that has not been performing well for a while ...
  A: Andy, I don't recognize your unit? is it a split system or a self contained unit? Is it an air ...
Leak on flew pipe1/27/2011
  Q: I have a 80% furnace in attic. Double wall b vent pipe 40 ft long. The water is leaking out elbow ...
  A: David, I don't understand a furnace in the attic having a 40' long flue/vent pipe? I would be ...
heat pump replacement1/25/2011
  Q: I live in a town house that has a roof mounted heat pump. A friend wants to give me new model heat ...
  A: Dorothy, The outside condensing unit of a heat pump can be mounted any place outside, roof or ...
1960 furnace - original to my house1/23/2011
  Q: My house was built in 1960. We still have the original furnace -- oil. It's the kind that heats ...
  A: Debbie, I don't know what your heat is? Is it "hot water baseboard radiation" Do you have an oil ...
1960 furnace - original to my house1/23/2011
  Q: My house was built in 1960. We still have the original furnace -- oil. It's the kind that heats ...
  A: Debbie, The rooms with the most exposure are going to be the coldest. The exposure can change from ...
Furnace1/21/2011
  Q: We have a AirEase 80 Plus gas furnace. When temp gets low enough for furnace to go on it will work ...
  A: Carol, The furnace has a faulty motor or a faulty motor capacitor. When the motor stops it stops on ...
AIR CONDITIONING1/19/2011
  Q: MY AIR CONDITIONING UNIT IS NOT WORKING. MY SYSTEM HAS MY FURNACE UNIT UP IN THE SPACE BETWEEN THE ...
  A: John, I don't know what your calling "AC UNIT" or "FURNACE UNIT" what are you trying to do heat the ...
Rudd Deluxe Drum High Efficiency Oil Furnace1/17/2011
  Q: I am renting an older home and it has a Rudd Deluxe Drum High Efficiency oil furnace. Could you ...
  A: Mell, The horazontal run of the vent pipe shoulden't be more then 12' and it should have an up sloap ...
noisy air handler1/16/2011
  Q: I have an approximately 8 yr. old Rheem classic 90 plus air handler that on startup makes a loud ...
  A: Rick, I don't have a manual on your air handler showing it's blower configuration? It sounds like ...
Troubleshoot Coleman-Evcon Electric Furnace EB15B1/14/2011
  Q: I need help trying to troubleshoot my electric furnace. It is a Coleman-Evcon EB15B, installed ...
  A: Robin, I'm not sure what you have for heat/air conditioning? I don't literature for looking up model ...
suburban rv furnance1/13/2011
  Q: I have 3 wires going to the suburban furnace from the thermostat.The red and white wires are each ...
  A: Rick, I don't have a wiring diagram on your furnace or your thermostat? Wire colors are just for ...
make up air1/12/2011
  Q: formula for make up air for heating systems in basement
  A: Joseph, There are diffrent requirments for diffrent applications with diffrent building ...
phkj024 package unit1/11/2011
  Q: I have a phkj024-1 Goodman package unit with a chromotherm-III Honeywell thermostat. I have my wires ...
  A: William, I don't have a wiring diagram for your unit but there should be one stuck on the inside of ...
Furnace1/11/2011
  Q: I have a Byrant Furnace, 66,000 input BTU- 53,000 output BTU's. Our house is 975 sq ft. 2 bdr, ...
  A: Doug, Is the furnace sitting on the garage floor next to the wall that separates the house from the ...
Elec Furnance Coil Replacement1/10/2011
  Q: Jim - I have a Armstrong Air Furnace / AC that just stopped putting out heat. The unit will turn on ...
  A: Patrick, I don't know what you have for heating your home? Your description is confusing. I suspect ...
York R 410 A Heat Pump1/8/2011
  Q: This unit was installed new in May 2010. I live in S. Cal. Recently heat was needed. The unit would ...
  A: Earl, I don't know from your description what's on and what's off. When a heat pump first comes on ...
Gas Furnace1/7/2011
  Q: I have a gas furnace that's located in the attic and it won't stay on when it gets cold. Its ...
  A: Mike, Try cleaning the flame sensor gently with a piece of emery cloth or fine sand paper. When the ...
removing furnace vents1/6/2011
  Q: I have a two storey 1800 square foot house that initially was heated by gas for the first floor and ...
  A: Karen, First I know absolutely nothing about your master bed room other then in your words it has ...
removing furnace vents1/6/2011
  Q: I have a two storey 1800 square foot house that initially was heated by gas for the first floor and ...
  A: Karen, The way it works is that the exposed areas need to be heated such as the parts of the house ...
Fireplace smoke1/5/2011
  Q: I am renting a house that has the fireplace chimney and the exhaust from the forced hot air heating ...
  A: Steve, There is no way that the smoke from the fireplace is going to get into the furnace air flow ...
no heat amanda1/5/2011
  Q: follow up when i ask for heat blower comes on p/s clicks igniter glows bright no fire and i don't ...
  A: Bob, This is the way it works. First the vent induced draft blower comes on, next the igniter glows, ...
amanda no-heat1/4/2011
  Q: jim ihave a amanda a/c and gas heat spcg24-60 my ignitor glows good i had 24v to the gas valve..no ...
  A: Bob, I don't have a good description of your heating system, model numbers don't help. There are ...
Fireplace smoke1/3/2011
  Q: I am renting a house that has the fireplace chimney and the exhaust from the forced hot air heating ...
  A: Steve, I'm not sure what your calling "the exhaust from the forced hot air heating system"? Forced ...
Electric furnace1/3/2011
  Q: My Nordyne furnace does not turn on occationally. I have to turn my breaker off and back on to get ...
  A: Erin, It sounds to me like your breaker is tripping? Some breakers when they trip don't go to the ...
thermal coupler1/1/2011
  Q: what is the function of a thermal coupler on a furnace? I have a trane thermostat that controls the ...
  A: Dan, I don't what type furnace you have? Older furnaces have a standing pilot light (There is a ...
furnace switches over to A/C12/31/2010
  Q: My furnace keeps switching over to A/C while running and the thermostat seems to be registering ...
  A: Brad, A heat Pump is an air conditioner that reverses it's flow depending on the mode "heat" or ...
propane furnace burners won't stay lit12/31/2010
  Q: what would cause the burners not to stay on when ignited (Trane unit)? Contractor cleaned all four ...
  A: Wendel, I don't know what type of unit you have or how old it is? I don't understand "Unit is ...
old A.C model number12/30/2010
  Q: I have an old Moncrief A.C (central air) probably late 1970's The data plate is missing. My power ...
  A: Gerald' If you can't get any info off of the unit your out of luck. Model numbers change on units ...
Bryant Emergency Heat does not come on12/29/2010
  Q: I have a FA4ANFO42 with Heat Pack KFAEH0301N08 When I put my thermostat in the Emergency Heat ...
  A: Ted, Check the breakers for the electric heat strips, check any disconnect electric switches for the ...
Blower Motor Intermittent12/29/2010
  Q: I have been having an intermittent problem with my 6 yr old Rheem heat pump, air handler in attic. ...
  A: Jim, The motor has a built in thermal overload protector which turns the motor off if it over heats, ...
Heat pump efficiency below 15 Feh12/27/2010
  Q: After reading an article dated 1/7/2006, question by Pat Curran on how/when to use emergency heat, I ...
  A: Jean, Where I live natural gas is the main source of heating fuel. Electric heat costs about four ...
heating unit stays on constantly but house does not get warm12/27/2010
  Q: My Kenmore ckj36-18 heating and cooling unit does not cool in the summer nor heat in the winter I ...
  A: Derrick, I don't have any Idea what a "Kenmore ckj36-18 heating and cooling unit" consists of? I ...
OLD Monogram gas furnace12/26/2010
  Q: I have noticed lately that the fan on the Monogram gas furnace I have doesn't always turn/blow. A ...
  A: Elizabeth, You can squirt a little bit of oil onto the motor shaft where it comes out of the motor, ...
AC repair12/24/2010
  Q: Was wondering if $700 seems right for a service call and to replace compressor on ac unit?
  A: Daniel, When I was active in the business of heating and air conditioning We would install an ...
Venting - Hot Water Gas Heaters12/23/2010
  Q: My old water heater was in small shed that was attached directly to the back of my two story house. ...
  A: Angel, Happy holidays to you also!" I don't know what your calling a "direct vent system"? Just vent ...
No heat12/22/2010
  Q: I have a Lennox 80MGF heater & no heat. I cannot find the ignitor. Do you know how i can get to it ? ...
  A: Desgnr, Let's try it this way. 1.When the thermostat first calls for heat dose the vent induced ...
No heat12/22/2010
  Q: I have a Lennox 80MGF heater & no heat. I cannot find the ignitor. Do you know how i can get to it ?
  A: desgnr, I don't have an owners manual on your "80MGF"? If your talking about a gas forced air ...
thermostat12/21/2010
  Q: I am having a problem with my gas furnace/possibly the thermostat. Unless I turn the thermostat to ...
  A: Pat, Julie, It could be just about anything? A better description of exactly how it act's is needed? ...
american standard furnace12/21/2010
  Q: American Standard Furnace TUD 100948A0 It seems that blower turns on then the pilot glows orange ...
  A: Dan, As you look into the burner compartment on your left side at the burner where the flame burns ...
Flash codes12/21/2010
  Q: I need the flash codes for a 1999 (gas) package unit. I am looking for flash 7 in particular, but ...
  A: Kelli, Some legends are hard to find on a furnace or whatever it is? "gas) package unit" could refer ...
McQuay Seasonmaker SF-44B12/17/2010
  Q: I am in a late '60s condo building. The individual units have the forced-air Seasonmaker units ...
  A: Pat, Again I'm not sure what or how your unit is controlled or wired? The thermostat is usually a ...
R22 air conditioning unit to accompany a rheem classics super quiet 8012/17/2010
  Q: A thief dissembled the air conditioning unit in the back yard of a vacant rental property that I ...
  A: Marcia, I still don't understand what your doing exactly? Your inside unit is a gas forced air ...
McQuay Seasonmaker SF-44B12/16/2010
  Q: I am in a late '60s condo building. The individual units have the forced-air Seasonmaker units ...
  A: Pat, I'm not sure what you've got for a unit but I suspect it's a fan coil unit? Your problem could ...
HVAC Market a scam in 2010?12/16/2010
  Q: I have a 17 year-old GUI 75k BTU Central Air/Gas heat system and I have done some recent shopping ...
  A: Josh, In my opinion all residential heating and cooling units are pretty much equial. Goodman is as ...
Carrier Weathermaker 920012/15/2010
  Q: I have a Carrier Weathermaker 9200 in the past couple of winters I get a code 31, this is an ...
  A: Josh, If the igniter dosen't glow it's either a bad igniter or the induced draft system, You could ...
Carrier Weathermaker 920012/15/2010
  Q: I have a Carrier Weathermaker 9200 in the past couple of winters I get a code 31, this is an ...
  A: Josh, What dose your units legend or literature say "code 31" means? What is the igniter doing? What ...
Em. Heat for heat pumps12/14/2010
  Q: It drops to 25-27 at our florida house on occasion. Will the heat pump provide any useful heat ...
  A: Buirt, Same answer but a different way. It's cheaper to heat with the heat pump then with the ...
Luxaire GY9S - 4 RED FLASHES12/14/2010
  Q: This furnace is 3 years old and has worked fine up until this winter (Dec 2010). It runs for 45 ...
  A: John, OK I guess it matches my answer "it most likely is a limit over heating". You say the filter ...
Em. Heat for heat pumps12/13/2010
  Q: It drops to 25-27 at our florida house on occasion. Will the heat pump provide any useful heat ...
  A: Buirt, When the refrigerator in your kitchen runs the condensing unit underneath pulls air in one ...
Luxaire GY9S - 4 RED FLASHES12/13/2010
  Q: This furnace is 3 years old and has worked fine up until this winter (Dec 2010). It runs for 45 ...
  A: John, I'm not sure of the cycle? I'm assuming from what your saying is that everything is working ...
bryant gas furnace12/12/2010
  Q: i just started using my heater for winter and it seems to heat up ok but when it shuts off it comes ...
  A: Tom, I need to know what the cycle is? Example: The way it should work by it self without any help ...
Rheem split system heat pump - heat?12/11/2010
  Q: I have a Rheem split heat pump system for the 2nd floor. We live in a southern climate so rarely do ...
  A: Dan, It doesn't sound like your electric heat strip/strips are working if there even is any heat ...
colman furnace12/10/2010
  Q: can a down forced air furnace be vented out a side wall of my garage instead of the roof ? vent ...
  A: David, If your furnace is less then 90% efficiency then it needs to be vented up and out the roof. I ...
grandaire heatpump12/9/2010
  Q: ok mygrandaire heatpump frose up last night the outside coils and commpressor everything out side ...
  A: Bobby, I don't know "grandaire heatpump" at least not by that name? Your out side condensing units ...
vent coming out of the gas furnace12/9/2010
  Q: recently i had a fire in the house and it started where the vent comes out of the roof there was a ...
  A: Jeroy, I don't know where in the world your vent was installed when it set your house on fire? The ...
whole house ac12/8/2010
  Q: when the ac unit first turns on the small freon line at the air handler gets hot and the big return ...
  A: Dennis, I'm not sure exactly what you have that your calling "ac unit" If it's a heat pump When in ...
Heat Pump12/7/2010
  Q: It seems that everyone has a different opinion on whether to shut the heat pump off in cold weather ...
  A: David, A heat pump is just an air conditioning condensing unit that reverses the flow when the ...
heat strips12/7/2010
  Q: is it all right to use heat strips only ? Our compressor runs 24/7 when temp is below freezing.
  A: Jerry, The way it should work using a heat pump system is that you set the thermostat to heat, set ...
HVAC vent & flow question12/6/2010
  Q: I am having trouble with temperature & flow to the 2nd floor of my house. One thing I have found is ...
  A: Richard, Three small room's is not a good description as far as heating goes! If I understand you ...
Goodman airhandler willnot turn off12/6/2010
  Q: we have a goodman air handler it will not turn off ,even with the thermostat turned off what should ...
  A: C, When the air handler is running and it won't stop, Take the wire off of the "R" post/posts and ...
furnace problem12/2/2010
  Q: I have just turned on my furnace for the first time this winter and it doesn't blow when the ...
  A: Jeff, I'm not sure what you've got? If you just have a furnace only then you most likely have a ...
No heat12/2/2010
  Q: I have a ranch single level home with a Trane heat pump that is 15 years old. I have had issues ...
  A: Debbie, I don't know what you mean by "cut off" heat pumps work in stages, everything doesn't start ...
HVAC/Cigarette Smoke12/1/2010
  Q: I was searching HVAC and cigarette smoke and an old question on your site popped up. I live in an ...
  A: Jennifer, I have no idea what your heating and cooling unit consists of or how it's installed? You ...
When to Replace an AC / Furnace?12/1/2010
  Q: I have a Carrier 3 ton air conditioning / furnace on the top of the roof that is approximately 20 ...
  A: Marsha, Your roof top unit is like people in that it could die before you even read my answer or it ...
Ultra-max furnace exhaust fan11/30/2010
  Q: I have an Olsen Ultra-Max 2 furnace and the exhaust fan is going out can I still get one from ...
  A: Shane, If your talking about an induced vent draft blower fan try typing in gas furnace induced ...
Gas Heater11/29/2010
  Q: We have a Payne Heater Model 300 UHE-1.We do not have any info. ont the heater. The pilot light is ...
  A: Jim, If your talking a hanging unit heater (no duct work) the same type hanging heater used in ...
Amana heat worked fine then started blowin cold air11/29/2010
  Q: Heat worked fine no problems then turned heat on but it just blows cold air very slow out vent fan ...
  A: Jason, The thermostat calls for heat and the induced vent blower runs when the vent blower runs it ...
Amana heat worked fine then started blowin cold air11/29/2010
  Q: Heat worked fine no problems then turned heat on but it just blows cold air very slow out vent fan ...
  A: Jason, The question is, Dose the igniter GLOW when the thermostat calls for heat? When the ...
Life of boiler11/29/2010
  Q: I have a boiler (gas, hot water heat manufactured by HB Smith or AO Smith?) that was installed when ...
  A: Dave, Your boiler will live as long as the heat/water chamber doesn't break, crack, develop a leak ...
How much air excapes from an open door?11/29/2010
  Q: Jim, Wondering how much air will excape from a open door (airconditioning in the summer). I'm trying ...
  A: Dan, When the air conditioning system is running it blow's and sucks in air at the same time so it ...
Amana heat worked fine then started blowin cold air11/29/2010
  Q: Heat worked fine no problems then turned heat on but it just blows cold air very slow out vent fan ...
  A: Jason, Sounds like everything is working like it should except the furnace burner isn't lighting. ...
Furnace runs 2-3 cycles then stops11/27/2010
  Q: I have a Rheem Imperial 90 plus furnace. It starts and everything works for 2-3 heating cycles Then ...
  A: Norm, When the thermostat calls for heat the first thing that happens is the induced vent draft ...
Oversized Equipment11/27/2010
  Q: We just had the furnace and AC replaced in our home along with all the windows (which included the ...
  A: Steve, I don't know if your going to like the sound of a smaller furnace any better? There is a lot ...
Amana gas heater11/25/2010
  Q: I have a 1988 Amana gas heater, I was told I need new gas valve. I have not been able to find this ...
  A: Kate, Amana doesn't want anyone or any heating company who doesn't belong to there little click to ...
Floor Heater11/24/2010
  Q: I live in a very old house and the floor heater will not turn on. The pilot light is on but, when I ...
  A: Lilly, If your talking about a floor furnace there are some that have electric AC power and some ...
Ideal placement for furnace control11/24/2010
  Q: I just bought a new house. House is 8 years old. Good working furnace maintained on a yearly basis ...
  A: Stephane, Look at it this way If the thermostat is set at 65 in the living room and the basement and ...
Furnace moved & Ductwork Changed11/23/2010
  Q: Jim, I recently had my furnace moved to open up space in an unfinished basement. The Furnace was ...
  A: Richard, You didn't give a furnace size/BTU'S? and I don't know if your in the Antarctic the desert ...
water to air heatpump11/23/2010
  Q: My florida heatpump has a SEER of 12. My 1 HP waterpump has to run constantly when it runs. Best I ...
  A: Clem, Sorry but in my area heat pumps are non existent as far as residential goes. If you have a ...
Gas Heater11/23/2010
  Q: We have a Payne Heater Model 300 UHE-1.We do not have any info. ont the heater. The pilot light is ...
  A: Jim, I don't Keep catalogs/refrence books etc. for looking up model numbers. You need to give me a ...
Furnace11/22/2010
  Q: We have a Rheem Super Quiet 80 furnace. The flame will sometimes only go on for about 5sec and shut ...
  A: Sara, There is a flame sensor in the burner compartment on your left as you look into the burner ...
Re: Time for a new furnace & central air conditioner unit11/21/2010
  Q: What brand central air condioner unit is the best out there?I was given a quote with carrier, ...
  A: Ana, All heating and air conditioning equipment, furnaces, air conditioners are pretty much the same ...
New heating system11/21/2010
  Q: Its time for me to purchase a new Furnace and I was wondering if you would be willing to give me any ...
  A: Mike I don't know what amount of BTU's you need to heat your house? How many output BTU's is your ...
Tempstarr forced air furnace11/20/2010
  Q: my tempstarr forced air furnace at start up will sometimes try to ignite then shut off because it ...
  A: Adam, What I was trying to find out is if when the burners should light dose the first burner where ...
HVAC11/20/2010
  Q: I have recently inspected a home that has smoke damage througout the home. It is evenly spread on ...
  A: Luke, I think it's not soot at all but just ordinary dirt/dust that is in the air, there may be a ...
New heating system11/19/2010
  Q: Its time for me to purchase a new Furnace and I was wondering if you would be willing to give me any ...
  A: Mike, I guess you know what you want? A 2500 sq. ft. house is fairly big for one furnace I'd be ...
Under-Floor Heater Problem11/19/2010
  Q: My house here in the Los Angeles area was built in 1946. The natural gas valve on my under-floor ...
  A: Brian, I have no idea what your talking about when you say "I removed a small plate on the side of ...
Frigidaire Furnace Model # FG6RA 072-12A11/19/2010
  Q: Everything comes on, but is not blowing any heat and is blowing cool air. Air conditioning is not ...
  A: Priscilla When you say "everything comes on" I don't think the burner is coming on or at least if it ...
cold great room11/18/2010
  Q: Just installed a new Rheem, two-stage, 80% efficient gas furnace and 14 new energy efficient ...
  A: Wayne. Now days all furnaces are 80% efficient at least, in your case with a 100,000 BTU 80% ...
rudd siloutte gas furnace11/17/2010
  Q: I have a Rudd furnance gas and changed the gas valvue plus a new igniter. It has three burners the ...
  A: Ron, Is your furnace electronic ignition? Dose the first burner light and then go out? Dose the ...
furnace venting11/15/2010
  Q: I am remodeling my basement and I want to change my furnace venting. It is currently venting up thru ...
  A: Jason, I don't have specifications for researching model numbers. Unless your furnace is a 90+ % ...
boiler heat and central air with heat11/13/2010
  Q: how to hook up thermostat . i have boiler in basement and added central air unit a few years after ...
  A: Brian, Wire colors are just for identification, any color wire will work. For heating primarily the ...
Trane XB80 will not reset, four flashing leds11/12/2010
  Q: I have a Trane XB80 gas furnace and the fan works but the burners don't even try to come on. I had a ...
  A: Paul, I don't know what to tell you? You say "main blower" and you describe something else? I assume ...
Trane XB80 will not reset, four flashing leds11/12/2010
  Q: I have a Trane XB80 gas furnace and the fan works but the burners don't even try to come on. I had a ...
  A: Paul, Dose the vent induced draft blower come on? If the vent induced draft blower doesn't come on ...
Trane XB80 will not reset, four flashing leds11/12/2010
  Q: I have a Trane XB80 gas furnace and the fan works but the burners don't even try to come on. I had a ...
  A: Paul, I don't know what you mean by "jumpered the two dime size switched and the rectangular plate"? ...
Magic Chef Gas Furnace Filter11/11/2010
  Q: I have a Magic Chef gas furnace and am unable to locate the filter. Where shud it be?
  A: Dee, Magic Chef makes all types of furnaces up, down, and horizontal flow. However the return duct ...
air flow ceiling vents and dampers11/11/2010
  Q: I want to install return ceiling vents in the bedrooms (3) - should I use the 6" or 8" round grills ...
  A: Darrell, I was concerned about where the filter was placed? As far as the chase goes with the filter ...
hiring contractor11/11/2010
  Q: with so many hvac contractors around, i am wondering what to look for on the subject of hiring one ...
  A: James, Get a lot of estimates from different contractors. Don't feed any of them information about ...
air flow ceiling vents and dampers11/11/2010
  Q: I want to install return ceiling vents in the bedrooms (3) - should I use the 6" or 8" round grills ...
  A: Darrell, Let me ask a different way. Will all of the return air connected to the main chase pass ...
air flow ceiling vents and dampers11/10/2010
  Q: I want to install return ceiling vents in the bedrooms (3) - should I use the 6" or 8" round grills ...
  A: Darrell, I don't know where your "unit" is? is it in the basement or is it in the attic? How do you ...
Question on pilot light and Thanks!11/8/2010
  Q: I have an Airquest high efficiency furnace that would initially light then go out. After searching ...
  A: Kelly, A yellow flame is too much air mixing with too little gas, the results is a cold flame and ...
furnace11/6/2010
  Q: I have a comfortable furnace about 12 years old it has a mind of it's own lately it will go on and ...
  A: Peggy, I don't know exactly what your thermostat is or what the controls on your particular furnace ...
Heat pump11/3/2010
  Q: I live in a highrise condo, have a Trane heat pump that's about 30 years old but was essentially ...
  A: Steve, If your unit is working, cooling and heating ok there is nothing to say it wont continue to ...
Heat pump11/3/2010
  Q: I live in a highrise condo, have a Trane heat pump that's about 30 years old but was essentially ...
  A: Steve If it works everything is ok. You should know how to change the filter and change it every 30 ...
Furnace - no gas11/3/2010
  Q: I have a Goodman gmpn 100-4 gas furnace purchased in 1993, I believe. The blower will start, the ...
  A: Mike, The way it works, the inducer blower goes, the ignitor glows. the gas flows, the ignitor ...
Central AC makers11/2/2010
  Q: Jim, I am replacing a 10 year old Rheem central unit with a heater for a 2000 sq. ft home in S ...
  A: Frank, I don't think there is any big difference between brands if you compare the same components. ...
Horizontal Venting Gas Furnace10/29/2010
  Q: How close does the furnace need to be to the exterior wall in a full height basement. in order to ...
  A: Chris, The building department that governs your area has there own building code in regards to ...
electronic ign gas furnace won't start10/29/2010
  Q: I have a Ruud Deluxe 90 Plus gas furnace model UGEB-12EE-JS, 125,000 btu, just over 10-11 yrs old. ...
  A: Shane, Power won't go to the gas valve (24 volts) unless the igniter glows. Now that the igniter ...
heat pump vs airconditioner10/27/2010
  Q: Have 13 year old trane weathertron heat pump in Southern Fla. Looking to replace with new system. ...
  A: Robert, A heat pump is just an air conditioner that runs in reverse. You can save $ when heating ...
Weathermaker DX Not Starting10/26/2010
  Q: Hope you can help me out on this. Our Carrier Weathermaker DX was installed in 91. Turned on the the ...
  A: Robert, Your furnace is a down-flo/counter-flow. Leave the blower compartment cover/doors in place, ...
Weathermaker DX Not Starting10/26/2010
  Q: Hope you can help me out on this. Our Carrier Weathermaker DX was installed in 91. Turned on the the ...
  A: Robert, I don't know what type of furnace a "Carrier Weathermaker DX" is? Up-flow down-flow ...
Furnace Upgrade (in basement)10/25/2010
  Q: Some contractors tell me I only require an 80% efficiency furnace while others recommend 95%. The ...
  A: Fran, Your existing furnace is 80% efficient. The 100,000 is the input, the 80,000 is the output ...
Armstrong Ultra 90 II10/24/2010
  Q: The last time we had our furnace (an Armstrong Ultra II 90, EG6F series) repaired, the tech told us ...
  A: James, I don't know what you got? When your looking for a part you need to get the information off ...
Furnace Upgrade10/23/2010
  Q: Some contractors tell me I only require an 80% efficiency furnace while others recommend 95%. The ...
  A: Fran, If you have an 80% now and it's doing the job don't fix it. I don't know all of your home ...
location of adjustments for burner and pilot flames10/23/2010
  Q: I need to adjust burner flame and pilot flame on a 20+ year old, standing pilot, propane gas furnace ...
  A: Justplumducky, I don't have anything on your furnace like an owners manual but if there is a ...
Carrier heat pump operation10/23/2010
  Q: My 3 yr. old heat pump goes into defrost mode about every other cycle. I have observed as many as ...
  A: Joe, Different defrost controls for different makes models, even different defrost controls for same ...
Century Conquest 80 Not staying lit10/22/2010
  Q: Jim: We too have a Century Conquest 80 gas furnace. It doesn't stay lit. The induction motor comes ...
  A: Owen, When the burner lights the frame needs to burn onto the flame sensor, the flame sensor needs ...
Furance Filter10/22/2010
  Q: Ok, got a dumb question for you...I have a Gaffers & Sattler S 80 FEF which I'm just trying to ...
  A: Brian, The filter goes on the inside of the blower compartment, the return air duct attaches on the ...
Gas boiler not working10/20/2010
  Q: I have a residential gas boiler system for heating my home. My pilot stays lit but the safety valve ...
  A: Frank The pilot flame should be blue and engulf the thermocouple element, the covers for the burner ...
Sparking Low Voltage Wires10/19/2010
  Q: I am diagnosing an American Standard heat pump that is from 1993. She said it worked great during ...
  A: Gabriel, I don't know what your thermostat is? you need to look at a wiring diagram, air handler and ...
Removing an unneeded duct10/18/2010
  Q: We are doing some remodeling in our home and need to remove an unused duct. I want to do this right ...
  A: Cathy, Remove as much of the duct as needed to get it out of your way and cap the opening off with a ...
Central A/C Heat Pumps--Best?10/18/2010
  Q: Going to replace our Payne/Goodman 10seer system. Got 2 quotes...Amana and York. The Amana is a 15 ...
  A: NeedHelp, I would use Goodman myself, Better avalibility for parts and service in my area, I would ...
Black Soot10/18/2010
  Q: I am hoping you can give me some ideas here. We seem to have a black soot problem. It is on the ...
  A: Terri, I don't know what you have going on there? I think your description "Black Soot" is ...
Central A/C Heat Pumps--Best?10/17/2010
  Q: Going to replace our Payne/Goodman 10seer system. Got 2 quotes...Amana and York. The Amana is a 15 ...
  A: NeedHelp, York, Amana,are both high price names. Amana 15 Seer and Yorks 18 Seer is no better then ...
Payne Forced Air Heater Not Working10/16/2010
  Q: My Payne forced air heater 115,000 BTU, is not working today, worked yesterday. Was installed in ...
  A: Larry, If the inducer fan doesn't run nothing else on the 24 volt control circuit will run. You most ...
15 seer in A Doubewide10/15/2010
  Q: I own a doublewide and would like to have a 15seer American Standard unit. The contractor advised 13 ...
  A: Susan, I don't know what your options are as far as installations go? "SEER" is just a rating of how ...
Inducer Assembly has a crack?...10/14/2010
  Q: Hey there!! SO excited to see you are knowledge on heating and Air. I just had a service man come ...
  A: Zulaine, there are different "inducers" for different furnaces. You didn't say if your furnace was ...
FAN always on10/13/2010
  Q: I have a heat pump system for heat and air. Our bill is extremey high - thermostat is set at 78 ...
  A: Gary, Is it your habit to shut the bedroom door? if so you need to leave the door open about 1" or ...
FAN always on10/13/2010
  Q: I have a heat pump system for heat and air. Our bill is extremey high - thermostat is set at 78 ...
  A: Gary, I don't know what type thermostat you have? if it's heating and cooling is should have a fan ...
gas heater10/12/2010
  Q: I have a gpmn100-4 gas heater. It ignites but does not stay lite. I had a service person fix it last ...
  A: Richard, There are hundreds of different gas furnaces, What's a "gpmn100-4"? The problem your ...
Replacement AC system .10/11/2010
  Q: Our AC/Heat Pump has failed and we are getting quotes for a new system. We have been told that we do ...
  A: Mike, It doesn't matter how many returns there are in the house! what matters is the total square ...
Armstrong Ultra II 90 High Efficiency Won't Ignite10/10/2010
  Q: I have a Armstrong Ultra II 90 High Efficiency furnace that will not ignite the pilot light and ...
  A: Andy I'm talking about the "PVC" exhaust duct that goes to the outside from the fan, and also the ...
Armstrong Ultra II 90 High Efficiency Won't Ignite10/10/2010
  Q: I have a Armstrong Ultra II 90 High Efficiency furnace that will not ignite the pilot light and ...
  A: Andy, I don't know how they ran your vent to the outside or if your getting your fresh air from ...
Replacing Rheem thermostat with Lux TX9100E10/10/2010
  Q: I have an older Rheem thermostat I want to replace with a programmable Lux TX9100E. I'm not ...
  A: Tony, I would have to know what the thermostat is controlling. I would have to see a wiring diagram ...
Lennox Furnace10/9/2010
  Q: I just purchased a foreclosed home and am having problems with my Lennox furnace. It seem that when ...
  A: Janice, When the thermostat first calls for heat the first thing that should happen is that the ...
central10/7/2010
  Q: turn on central heat.runs 7 to 10 seconds and burner cuts off.removed and checked flame ...
  A: James, I Would say that ten seconds might be a little long for a flame sensor it self to be the ...
Goodman A/C Air Handler10/7/2010
  Q: Air handler fan/blower wont stop running/blowing. Even after a/c therm is turned off completely, ...
  A: John, when the blower wont stop disconnect the "R" post wire from the thermostat to make sure it's ...
Janitrol Heater home10/7/2010
  Q: During yearly inspection,I was told coils are rusty and some referigerant leaking. Unit 10 years ...
  A: Bonnie, I don't know exactly what your setup is? All I can tell you is that coils don't rust. I'm ...
central air vents in bathrooms10/6/2010
  Q: We installed our central air 2 years ago and the installers did not recommend vents in our bathrooms ...
  A: Jennifer, "Increase in fungal exposure" That's a new one on me? Your description "central air" ...
Kenmore fridge smell10/6/2010
  Q: Once in a while there is a slightly irritating odor that is given off from our Kenmore fridge. The ...
  A: Terry, I'm not a "Kitchen Appliance Person" but I suspect that it has something to do with the self ...
Armstrong Ultra II 90 High Efficiency Won't Ignite10/5/2010
  Q: I have a Armstrong Ultra II 90 High Efficiency furnace that will not ignite the pilot light and ...
  A: Andy, When your furnace calls for heat the first thing that happens is that the vent induced draft ...
How to ignite the gas furnace10/4/2010
  Q: I have Amstrong Ultra V Tech 80 gas furnace, 9 yrs old. It worked fine last winter. Now I can not ...
  A: Ida, The pilot is in the burner compartment, when the thermostat calls for heat the igniter glows ...
bolt-on dripping pan leaking10/4/2010
  Q: This bolt-on dripping pan for the air handler is leaking water. Fortunately, the unit sits over the ...
  A: Warren, I never seen anything like your set up, anyway it's hard to tell from the picture. If your ...
Goodman Furnace10/3/2010
  Q: I just turned on the heat for the first time this fall. I ran the central air during the summer a ...
  A: Janice, I don't know what "The coil doesn't kick on" means? I don't know if your furnace has an LED ...
Goodman Furnace10/3/2010
  Q: I just turned on the heat for the first time this fall. I ran the central air during the summer a ...
  A: Janice, If the igniter glows but the burner doesn't light the gas valve isn't opening, or the gas ...
Air handler condensate pan10/2/2010
  Q: I have an amana model # chf42tcc air handler. My air conditioning/fan stopped working. I went up to ...
  A: Jim, I'm confused? I don't have resources for looking up model numbers. I assumed you were talking ...
Air handler condensate pan10/1/2010
  Q: I have an amana model # chf42tcc air handler. My air conditioning/fan stopped working. I went up to ...
  A: Jim, There shouldn't be water in the condensate drain pan that is outside of the unit, The primary ...
Return and heat out ducting diameters9/30/2010
  Q: I have the PHILCO MODEL#G6RA060C-12 GAS FURNANCE and would greatly appreciate info for return and ...
  A: Steve, I don't have anything at my finger tips for researching model numbers on all of the various ...
Tempstar gas Furnance9/30/2010
  Q: My tempstar gas furnace blower motor won't stop running the gas valve flame is very high the furnace ...
  A: Nelson, If your furnace has a "fan limit" switch, the fan switch operates on and off by way of the ...
bolt-on dripping pan leaking9/29/2010
  Q: This bolt-on dripping pan for the air handler is leaking water. Fortunately, the unit sits over the ...
  A: Warren, The drip pan is something that somebody congerd up in there mind, It's not an every day part ...
Exhaust smell in the house9/29/2010
  Q: With in the last week the house has had the smell of car exhaust. The house has central air and ...
  A: Neal, If you have a carbon monoxide detector in the house you should be able to tell if that's what ...
a/c unit9/24/2010
  Q: when i turn on ac ,it will run for about 15-20 minutes cool air and all but then fan on outside of ...
  A: Rodney, I think you answered your own question? I think the outside condenser fan motor is running ...
Carboard ducts9/23/2010
  Q: I recently had central air and duct work installed in my house that is heated by a boiler (hot water ...
  A: Tom, I don't know what the normal is for your area? Where I'm at I never used cardboard or seen any ...
outside ac powersource buzzing.9/22/2010
  Q: I am able to hear, what seems to be an electrical type buzzing, inside the wall of our home. It ...
  A: Efrain, Turn the 220 breaker off that feeds the outside unit and see if the noise goes away? Can you ...
Gas furnace9/21/2010
  Q: Furnace will not stop heating. Have replaced t-stat, dosconnected t-stat wires; still keeps heating. ...
  A: Mike, If you disconnected the thermostat wire that connects to the "R" post on the thermostat and ...
Cool and Heating???? Whole House Fan????9/21/2010
  Q: I have a two story A Frame home where the upstairs gets extremely hot during summer. The ...
  A: Bill, A whole house fan or any type of exhaust fan that you install needs to have an air supply of ...
coil in air handler leaks9/21/2010
  Q: our unit is around four years old or less,but this the third coil to be replaced.it is developing ...
  A: Bobby, I'm sorry but this is all new stuff to me? I'm retired and haven't really kept up with new ...
coil in air handler leaks9/20/2010
  Q: our unit is around four years old or less,but this the third coil to be replaced.it is developing ...
  A: Bobby, I don't know of any such machine that you hook to the phone to check air in the house? sounds ...
Lenox A/C condensation problem9/19/2010
  Q: I have a Lennox G40UH-60C-110-14. It is 4 years old. About a month ago I noticed the unit would not ...
  A: Tim, The drain lines should be 3/4" rather then 1/2". The drain line that runs to the "guest ...
Lenox A/C condensation problem9/19/2010
  Q: I have a Lennox G40UH-60C-110-14. It is 4 years old. About a month ago I noticed the unit would not ...
  A: Tim, When somebody gives me a make and model number I don't know what it is without going into a ...
heat pump condensor fan runs continaully on heat mode9/18/2010
  Q: I had problem last yr with my heat pump coils freezing up. While trying to defrost yep i poked a ...
  A: David, A heat pump is an air conditioner with controls that allow the air conditioner to reverse ...
Rheem RGPH-10EAMER9/15/2010
  Q: I have a Rheem RGPH-10EAMER gas furnace, the unit's burners will not turn on. There is 1 solid light ...
  A: jamah, I don't have a manual for "Rheem RGPH-10EAMER"? You need to tell me what it is such as "80% ...
Blower won't shut off.9/14/2010
  Q: I'm working on an older Miller (20 to 30 year or more), upflow, mobile home furnace. Standing pilot ...
  A: Ducky, The "control box" is a Fan-Limit switch. There are a few different types of fan,limit control ...
Air Conditioner9/9/2010
  Q: ! My problem is my two plastic pipes on the back of my house is leaking real bad from the air ...
  A: Stacy, Very confusing? It sounds like a condensate drain line? Usually a condensate drain line ...
kitchen exhaust duct9/8/2010
  Q: is there any other way to prevent outside air/smoke coming from the exit side of your kitchen ...
  A: Sean, The way you describe the common exhaust duct being used by other tenants has got to be the ...
Thermostat9/7/2010
  Q: I am changing out a Rheem thermostat for a Honeywell.The Wiring is different.I have 3 wires and ...
  A: Lea, I have no idea? There are hundreds of diffrent type thermostats, wire colors are just for ...
Rheem Blower Motor will not turn on9/7/2010
  Q: I have a Rheem Classic 90 Plus Series Contour Furnace and the blower motor will not run. The A/C ...
  A: Sandro, I don't have a manual on your "Rheem Classic 90 Plus Series Contour Furnace" the terminology ...
Swimming pool Airconditioninig9/7/2010
  Q: I am working on a project(In MIDDLE EAST) involving an indoor swimming pool space that is enclosed ...
  A: Joseph, I don't know anything about the area that the pool is in or going to be in ("MIDDLE EAST") ...
Rheem Blower Motor will not turn on9/7/2010
  Q: I have a Rheem Classic 90 Plus Series Contour Furnace and the blower motor will not run. The A/C ...
  A: Sandro, If the blower motor is getting power it will run unless the motor is faulty. I'm not ...
HVAC9/4/2010
  Q: I need to replace my 19 year old Trane air conditioning and furnace system. The owner/salesman ...
  A: Patrica, Your existing furnace won't loose anything in the way of the amount of BTU's it produces, ...
HVAC9/3/2010
  Q: I need to replace my 19 year old Trane air conditioning and furnace system. The owner/salesman ...
  A: Patricia' With an 80,000, 95% efficient furnace 5% of the gas your paying for to heat with is ...
Tappan Split system Heat pump9/2/2010
  Q: Tappan model FT3BA-030KA heat pump will not maintain temperature settings and runs constantly until ...
  A: John, If the unit is low on refrigerant it won't cool properly or not at all depending on how low it ...
furnace w/no cold air return hooked up.9/1/2010
  Q: I have a forced air furnace witch is located right next to a water heater with a standard gravity ...
  A: Bill, First let me say your damn lucky that you wake up with a headache, the odds are that you won't ...
gas furnace9/1/2010
  Q: I need to replace a gas furnace. My wife is sensitive to noise, and the unit we have has the cold ...
  A: Kent, The air blowing out of your unit is the supply air. The air going into the unit is the make up ...
gas furnace9/1/2010
  Q: I need to replace a gas furnace. My wife is sensitive to noise, and the unit we have has the cold ...
  A: Kent, Most of the noise you hear is air noise caused by the air moving through the return air grill ...
Refrigerent Lines for new system8/31/2010
  Q: I need to have a new Air Conditioning unit installed in my Townhouse in North Texas. The air ...
  A: Diane, A 2 or 2-1/2 ton condenser or cooling coil have two refrigeration lines, both use 3/8" liquid ...
air conditioner8/30/2010
  Q: My air conditioner is 10 years old and compressor is five years old. Condenser/compressor is outside ...
  A: Tracy, There should be a service disconect switch at the outside unit that allows the service person ...
AC water drips, yet small pump is working8/29/2010
  Q: Bryant/Carrier Weatherbeater 9200 work great (install suspended on it's side above ceiling). A ...
  A: Dennis, I think your unit has a plugged up drip pan/connection or a plugged drain line that's ...
exhaust piping for furnace8/28/2010
  Q: I need to know what type of outside piping i would need to hook up to my fuel oil furnace. My ...
  A: Tina, You need a "Type A metal vent pipe". Check this web site for information. ...
central air flow8/28/2010
  Q: we have a two story house my hubby room is over the garage and water heater inthe garage well it's ...
  A: Churita, Maybe there could be a lot of reasons? Your air system is your air system. I have no ...
Connect Furnace and Water Heater8/27/2010
  Q: In my garage I would like to connect my gas water heater exhaust using 4” vent pipe into a wye above ...
  A: Dennis, It depends on the furnace type, water heater type. If your furnace has an induced draft vent ...
microhood venting8/26/2010
  Q: We are replacing a range hood with a microwave hood on an exterior wall. The former range hood ...
  A: Michelle, I don't know exactly what have for thickness of the wall or if the new hood will cover the ...
goodman air handler remove motor frm squirrel cage8/26/2010
  Q: I am trying to replace my airhandler motor. How do I get the motor free from the squirrel cage? ...
  A: Carolyn, Good question, I have been in the same pull your hair out predicament many time's while ...
central air flow8/26/2010
  Q: we have a two story house my hubby room is over the garage and water heater inthe garage well it's ...
  A: churita taylor, I'm not sure what your problem is? Is it the air flow is unsatisfactory or the air ...
Drip pan from A/c8/24/2010
  Q: We recently had a problem with our a/ac in our rental house.We called our landlord to get a ...
  A: Sharon, I'm not sure which drain pan your calling cracked or even what type of a drain pan it is? ...
Low Flow A/C8/24/2010
  Q: I have central air conditioning in my home. Upon recently turning it on, I noticed that most of the ...
  A: Jeff, When air blows out of the supply registers into an area it also has to have a clear path so it ...
Low Flow A/C8/24/2010
  Q: I have central air conditioning in my home. Upon recently turning it on, I noticed that most of the ...
  A: Jeff, Air encounters a static pressure/resistance that decreases the air flow due to length and ...
Condenser unit cuts off periodically8/23/2010
  Q: I have a Goodman pad-mounted condenser unit that periodically will just stop working. The unit ...
  A: Jonathan, You have a compressor unit in the condenser unit also what dose it do? If your condenser ...
central air conditioner compressor shot8/22/2010
  Q: Eager-to-sell-new-units guy told me the compressor,age 15, is shot. Keeps asking about my furnace, ...
  A: Lisette, Anything you run that's electric is going to cost something. Anything that moves is subject ...
Rheem Classic Seer 10 Air Conditioner8/22/2010
  Q: My air conditioner unit outside my home is 8 years old. Just yesterday it stopped working. I stand ...
  A: Tom, The click your hearing is when the thermostat in the house activates the contactor in the out ...
Condensation Overflow?8/22/2010
  Q: I've got a gas furnace/AC in my basement. Where the ductwork starts, on top of the unit itself, ...
  A: Kirk, Take the drain line loose as close to the drip pan drain connection as you can, blow it out ...
Excessive condensation under Mobile home.8/20/2010
  Q: Good afternoon! While tracing a cable line underneath our dblwide, noticed excessive condensation on ...
  A: Dave, I don't follow you about "on the insulation backing. Not localized, from end to end and side ...
HEAT PUMP NOT COLDING8/20/2010
  Q: Newly installed Goodman heat pump and new ADI evaporator coil comes with TXV. The installer did not ...
  A: Seth, I don't know what the small bag of stuff is? The bottom line is that the system should work. I ...
Correct furnace btu size8/20/2010
  Q: Tucson AZ 1956 1700 Sq ft brick home. Gets cold here in winter. Present furnace is Rheem 100K btu ...
  A: Richard, My perceptual handicap kicks up once in a while, Sorry. With a 105 95% your still going to ...
Correct furnace btu size8/19/2010
  Q: Tucson AZ 1956 1700 Sq ft brick home. Gets cold here in winter. Present furnace is Rheem 100K btu ...
  A: Richard, Your getting 80,000 BTU's to heat your home now. If you get a 90,000 at 95% you'll get ...
correct MERV for my home AC unit8/19/2010
  Q: I have a ton and a half unit for a small house, I was told by the AC technician that it is marginal, ...
  A: Nick, OK I miss understood the first time around. The filter your using now only lets 50% of the ...
correct MERV for my home AC unit8/18/2010
  Q: I have a ton and a half unit for a small house, I was told by the AC technician that it is marginal, ...
  A: Nick, A 15x20 has a face area of 300 square inches if you stick a 1" filter in that opening you cut ...
condensation leak8/18/2010
  Q: after compressor replacement downstairs inside unit leaks tremendous amounts of condensation into my ...
  A: Mark, When the air conditioning system is running properly it's going to condensate, if it doesn't ...
A/C drainage8/18/2010
  Q: I live in a three story condo. The a/c unit is in the ceiling on the second story. I have a drainage ...
  A: Erica, AC units don't come with drain lines attached, from the condensation drip pan connection to ...
A/C Not Keeping Up8/18/2010
  Q: We have a small rancher house that is only 1,300 sq ft and our 2.0 BTU a/c had been working fine in ...
  A: Sam, Feel the large refringent line that goes between the compressor/condenser and the cooling coil ...
Gibson vs Trane8/17/2010
  Q: After 15 years my York HVAC gave up. Leaking pan, furnace issues, etc. The tough part is which brand ...
  A: Rich, All heating and cooling equipment is pretty much equal as far as quality goes as long as you ...
Outside Air Conditioner8/16/2010
  Q: Outside Temp. in area increased, may or may not be part of the problem. Fan on unit comes on and ...
  A: Dan, I think the fan motor is shutting of on a built in thermal overload protector desighned to shut ...
air conditioner condensation line(s)8/16/2010
  Q: I have a two story home with a unit for each floor. The top floor has a condensation line coming out ...
  A: Bob, I'm assuming that the problem "unit" is in the attic? If my assumption is right the drain that ...
a/c repair8/15/2010
  Q: I have a rental home in Las Vegas and the 3 ton split system a/c central unit had a leak repaired at ...
  A: Robert, Are you saying "The repair company" charged you $50 per pound for just the freon over and ...
Outside HVAC fan/airflow8/14/2010
  Q: Atlanta 90 degrees each day. Upstairs A/C turned off by itself one afternoon and would not turn ...
  A: Gregory, Your two ton unit should exhaust air out of the condensing unit just like the five ton unit ...
Outside HVAC fan/airflow8/13/2010
  Q: Atlanta 90 degrees each day. Upstairs A/C turned off by itself one afternoon and would not turn ...
  A: Gregory. The fan blade should rotate clockwise, the air should exhaust up with some force, If the ...
Outside HVAC fan/airflow8/13/2010
  Q: Atlanta 90 degrees each day. Upstairs A/C turned off by itself one afternoon and would not turn ...
  A: Gregory, Do you have a split or self contained unit. Are you having trouble with your outside unit? ...
air conditioner and cheap landlord8/12/2010
  Q: help,.we have an old small carrier unit in our two br condo, it quit cooling,and our landlord has ...
  A: Kenny, Are you saying that the air flowing out of the supply registers is normal, pretty much like ...
a/c with boiler?8/12/2010
  Q: I recently purchased a house with a boiler/baseboard heating and wanted to add a/c to it. Is this ...
  A: Daniel, A central refrigeration type air conditioner can utilize an existing forced air heating ...
Payne AC Unit8/11/2010
  Q: I have tried to find the compressor reset button all day. Do you know where I can find it? The ...
  A: Stephanice, There is no reset button. I assume your talking about the outside unit fan not starting? ...
Venting8/10/2010
  Q: I have what I hope is a simple question. I have a gas furnace and I have two fresh air vents up ...
  A: Scott, I don't follow you at all, not even close? To me a fresh air vent is something that brings ...
decreased AC air flow8/10/2010
  Q: I have a 17-year-old Trane HVAC unit in our 1,400 S/F home in north Texas that isn't moving much ...
  A: Tony, The outside condensing unit that mainly consists of the compressor and the condensing coil and ...
decreased AC air flow8/10/2010
  Q: I have a 17-year-old Trane HVAC unit in our 1,400 S/F home in north Texas that isn't moving much ...
  A: Tony, It sounds like your cooling coil might be freezing over from lack of air flowing through the ...
Heil Heat Pump Runs Incessantly. Does not respond to t-stat.8/9/2010
  Q: We have an 8-10 year old Heil unit outside. The unit started running continually until the temp ...
  A: Sam, Disconnect the wire on the R post and the Y post of your thermostat, twist the two wires ...
line set replacement8/9/2010
  Q: greetings, ....new here so i will jump right in and ask a question.... ...i have a 1 - 11/2 ton ...
  A: Paul, I don't have spec sheets on all the hundreds of different makes and models. 3/8" liquid and ...
Trane XE60 air conditioner/heat pump8/8/2010
  Q: I have a Trane XE60 that will power on but it's dead. I've tried to turn the fan on manually by ...
  A: rachelle, I'm not sure what "will power on but it's dead" means? Wire colors are just for ...
AC/Heat Unit Ductwork lying on the ground, Memphis8/8/2010
  Q: I just bought a new central AC/Heat package unit. It replaced an old similar unit that was built in ...
  A: Lana, I'm recommending a sump pump that is down below ground level in a casing with a 110 electric ...
AC/Heat Unit Ductwork lying on the ground, Memphis8/7/2010
  Q: I just bought a new central AC/Heat package unit. It replaced an old similar unit that was built in ...
  A: Lana, I don't live in Memphis and Memphis code doesn't apply to the rest of the country so I can't ...
retro-fitting dutcless home with AC8/5/2010
  Q: I have ranch home that has around 1600sq ft on the main floor. We have radiant baseboard heating, ...
  A: Matt, I think installing the air handler in the attic is the logical answer. The only draw back is ...
A/C unit to Heat Pump8/5/2010
  Q: The in-law apartment attached to our house has central air with a Carrier outside unit. The air ...
  A: Robert, The outside unit is the air conditioner and the heat pump. The inside attic unit is the air ...
Vent Cover Direction8/4/2010
  Q: I am having a new air conditioning unit placed in my home. I had two people give me quotes. During ...
  A: Larecia, I don't know where your Vents are located, floor, wall, ceiling, Inside, wall out side ...
cooling & heating replacement8/1/2010
  Q: House was built in 1956, SQFT 1750. I want energy efficiency and take advantage of tax credit. 4 ...
  A: Julia, I don't know much about your present system? Furnaces installed in different locations in ...
Split system not cooling all the time8/1/2010
  Q: Mr. Barnhart, I have a 14 year old 5 ton carrier unit. Three months ago the Millen./Scroll comp. ...
  A: Darren, My only advice at this point would be for you to get a fresh new opinion form the most ...
compatible replacement for AC unit7/31/2010
  Q: I have a York Stellar condensing outdoor unit model #H2DA048S06A. Would like to know what is ...
  A: David, I have no idea what your unit is exactly, It sixteen years old, where am I going to find ...
Mismach 3.5 ton air handler with 4 ton heat pump7/30/2010
  Q: We ended up purchasing a house with a 4 ton 14 seer R-22 heat pump and a 3.5 ton evaporator coil in ...
  A: Tom, You need to to have a compatible condensing unit with a compatible air handler and evaporative ...
Air Conditioner Shutdown7/30/2010
  Q: I have a Coleman Central Air and Gas Furnace. If I set the thermostat to shut the air conditioner ...
  A: Dennis, Sounds like the thermostat, but it could also be in the wiring. Take the wires that come out ...
New Trane XR95 Installation7/28/2010
  Q: Trane technician installed and vented new XR95 furnace with new PCV pipe to the outside of home. ...
  A: Tony, It's kind of hard to explain, let me try it this way. There shouldent be any openings from the ...
cooling & heating replacement7/26/2010
  Q: House was built in 1956, SQFT 1750. I want energy efficiency and take advantage of tax credit. 4 ...
  A: Julia, I think all manufactures heating and cooling equipment is pretty much equal in quality, ...
Home AC unit stops cooling7/26/2010
  Q: NOTE: Unit (Trane, electric heat/ac) has been checked over twice: All parts found to be operating ...
  A: Adam, When the air passes through the cooling coil it should cool down about twenty degrees directly ...
Home AC unit stops cooling7/25/2010
  Q: NOTE: Unit (Trane, electric heat/ac) has been checked over twice: All parts found to be operating ...
  A: Adam, I'm not sure what you mean by "Unit stops cooling" Dose that mean the unit stops, or dose it ...
central air unit wont turn off7/25/2010
  Q: I live in Ohio. I have noticed lately that my a/c unit runs constantly. I can change the thermostat ...
  A: Doug, What about the inside unit dose it ever stop running? When the thermostat calls for cooling ...
rooftop air conditioner7/24/2010
  Q: the unit turns on but doesn't blow, went up to roof and it looks like the compressor is not turning, ...
  A: Monique, If the unit is a self contained unit, everything in one unit, no inside unit? You could ...
Trane xl 11007/24/2010
  Q: My ac is an outside unit,not a split unit.The air will blow good and cold for about 2 hrs at a time ...
  A: Wayne, If your saying the blower that blows air out of the supply vent's just stops prematurely? I ...
Float Switch7/23/2010
  Q: If a float switch is installed in a air conditioning system's drain pan in an attic. How long does ...
  A: Robert, The float switch is running properly for the way it's wired. The way it's wired will stop ...
Float Switch7/23/2010
  Q: If a float switch is installed in a air conditioning system's drain pan in an attic. How long does ...
  A: Robert, It should shut down the system instantly when the float rises enough to trip the switch. ...
Small wires on outside of A/C unit7/23/2010
  Q: While weed eating I got my weedeater caught up in the small wires on the outside of my central A/C ...
  A: Pat, I'm not sure what you've got going with your unit? "I can hear the unit running but the unit ...
Coleman central air unit in modular home7/22/2010
  Q: Where do i find the drip pan on a Coleman central air conditioning unit? There has been water coming ...
  A: Gayle, Assuming your utility room is on the main floor not in the basement, if the supply air blows ...
Coleman central air unit in modular home7/22/2010
  Q: Where do i find the drip pan on a Coleman central air conditioning unit? There has been water coming ...
  A: Gayle, Wherever the drip pan is depends on where the "Coleman central air unit" is installed in your ...
Ac outdoor unit Trane 800XE7/21/2010
  Q: My unit works great sometimes. During the day it will actually stop blowing cold and just blow ...
  A: Cathy, I understand it's a Trane unit, Trane has a few hundred different types of units. I ...
Air Conditioning Unit7/21/2010
  Q: Our air conditioner was replaced by company "B" seven years ago. Recently the renters informed us ...
  A: Pat, I could spend the better part of the day trying to get a description of a "Fraser Johnston ...
HVAC Cooling & Noises7/20/2010
  Q: I have a two story Florida home built in 2001 with the original Bryant, split unit, gas furnace, 4.0 ...
  A: Javier, I don't know what the noise thing is? I don't have any experience with pressure cookers so ...
HVAC Cooling & Noises7/20/2010
  Q: I have a two story Florida home built in 2001 with the original Bryant, split unit, gas furnace, 4.0 ...
  A: Javier, Installation and sizing of ducts, placement of grills registers and diffusers has a lot to ...
Air conditioner not cooling7/20/2010
  Q: I came home today and my house was very hot . . . the AC was running but not cooling. I checked the ...
  A: Al, You didn't furnish a whole lot of information about what your calling "AC, furnace" like it's ...
a/c / coils7/19/2010
  Q: I just replaced a High Efficiency 5000 model # ca5536vka1 condenser 3 ton with a York model # ...
  A: Dan, SEER is a rating for electric use to operate the unit, 13 being the most costly to run, I don't ...
negative pressure or normal7/18/2010
  Q: With A/C on, air handler fan running, and gas water heater is running, I'm good with flow of air ...
  A: Tom, Heats rises and cold drops, if the heat at the bottom is stronger then the cold at the top the ...
Question re size of ac unit...7/17/2010
  Q: I have a Goodman GSC130361DE ac unit for my 2100sq ft home. The unit/house are two years old and ...
  A: Senia, You should never have to add "freon" unless it leaks out or it's let out, and of course it ...
Heating7/17/2010
  Q: The return air flow vent for my central heater is located in the hallway cupboard. This cupboard ...
  A: Katherine, I don't know where your "central heater" is installed in the house, I don't know what it ...
wiring diagram bryant a/c7/16/2010
  Q: contactor is pulled in but comp. nor cond. fan won't run ANSWER: Jim, The contactor pulls in with ...
  A: Jim, Check on from the contactor ton see where the power fails on both legs to the motor and to the ...
corroded coils on my air handler7/16/2010
  Q: I have a 6 mos old and a 7 yr old who are sick every other week, I also was told 3 yrs ago that the ...
  A: Jacquie, I never knew of any one getting sick from corroded coils? Refrigerated air conditioning is ...
dual zone central a/c7/15/2010
  Q: I have 1 unit outside and two thermostats. a dual zone unit. the 2 damper controllers or baffles for ...
  A: Andrea, Yes you can have the zone system removed completely and just heat or cool the entire house ...
A/C (central unit) No longer blowing out air7/14/2010
  Q: Last night, I noticed a funny smell blowing out of the vents kind of like a pool-floatie smells, or ...
  A: Jennifer, The outside unit is an air conditioning condensing unit, if the outside unit runs and ...
upgrading hvac7/14/2010
  Q: I currently have a 2.5 ton unit (installed in 1994)servicing my upstairs. It runs all the time and ...
  A: Sonya, I'm not sure what you have for an inside unit? Is it a heat pump, gas furnace, or just an air ...
Safety switch on condensate pump7/13/2010
  Q: Condensate pump on my HVAC gave up. I bought Little Giant VCMA-15ULS tried connecting the safety ...
  A: Dilip, I don't have any schematic on your furnace or your condensate pump? I don't know what you ...
RUUD Heat Pumps7/12/2010
  Q: We currently live in a 3600 sq foot home with a total of 3 RUUD heat pumps for our heat and ac. One ...
  A: Sandy, There is a replacement for anything associated with your system regardless of age. If you ...
ventilation - home range hood7/11/2010
  Q: but it's a restaurant style, with 2 22k btu burners. It's a 30" range. I see some places suggesting ...
  A: Rob, Thank you for answering my question. Maybe I shouldn't have limited my answer to "fumes" but ...
air duct condensation7/11/2010
  Q: About 10 years ago I gutted my house and added an addition, and replaced the HVAC system. I live in ...
  A: Pat, Your right about the metal duct fittings that are exposed in the attic at the ceiling level ...
home air system [ Snyder General]7/11/2010
  Q: Here is my question what would cause my blower motor start then stop even if I put my thermosat on ...
  A: Ryan Kubiak, I don't know exactly what your blower assembly consists of but an electric motor can ...
ventilation - home range hood7/11/2010
  Q: but it's a restaurant style, with 2 22k btu burners. It's a 30" range. I see some places suggesting ...
  A: Rob, The 3" overhang is so the range hood can capture all of the fumes emitted from the range, it ...
Whining Fan Noise from Bryant Compressor Unit7/11/2010
  Q: we have a Bryant 663cj048-c condenser. After changing the air filter today, the fan makes a ...
  A: Greg, I'm not sure what you have? there's no air filter with a "condenser"? If your talking the air ...
Residential A/C compressor fan not rotating7/10/2010
  Q: My outside A/C compressor fan initially tries to rotate, but then fails. Simultaneously, a continuos ...
  A: Sheema, Stay with the guy and see what he dose, like keep a close eye on him. If he replaces the ...
AC comparison7/10/2010
  Q: 0. Money is very tight but AC is a must in TX. Now my Q's: 1. I currently have two Amana system: ...
  A: Mark, I'm not sure exactly what your asking? If you have two split systems or two self contained ...
Air Handler Combatability7/10/2010
  Q: I have a question about air handler combatatbility. I recently purchased a home and discovered the ...
  A: Nate, You can use a 2.5 condensing unit R-22 any brand that uses the same refrigerent as your air ...
Air Stratification with new Carrier Infinity A/C system7/9/2010
  Q: I have an "A" Frame house with three levels. The main part of the house (on this new system) has a ...
  A: Kirby, I don't have any idea what your duct system is? your floor plan etc. I don't think you'll be ...
Air Stratification with new Carrier Infinity A/C system7/9/2010
  Q: I have an "A" Frame house with three levels. The main part of the house (on this new system) has a ...
  A: Kirby, I think that the top level has the most exposure to the eliments the middle being next and ...
return sizing/location7/8/2010
  Q: I have a 4 ton split unit (heat pump) with one return (30*24). The return line in 16" diameter flex ...
  A: Tom, As I stated the 16" round has an area of 200 square inches, From your drawing it looks like the ...
Refrigerator/Air Condition7/8/2010
  Q: If temperature in home is set to 85 degrees during day, could it be the reason the drip pan under ...
  A: Gail, I don't do refrigerators but no the reason the drip pan overflowed is not because your house ...
heil central air conditioner.7/8/2010
  Q: power not working, my father checked power from fuse box and that works, but he can't find the power ...
  A: Jonathan, Your father needs to check for power at the attic unit, there should be a service toggle ...
heil central air conditioner.7/7/2010
  Q: power not working, my father checked power from fuse box and that works, but he can't find the power ...
  A: Jonathan, Ok I'm assuming that you have a Heil unit in your attic of some type? either a heat pump ...
Can freon be re-used?7/7/2010
  Q: My Rheem (2 yr old) compressor "shorted to ground" and is being replaced under warranty. The AC ...
  A: Jim, Freon can be re used if it's captured and not contaminated in any way which might be more ...
Carrier Air conditioning problem7/7/2010
  Q: my name is jonathan and I have a problem with AC unit in my home. I have Carrier CAC/BDP. it worked ...
  A: Jonathan lee, I got a good picture of the furnace but the cooling coil is above the top of the ...
Blower fan in attic unit7/7/2010
  Q: Have “identical” zoned units in attic and downstairs. When temp in attic goes >90F unit blower fan ...
  A: Steve, I'm not sure exactly what your wiring connections are on your attic unit, usually there is a ...
Split AC LG Gold 2 ton Heating up7/7/2010
  Q: I have problem of compressor getting hot after 15 minutes then cooling doesn't work, after 1 hour ...
  A: Alwyn, I'm not sure when you say "compressor" if you meane "compressor" or condensing unit? The ...
Blown fuses7/6/2010
  Q: We are having a problem with central air not working and discovered a blown fuse in the gas furnace. ...
  A: Judy, I'm not familiar with how they do things in Canada? The terminology "central air" covers a lot ...
furnace7/6/2010
  Q: I have a conquest 90 furnace.The thermostat upstairs in the house indicates that it can cool the ...
  A: Pam, Do you have an air conditioning unit installed outside of your house? There has to be an ...
blower fan not working7/6/2010
  Q: I have a Coleman 4ton (I think, according to previous service call) central heat/air unit. Memorial ...
  A: Patricia, I don't think there is any proublem with your power from the inside units breakers. When ...
blower fan not working7/5/2010
  Q: I have a Coleman 4ton (I think, according to previous service call) central heat/air unit. Memorial ...
  A: Patricia, Your question is confusing, you talk about breakers and fuses I don't know what your ...
HVAC primary coil drain fitting7/4/2010
  Q: Service people in the attic had stepped on the coil drain pipe and broke the plastic threaded pipe ...
  A: William, I can't tell from the pitcher but Your drain connection should be repairable? The female ...
HVAC primary coil drain fitting7/4/2010
  Q: Service people in the attic had stepped on the coil drain pipe and broke the plastic threaded pipe ...
  A: William, There are drip pan's and there are drip pans, they are all not identical. Some cooling ...
AC, humidity & ventilation7/3/2010
  Q: I will be getting a Trane High efficiency XV95 furnace with variable speed blower Motor and Variable ...
  A: Mireille, I guess the charcoal thing I suggested wasn't exceptable? The way air circulation works ...
water in ductwork7/3/2010
  Q: Is there a way to stop condensation 'blow-by' off the coil into your ductwork? I have a TRANE XV80 ...
  A: Todd, Your furnace is a multi position furnace, I don't have an installation manual on your model ...
AC, humidity & ventilation7/2/2010
  Q: I will be getting a Trane High efficiency XV95 furnace with variable speed blower Motor and Variable ...
  A: Mireille, An air conditioner is a dehumidifier, a dehumidifier is an air conditioner. Through the ...
AC, humidity & ventilation7/2/2010
  Q: I will be getting a Trane High efficiency XV95 furnace with variable speed blower Motor and Variable ...
  A: Mireille, A refrigerated air conditioner is a dry cooling and dehumidifies the air that circulates ...
Burning smell, electric furnace7/2/2010
  Q: this evening while the air conditioning was on, I noticed a decrease in the intensity of the sound ...
  A: Disha, I don't know exactly what all your unit consists of? If your running it in the heating mode ...
air conditioner and thermostat7/2/2010
  Q: The air conditioner in the old condominium where I rent is a 6 year old Rheem in a closet. The old ...
  A: Andrea, Air conditioners are sized to lower the temperature inside about twenty degrees cooler from ...
Goodman CPLE36-1 with heat pump outside unit not turning on7/1/2010
  Q: I have a Goodman CPLE36-1 central AC unit with heat pump that was installed in 2002 when the house ...
  A: I, I don't know what your power set up is? fuses or breakers? The outside unit has a different ...
ac problems7/1/2010
  Q: "Good day to you and thank you and God bless you for the giving of your time because Lord know we ...
  A: Joseph, An electronic air filter is an optional add on, you need a make and model and then a person ...
Central Air Conditioner6/30/2010
  Q: Barnhart, We have a 12 year old Bryant central air conditioner that is doing its very best to ...
  A: Nikki, Get the details on the warranties, different components and labor are for different lengths ...
heat pump6/30/2010
  Q: Yesterday our outside unit stopped working. Then the digital thermostat shut off. We've tried the ...
  A: Lisa, I don't have a parts list for your unit but the capacitor has a model/part number on it. Turn ...
heat pump6/30/2010
  Q: Yesterday our outside unit stopped working. Then the digital thermostat shut off. We've tried the ...
  A: Lisa, I don't know your unit? but I doubt if there is a reset switch? Your outside unit is on a ...
Replacing evaporator coil6/29/2010
  Q: We have a Lenox HVAC system. It includes an Elite 13 HP26 Series Unit heat pump which is outside and ...
  A: Virginia, I don't know if you read my "Bio" but I have been retired for several years, I have been ...
Replacing evaporator coil6/29/2010
  Q: We have a Lenox HVAC system. It includes an Elite 13 HP26 Series Unit heat pump which is outside and ...
  A: Virginia, If the unit was installed " May 4, 2010" it should be under warranty? It sounds like it's ...
Mini-split and sizing question6/29/2010
  Q: I'm thinking of putting a mini-split system in my workshop and I have a couple of questions. First, ...
  A: Heard, I suppose mini-split's are like everything else in the world, there are good and bad and ...
AC6/29/2010
  Q: RGPN-05nauer unit. It has developed and intermittent problem. When turned on the the circulating ...
  A: Jim, The thermostat when it calls for cooling sends 24 volts to a contactor that is in your outside ...
blown fuse6/29/2010
  Q: I have a 1997 Trane XE1000 model TTR060C100A2 ( not a heat pump model ). It has been cooling fine ...
  A: Danny, I don't have an owners manual for a "1997 Trane XE1000 model TTR060C100A2" so I'm not sure ...
Heat Pump Fan6/23/2010
  Q: I just replaced the fan motor and cap for my split system unit. The unit starts fine and cools for ...
  A: Mike, If your motor shuts off on thermal overload it should start again by itself when the motor ...
old oil furnace6/23/2010
  Q: Barnhart, We have an old oil heating furnace which was replaced several years ago. The company who ...
  A: Mary, I doubt if anybody would want the furnace? I don't know what people are using or what's ...
Compressor stopped6/22/2010
  Q: the system is 10 years old, and it has the inside air handler and cooling coils in the basement with ...
  A: Barbee, If you have power to the condenser fan motor and the motors good it's going to spin. Stick a ...
AC Condenser is turning on and off - when we attempt to turn it on.6/22/2010
  Q: Jim - I did not an original email confirming receipt - so I am resending this email I sent on 6/21. ...
  A: Cathy, I suspect that the outside units condenser fan motor is faulty? The motor can develop a dead ...
Compressor stopped6/22/2010
  Q: the system is 10 years old, and it has the inside air handler and cooling coils in the basement with ...
  A: Barbee, When your thermostat calls for cooling the inside blower, the condenser fan, and the ...
Negative Pressure & Odors6/22/2010
  Q: Replaced a water heater, the red/blue plastic collars on the top where the hot and cold pipes ...
  A: Tom, I couldn't see from your pitcher how the filter was inserted but a lot of installers who cut a ...
Negative Pressure & Odors6/21/2010
  Q: Replaced a water heater, the red/blue plastic collars on the top where the hot and cold pipes ...
  A: Tom, About your furnace, Are you still using the furnace to heat the house, maybe on a cold morning? ...
LuxAire Heat pump problem6/21/2010
  Q: I recently purchased a home that has two Luxaire heat pumps. The home is approximately 5 years old. ...
  A: Tim, I would have said your condenser fan motor or capacitor but if it's new it's not likely but ...
Negative Pressure & Odors6/21/2010
  Q: Replaced a water heater, the red/blue plastic collars on the top where the hot and cold pipes ...
  A: Tom, Who did your furnace, and humidifier installation That round hole in the end of the humidifier ...
AC Unit6/21/2010
  Q: My CHA is electric air with gas heat. It's about 17 years old now and sits outside. For two days, ...
  A: Cathy, Your question has me confused? I'm trying to figure out how a heating and air conditioning ...
Replacing older Trane air handler and COmpressor with new6/19/2010
  Q: How should a new air handler be installed to replaced older one? I have a 2ton Trane 10 seer air ...
  A: Barbara, You can type "R22" or "Freon" into your browser and learn all about the refrigerant in your ...
Replacing older Trane air handler and COmpressor with new6/19/2010
  Q: How should a new air handler be installed to replaced older one? I have a 2ton Trane 10 seer air ...
  A: Barbara, If your dead set on getting a new condensing unit which you say is necessary and a new air ...
Replacing older Trane air handler and COmpressor with new6/19/2010
  Q: How should a new air handler be installed to replaced older one? I have a 2ton Trane 10 seer air ...
  A: Barbara, The outside unit is called a "Condensing unit", the condensing unit is comprised of ...
Condensation leaks6/18/2010
  Q: Condensation from my Trane XE 90 has been leaking, then air stopped working properly( warmer air ...
  A: Eric, Forget the model, serial number, it doesn't help. I'm assuming it's a gas furnace but where in ...
Condensation leaks6/18/2010
  Q: Condensation from my Trane XE 90 has been leaking, then air stopped working properly( warmer air ...
  A: Eric, You mentioned "outdoor unit" which lets me know it's a split system. Your saying "old model; ...
Short-cycling of heat pump system6/17/2010
  Q: Jim, Thanks for taking the time to help. Trane XL15i heat pump that is about 1-1/2 years old is ...
  A: Ron, Your thermostat maybe calling for cooling at77.9 and turning off at 77.1? in which case the ...
Short-cycling of heat pump system6/17/2010
  Q: Jim, Thanks for taking the time to help. Trane XL15i heat pump that is about 1-1/2 years old is ...
  A: Ron,' If your thermostat is set at 77 the unit can't start and stop both at 77. There has got to be ...
Air Conditioning Condenser line causing mold?6/17/2010
  Q: I live in a 5-year old house that has 2 HVAC units. One is located in the basement and that serves ...
  A: Kim, It's a bit difficult to picture in my mind exactly how the attic refringent line are installed? ...
Model #PH048-1AB Janitrol A/C unit6/17/2010
  Q: Good day sir. This is almost worst-case scenario. It's midnight in Phoenix Az and my AC unit died. ...
  A: Brent, I don't know if you have a self contained system or a split system? You have fuses rather ...
air conditioner6/16/2010
  Q: I have a split system, BDP/ Carrier. It won't cool the house below 82 degrees F and that is if I let ...
  A: Kevin, AC units are pretty much sized to cool the inside twenty degrees below the outside ...
Contaminated Freon6/16/2010
  Q: Last year we had a problem with a compressor and had to have it completely replaced. A few days ago, ...
  A: David, Anytime the system is opened where the refringent flows the system is contaminated. If ...
Fan Keeps Breaking6/15/2010
  Q: Good Afternoon Mr.Barnhart, My wife and I just bought a 1,000 sq ft home built in 1952 in southern ...
  A: Nicholas There are lots of different heating and cooling units that could be installed on a roof, a ...
AC coil condensates - not into drip tray6/14/2010
  Q: Hey Jim, I have an on going issue with my HVAC unit in my attic. It is a heat pump with one ac ...
  A: Allen, There are multi position units that can be used for up-flow, down-flow, horizontal-flow, in ...
Heat Pump compressor failure 5yrs. old6/14/2010
  Q: noticed the inside temp. was rising. Then heard a noise in the outside compressor of our heat pump ...
  A: Debbie, The outside unit is the condensing unit, it houses the compressor, the condenser fan, ...
ac condensation drainage6/14/2010
  Q: Im getting alot of dripping from my ac condensation pipe that sticks out from my house. Is this ...
  A: mark, Your cooling coil inside the unit/duct has a drip pan that you can't see, this is the primary ...
Furnace6/13/2010
  Q: I have a two story 3600 sq ft house with two 4-Ton units, one for upstairs and one for downstairs. ...
  A: Joe, I apologize you did say your two outside units were 4 ton each,Sorry I missed it. This is ...
Furnace6/13/2010
  Q: I have a two story 3600 sq ft house with two 4-Ton units, one for upstairs and one for downstairs. ...
  A: Joe, If you have gas furnaces the 40,000 and 65,000 BTU's is for heating. You didn't say what the ...
Moving ductwork to attic.6/13/2010
  Q: We have an issue with moisture control in our 18" crawlspace. We have been advised to install all ...
  A: Diane, Since I don't know anything about your house, floor plan, attic, crawl space other then it's ...
Totaline P474-01006/13/2010
  Q: Have a Totaline P474-0100 Thermostat. I can't adjust the temp setting on it. The thermostat is on 75 ...
  A: Jim, I don't have anything on a Totaline P474-0100 Thermostat. Best I can suggest is it's faulty ...
AC vents6/12/2010
  Q: I have a 2350 sq ft home. It is a 1 1/2 story design, so the builders only put in one AC unit. I ...
  A: Sylvia, I don't know what "1 1/2 story design" is? I don't know what you mean by had the home zoned? ...
Furnace concrete base cracking6/12/2010
  Q: i can't find any information on this type of issue. We have a old Mars forced air furnace, works ...
  A: Carla, The furnace is an up-flow, the "large round sheet metal column" is called a return air drop, ...
hvac6/12/2010
  Q: When either heating or cooling is called for, the induction motor starts and runs for about 30 ...
  A: Dick, I don't know what type unit you have but it sounds like a whole lot of problems. The induction ...
outside unit6/12/2010
  Q: I have a Payne system...My outside unit has stopped running. What I mean by that is the fan has ...
  A: Jason, what's the compressor doing? is it coming on? Are you at the outside unit when the thermostat ...
hvac capacitors6/12/2010
  Q: A capacitor , 30/5 uf 370 vac and you replace it with a 30/5 uf 440 vac does it make a ...
  A: Randy, I suppose different markings on a capacitor means there is a difference or they could just ...
Furnace concrete base cracking6/11/2010
  Q: i can't find any information on this type of issue. We have a old Mars forced air furnace, works ...
  A: Carla, your description of your furnace leaves a lot in question? Where in the house is your furnace ...
kitchen fan/vent over range6/8/2010
  Q: Apologize if this is not in the correct line of questions but not sure where to ask. Please direct ...
  A: Merissa, I never could tell a big difference one way or the other as far as air quality goes. ...
ice on hvac coils6/8/2010
  Q: We had water leaking from our hvac system into another town house. we cleared the condensation line ...
  A: Kate, Still not sure what type coil your using? If it's an "A" coil shaped like an "A" frame you ...
weidensall2@yahoo.com6/8/2010
  Q: There seems to be something wrong with are Central Air Unit. When you turn it on the thermostat ...
  A: Catrina, Your outside unit has a faulty condenser fan motor, you can try getting some oil or WD-40 ...
ice on hvac coils6/8/2010
  Q: We had water leaking from our hvac system into another town house. we cleared the condensation line ...
  A: Kate, Since your not saying what exactly your "hvac system" consists of or where in the house it's ...
Central Air6/8/2010
  Q: We have a central air conditioning system that has worked fine for 27 years. (Yes, 27 years) We do ...
  A: Ed, The 220 electric power that runs the compressor and the fan motor is always on to the contactor ...
Central Air6/7/2010
  Q: We have a central air conditioning system that has worked fine for 27 years. (Yes, 27 years) We do ...
  A: Ed, Just answer the question, what turns on and then off and then on and then off and then on and ...
Question about AC unit6/7/2010
  Q: I am trying to find out the size of the AC units at my house. Outside unit Carrier Model fa4anf042 ...
  A: Paul, Both units should have a BTU rating plate stuck on them I think the air conditioning size is ...
Central Air6/7/2010
  Q: We have a central air conditioning system that has worked fine for 27 years. (Yes, 27 years) We do ...
  A: Ed, When you say "compressor" if your talking about the compressor going off and on it's puzzling ...
Leaking coil in condensing unit6/6/2010
  Q: I have a Ducane heat pump/ a/c system. Approx 5 yrs old.. I had a tech come out and state the ...
  A: Rick, Everything you own and use to heat and cool your house can be replaced. And a good percent of ...
Central A/C6/3/2010
  Q: Live in Houston - 1495 sq ft house. Looking at RUUD 14.5 Seer single stage w/variable speed furnace ...
  A: Christy, A heating and air conditioning system, split system in Houston would most likely be one ...
Central A/C6/3/2010
  Q: Live in Houston - 1495 sq ft house. Looking at RUUD 14.5 Seer single stage w/variable speed furnace ...
  A: Christy, Your question is confusing? I don't know if your talking split system or self contained? I ...
Trane XR12 getting power, won't work6/2/2010
  Q: I have a Trane XR12 Air Conditioning Unit. We just had a big rain storm and the air conditioner ...
  A: Bob, If there is 220 and 24 volts to the contactor in the unit and the condenser fan and the ...
HVAC6/2/2010
  Q: "I have an evaporator leak from my bryant system. to me it appears to be just condensation, or so I ...
  A: Joe, I can't see your installation but you don't want to put stress on the refrigerant lines ( if ...
HVAC6/2/2010
  Q: "I have an evaporator leak from my bryant system. to me it appears to be just condensation, or so I ...
  A: Joe, The pan under the unit is for incase the main drip pan under the cooling coil built onto the ...
HVAC6/2/2010
  Q: "I have an evaporator leak from my bryant system. to me it appears to be just condensation, or so I ...
  A: Joe, Your question needs a description, The word "pan" could mean a lot of things"? An example would ...
Blower Wheel Problem6/1/2010
  Q: I have an Amana AP077R portable air conditioner (it has 3 settings: cooling, fan, and dehumidifier, ...
  A: Cari,I don't service portable air conditioners and I don't really like doing anything with Amana at ...
White Rodgers air conditioner5/31/2010
  Q: It's time to turn on the air for the summer and I lost my instructions. Are they the same as the ...
  A: Janet, I don't know what type of air conditioning system you have? White Rodgers is a manufacturer ...
freon gone - replace unit vs. "most" cost estimate5/31/2010
  Q: I have a 4 ton unit that is only 6 years old. The unit is entirely out of freon. I have been told ...
  A: Belinda, I don't know what the warranties are on different units? I don't think there is any ...
Lennox Air conditioner5/30/2010
  Q: Just noticed air from vents not cool.....checked outside unit and found fan not running but system ...
  A: Travis, The inside unit and the outside unit are on sepperate breakers/"fuses". The outside unit has ...
Amana Furnace and AC Unit5/29/2010
  Q: We just purchased a home at the end of March 2010 that has a brand new Amana furnace and A/AC unit. ...
  A: Kathy, The compressor in the condensing unit is kind of like the compressor in your kitchen ...
Amana Furnace and AC Unit5/28/2010
  Q: We just purchased a home at the end of March 2010 that has a brand new Amana furnace and A/AC unit. ...
  A: Kathy, If the furnace says Amana it most likely is an Amana furnace. I'm assuming the heating and ...
Amana Furnace and AC Unit5/28/2010
  Q: We just purchased a home at the end of March 2010 that has a brand new Amana furnace and A/AC unit. ...
  A: Kathy, I don't know when your AC unit was installed? I don't know how old your house is? You can ...
ITT Thermostat5/28/2010
  Q: I have an ITT thermostat model T80BV100J that I would like to update. Do you have any suggestions ...
  A: Andrew, You should be able to get a "Millovolt heat only thermostat for about $10 at Lowes, Home ...
Residential HVAC-----Condensate5/28/2010
  Q: Mr. Barnhart,I have an on going problem with excessive water or condensation building up behind the ...
  A: Joe, I got the picture OK and now I have a vision in my head. Problem is that I don't know what's ...
Central A/C5/27/2010
  Q: we are trying to decide on who & what central a/c for only upper leve 1400 sq.ft. RRanch. A couple ...
  A: Frank, I don't have a floor plan of your upper level or a lay out of your attic access? I have no ...
Central A/C5/27/2010
  Q: we are trying to decide on who & what central a/c for only upper leve 1400 sq.ft. RRanch. A couple ...
  A: Frank, If I'm the home owner I want the air handler close to the attic access opening, I would like ...
Manual J Load Calc5/26/2010
  Q: I'm in process of replacing my Heat Pump and I've had several quotes. One quote was done with a ...
  A: Nathan, It's not likely that you live in an environment that a heat pump can meet both requirements ...
attic fan5/26/2010
  Q: I have a 5 year old 1.5 story house with a large atrium that faces west. Even in May, the ...
  A: Sander, An attic fan can help cool off some off the heat radiating into the living space. A high ...
mold problem5/25/2010
  Q: I live in South Florida, a very humid state. I have 2 ac systems in my home, one downstairs and one ...
  A: Debbie, Refrigerated air conditioning is a dry air conditioning, before air conditioning can really ...
Square inches for air return?5/24/2010
  Q: we recently had a home energy audit and were told that our air return is about half the size it's ...
  A: Marcia, If you had 400 square inches of free air for return you would have more then enough for a 5 ...
drip pan condensation5/24/2010
  Q: I live in a older building of 30 units that all are connected to a chiller. I think thats the term, ...
  A: Connie, I think your saying that your new drip pan made out of aluminum is condensating and dripping ...
indoor fan on AC is not working5/23/2010
  Q: When I turn on my HIEL AC the outdoor fan comes on but the indoor fan is not blowing air thru the ...
  A: Justan, The problem may be a wiring problem, a faulty blower relay, a faulty capacitor, a faulty ...
off-gassing5/23/2010
  Q: The a/c contractor used Hardcast's "ccwi 181 mastic sealant" (high velocity,industrial strength) ...
  A: Leslie, You didn't say/describe in your original question where these seven vents were located or a ...
HVAC Opinion5/20/2010
  Q: Greetings from a fellow AllExpert (Microsoft Excel)! I'm looking at having a new heat pump ...
  A: Nathan, I'm not sure what all your replacing? I don't know what Amana's rules and regulations are ...
Baseboard Heat5/20/2010
  Q: I am renovating a 2nd floor (interior) condo I have in NJ. It is a vacation home. I pulled out the ...
  A: Anthony, Are you talking about electric baseboard heaters? The idea of baseboard heaters is for them ...
Central A/C unit5/20/2010
  Q: My central A/C and furnace unit (old whirlpool dinosaur!) blower motor went out. It's a 115V, ...
  A: Steve, I agree with what you say, however a four speed gives a couple of more options if you want a ...
Heat Pump Compatibility5/20/2010
  Q: I do property restoration. Last January a client had a flood that required us to replace his ...
  A: Duane, A heat pump is just an air conditioner with the ability to run in reverse, when the ...
Thermostat install problem5/19/2010
  Q: I have a Rheem 41-20804-15 thermostat, changing to a Honeywell RTH3100c. Yep, I have a heat pump. ...
  A: Jo, I don't have a schematic from your old thermostat, new thermostat, air handler. The R post on a ...
Heat Pump Compatibility5/19/2010
  Q: I do property restoration. Last January a client had a flood that required us to replace his ...
  A: Duane, The outside unit is the heat pump, is that what they say won't come on? The inside air ...
Central A/C unit5/19/2010
  Q: My central A/C and furnace unit (old whirlpool dinosaur!) blower motor went out. It's a 115V, ...
  A: Steve, If your furnace has cooling/AC and heating then you should have a two speed motor, A speed ...
Trane Heating/cooling5/19/2010
  Q: We live in Columbus Oh and bought our new home about 9 years ago. It was installed with a Tranne ...
  A: Gretchen, There is nothing on your Trane unit that can't be replaced. There are units that I ...
protectction from wall heat source5/18/2010
  Q: Children are active at my work and during the last year we have had issue with 3-4 children touching ...
  A: Leslie, There just isn't enough information to even come up with a suggestion? It really dosen't ...
New duct runs for addition5/18/2010
  Q: Good morning, I have just added a 400 sqft addition(lvg room) to our house. this addition is open ...
  A: Sylvain, I don't know where or how your system is installed, access, size etc.? If it's not a big ...
New duct runs for addition5/18/2010
  Q: Good morning, I have just added a 400 sqft addition(lvg room) to our house. this addition is open ...
  A: Good morning to you Sylvain I hope all is well in Canada today. You need to place registers so that ...
MODEL NO. NUGM075EGB1, SERIAL NO. L964474265 GAS FURNANCE5/17/2010
  Q: This furnace was installed in 1997, it has been wonderful, but this spring after being off a couple ...
  A: Joyce, When your thermostat first calls for heat, if you observe the burner compartment of the ...
Mobile Home Heat Pump5/16/2010
  Q: What is your reccomendation for replacing my current system with a heat pump? 28'x64' Doublewide ...
  A: Johnny G, There is so much more to sizing then sq. feet, Just roughly and I mean roughly you need ...
Replacing Gas Furnace & Gas Water heater5/15/2010
  Q: I would like to replace my furnace %26 water heater with EnergyStar rated units. The furnace %26 ...
  A: Marilyn, Thank you for clearing up the "%26" question for me. I have had %26 interjected in ...
hot water converted to cold water5/15/2010
  Q: if suppose i pour slightly hot water (1 bucket) into the air cooler and switch on the cooler in ...
  A: steelcurtain, I would suppose that if air is blown onto anything including water that what it's ...
AC 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: David, Your not saying if your A/C unit is for cooling only or if it heats also? I don't think there ...
HVAC5/13/2010
  Q: payne split system heat pump 13 seer r22 indoor/outdoor. The outdoor unit will hum but fan will not ...
  A: Chrissy, I'm not shure what your calling "starter"? The 220/240 power is always on to the outside ...
rheem a/c5/12/2010
  Q: when i tried to start my a/c the unit will not come on. the fan works. how do i test the thermostat?
  A: Joe, I don't know what type AC you have? Split System or Self Contained but the air handler part and ...
Attic ventilation5/11/2010
  Q: Jim, I live in Houston,TX. When not using AC, my monthly bill is approx $100. May thru Sept it runs ...
  A: Ed, You left out a couple important bit's of info, What size is your AC unit and where in the house ...
condenser gaurd cover5/10/2010
  Q: Our building has central a/c units with the condenser mounted in the wall. The exhaust blows into a ...
  A: Joe, The condenser section is engeneered so that a calculated amount of air will pass through the ...
Leaking evap coil5/9/2010
  Q: I have a 15 year old Tempstar A/C for my house in Phoenix, where reliable air conditioning is of ...
  A: John, I think you need 5 tons of cooling for your house? With 4 tons it's going to run all the time ...
Heating rooms.5/9/2010
  Q: I live in ranch style brick home with a basement, all the air ducts are properly installed with its ...
  A: Arturo, Having the supply/heat registers on the outside walls and placed so that the air flowing out ...
Carrier Weathermaster not working5/9/2010
  Q: You were helping me with my carrier compressor, and I reached the limit of replies, so I am starting ...
  A: Ken, I'm not sure exactly what your heating and cooling system consists of? You say that you have a ...
no room to reinstall evaporator coil5/8/2010
  Q: while I was in Afghanistan my nwife had our oil furnace replaced(it caught on fire) with another oil ...
  A: Paul, I don't know what your options are? Someone can't just "Willy-nilly" install any type cooling ...
thermostat wiring5/6/2010
  Q: I am trying to use my central a/c and it is working but my a/c unit outside fan never kicks on like ...
  A: Dustin, The color of the low voltage wires is for identifying purposes only. The R post/connection ...
cooling smell5/6/2010
  Q: The afternoon sun hits the back of my house where the outside a/c unit is between 2 & 6 pm - every ...
  A: William, I don't have any idea what's causing the smell? There is no air connection between the ...
HVAC5/6/2010
  Q: which is a better system GIBSON or GOODMAN. I am replacing a 10 SEER TRANE XB1000. I have two ...
  A: Donna. All HVAC residential equipment is pretty much equal, Some have high priced names but there no ...
AC use for cost savings5/5/2010
  Q: We live in south central FL. The temps are near 90 and I'm sure it will stay that way, or warmer, ...
  A: Ernie, If 78 degrees is the tempature you want to maintain in the house when your home. Note: ...
UNIT freezing5/4/2010
  Q: Problem - house does not heat/cool evenly and when we run the AC the unit freezes. Background into ...
  A: Lisa, I don't know enough about your HVAC system to give an inelegant answer? History, unit model ...
Carrier Weathermaster not working5/4/2010
  Q: We have a Carrier Weathermaster 38TXA or 38TSA for cool air only. It is about 6 years old, and ...
  A: Ken, Just visually check the thin double strand wire that comes from the inside unit and runs to the ...
Carrier Weathermaster not working5/3/2010
  Q: We have a Carrier Weathermaster 38TXA or 38TSA for cool air only. It is about 6 years old, and ...
  A: Ken, I think you can rule out the leaves unless the unit is packed with leaves, What I'm getting ...
Selecting an A/C system5/3/2010
  Q: Jim, I am considering updating my 15 year old (on its last legs) Lennox A/C unit to a new energy ...
  A: Ed, A 13 SEER unit uses more electricity then a 14 SEER, a 15, or 16, even less. Other then amount ...
Quick Question3/27/2010
  Q: My household refrigerator is not working properly. The top freezer portion works fine, maybe even a ...
  A: Skyler, I don't do kitchen food refrigerators but from my own experience I would say you need to ...
furnace not working properly3/26/2010
  Q: our furnace just started to do a half-heating job. from 60 turn it up to 70 and furnace heats up, ...
  A: Jan, If your original question would have said something like, When our thermostat calls for heat ...
Replacing my heating and cooling system3/25/2010
  Q: I am looking for some advice as I am to replace my heating and cooling system. I have 4 estimates ...
  A: Nicole, In my opinion all residential heating and cooling equipment is equal in quality as long as ...
Coolant Smell3/25/2010
  Q: We had a new A/C unit installed. At that time a coolant leak developed and got all over the coil, ...
  A: Karen, Still not sure what type of furnace you have but which ever way the air blows up or down ...
furnace not working properly3/24/2010
  Q: our furnace just started to do a half-heating job. from 60 turn it up to 70 and furnace heats up, ...
  A: Jan, You or somebody needs to be at the furnace observing the cycle when the thermostat calls for ...
furnace not working properly3/24/2010
  Q: our furnace just started to do a half-heating job. from 60 turn it up to 70 and furnace heats up, ...
  A: Jan, In an attempt to try and diagnose the problem I need to know what it is that your calling ...
Air Conditioning/Heating Unit Will not turn off3/23/2010
  Q: We have had a problem with our Armstrong Heating/Air Conditioning Unit for about a year now. It is ...
  A: Aleathea, Take the thermostat off of the wall, Take the wires off of the thermostat that connect to ...
Air Conditioning/Heating Unit Will not turn off3/23/2010
  Q: We have had a problem with our Armstrong Heating/Air Conditioning Unit for about a year now. It is ...
  A: Aleathea, Your question ends saying "fixed it the very next day", I don't know if there is a problem ...
ac problem3/23/2010
  Q: Our AC unit is not working. We replaced the evaporate coils (3 tons) couple months ago and did not ...
  A: Mary, Your not saying what your system consists of? Is it a self contained system, everything in one ...
central heat unit3/21/2010
  Q: i need a capacitor for a coleman evcon unit. where can i get one
  A: Kim, I get mine from a heating and cooling suppler in my home town. Since I not sure where you live ...
Trouble with Thermostat Installation3/21/2010
  Q: I am writing you today to see if you could help me with an electrical problem I am having with ...
  A: Nate, In your picture It look's like C R %26 O are all red wires? Maybe it's my computer? Anyway I'm ...
Trane XR80 Honeywell Thermostat3/20/2010
  Q: Have a 4 year old Trane XR80 with x3 Honeywell Thermostats. The Thermostats are BLANK. I cannot work ...
  A: Gary, There are hundreds of Honeywell Thermostats, I don't know an "x3"? Look in the cover or on ...
split system3/19/2010
  Q: I have a core unit in a closet, the reversing valve is broke and I had to shut the system off. What ...
  A: Julio, If the thermostat isn't calling for heat or cooling nothing will run. If the fan switch is ...
Condo hvac drip pan3/17/2010
  Q: Jim... I am trying to locate a retailer in Chicago (60610) that would sell the chrome drip pans to ...
  A: Ann, I don't know what they do in Chi but in my part of the country there just made in somebody's ...
HVAC3/17/2010
  Q: I have motor rated @ 16 amps. when I put a clamp meter on it it reads 7.5 to 8.2 without the belt, ...
  A: Will, You can take an amperage reading with the belt off. With the belt off you will get the lowest ...
HVAC3/17/2010
  Q: I have motor rated @ 16 amps. when I put a clamp meter on it it reads 7.5 to 8.2 without the belt, ...
  A: Will, The 16 amps means it can draw up to 16 amps, anything above 16 amps and the motor will over ...
Trane xe90 gas furnance3/17/2010
  Q: Good morning Jim, I have a Trane XE90 gas furnace model# tux080c942a installed in 1996 that flashes ...
  A: Vernon, When the thermostat calls for heat the first thing that happens is the induced vent draft ...
suppy and return placement3/16/2010
  Q: I'm finishing the basement and have the walls studded. I am going to put the supply and return in ...
  A: Ed, The supply's can be any place from in the floor or at the floor to in the ceiling to at the ...
Carrier Airconditioner3/15/2010
  Q: Carrier ac is 7 years old. One year ago the fan motor went and had to be replaced. Was replaced by ...
  A: Debra, Volts has got to be the same unless somebody ran new wires all the way from the breaker, I ...
mobile home a/c indoor icing over3/15/2010
  Q: I have a double wide mobile home that the a/c keeps icing over on I've replaced the filters before ...
  A: Steven, The difference in room or area tempature is because of heat exposure and the amount of cold ...
american standard freedom 80 9 flast led code3/14/2010
  Q: my problem is that when the therm is turned up we have a honeywell digital the furnace heat will not ...
  A: Frank, I don't know exactly what your furnace entails? I don't have a resource for looking up model ...
Arkla Servel CF 105-N pilot light3/13/2010
  Q: I'm trying to light the pilot on my furnace, but can't figure out how to do so. I can see the line ...
  A: Jean, The center burner opening where the 1/4" aluminum tubing that comes from the gas valve above ...
Arkla Servel CF 105-N pilot light3/13/2010
  Q: I'm trying to light the pilot on my furnace, but can't figure out how to do so. I can see the line ...
  A: Jean, I don't know your furnace? "Arkla Servel CF 105" is not distributed in my part of the country ...
gas furnace3/12/2010
  Q: Have had problems with heat. Had new electronic ignition installed and high limit switch. That ...
  A: Darrell, Is your furnace in working condition now? Could you give a clue as to where in the house ...
Bryant Air handler3/11/2010
  Q: I have a bryant airhandler for a 5ton air conditioner approximately 6 years old. Today i had a ...
  A: Ronnie, Are you talking the "evaporator cooling coil" in the air handler? Cooling coils are made of ...
Adding HVAC Returns in Basement3/11/2010
  Q: I'm in the process of finishing my basement and want to add some registers down there as well as ...
  A: Richard, There is no problem with the length of the return, all that's important is that there is an ...
furance filters3/11/2010
  Q: which way do the arrows point (in or out) on furance filters? in towards furnace or out towards ...
  A: Herm, The arrows point in the direction of the air flow, since the air flows into the furnace from ...
heater3/11/2010
  Q: last night i noticed that my heater was not lighting. the thermostate was set to 74 but it was 62 in ...
  A: Jennifer, I don't have any description of your furnace? You need to tell me exactly what happens ...
RE: Repeated Freon Leaks in our Bryant/Carrier AC3/10/2010
  Q: We live in southwest Florida and we have a Bryant (brand name of unit outside of the house) and ...
  A: Sharon, Cooling coils should last forever under normal conditions and most likely just as long if ...
York 90 furnace on/off3/10/2010
  Q: York 90 furnace. no A/C ~ just heat. Since Nov 2009 my furnace has been not "running" properly. The ...
  A: Shannon, It sounds like a faulty motor that is running under stress probably from dry bearings? When ...
pressure in gas furnace3/10/2010
  Q: Our water has been turned off for 4 months as we are away for the winter. We have forced hot water ...
  A: Don, If you have an adjustable pressure water fill valve that has a hex nut and a screw slot on top ...
furnace filter holder3/9/2010
  Q: Jim, A few years ago I had a new gas furnace installed and it was attached directly to the returm ...
  A: Terry, I hesitate to offer suggestions because I don't know exactly what all is involved. There are ...
Forced Air Natural Gas Heaters3/9/2010
  Q: We are in the planning stages of installing electrical wiring in the roughly 1,000 sq-ft of living ...
  A: Terrill, I don't know what your "local utility" charges for gas or electric but where I live it ...
warm-up delay not working on new thermostat3/9/2010
  Q: My husband installed a new touchscreen programmable thermostat (Hunter). We has gas heat and central ...
  A: Laura, The problem could be in the wiring of the thermostat? I would say it's a pretty good ...
odor like potatoes boiling over3/8/2010
  Q: My mother is getting an odor in her basement after showering or running a load of wash. It smells ...
  A: Carol, Since it only happens when the shower runs or a load of clothes through the washer I got to ...
Blower runs all the time3/7/2010
  Q: Even though I turn off the heat switch on the thermostat control panel the blower still runs. I ...
  A: Andy, Just an electric furnace, no cooling/air conditioning, not a heat pump? I don't have a manual ...
Moving an AC unit3/7/2010
  Q: And, thank in advance for your time. I have a AC unit and forced air unit(heater). Both are ...
  A: Brian, "Minimum" meaning the least quantity or amount allowable. I'm saying no more then 50 feet of ...
Error Code 4 for Advantage 80 Furnace3/7/2010
  Q: there woke up this morning to a cold house. went to the mech room and noticed a error code 4 for my ...
  A: Robert, Limit or rollout switch open can mean any switch wired into the 24 volt electric circuit. A ...
Hydronic Baseboard heating3/7/2010
  Q: I live in Madison, WI and I am considering buying a house built in 1976 that uses a hydronic ...
  A: Matt, I would assume that the heat is controlled by one or two thermostats and yes you can use a set ...
Home AC3/6/2010
  Q: Scenario with Home Rudd AC - internal air handler, external compressor and condensor Air Handler ...
  A: Rich, The 24 volts that closes the contactor comes from the inside air handler 24 volt control ...
Moving an AC unit3/6/2010
  Q: And, thank in advance for your time. I have a AC unit and forced air unit(heater). Both are ...
  A: Brian, I'm not sure what you mean when say "moving the AC unit about 40 feet further away from ...
Armstrong Ultra V Tech 80 Heat Pump3/6/2010
  Q: Green light is flashing 6 + 1 which means "Lockout due to ignition failure" according to codes ...
  A: Darla, The lockout code is after the furnace has tried to light three or four times and then locked ...
rheem citron furnace problem3/5/2010
  Q: i have a rheem citron furnace that wont work.. it started with the hot surface ignitor going out, ...
  A: Bob, I don't have literature or service manuals on anybody's make or model furnace, There are ...
Noxious fumes coming from heat ducts. No CO identified.3/5/2010
  Q: Hope you can help! We had a 7yr old Goodman gas furnace (which was just replaced with a new one, ...
  A: Ed, I'm pretty sure if I could smell the smell your smelling I could tell without a doubt if it was ...
rheem citron furnace problem3/5/2010
  Q: i have a rheem citron furnace that wont work.. it started with the hot surface ignitor going out, ...
  A: Bob, It sounds like the wiring is messed up some place? If you pull a wire on one side of the limit ...
No fan --Auto3/5/2010
  Q: Fan works in on setting but not in auto (it may some for some amount of time--Intermitting to mainly ...
  A: Ralph, We are all independent of each other, I don't know any of the others. I think AllExperts has ...
heater won't light3/5/2010
  Q: We have a Trane heater that won't stay on for more than 20 seconds. we can see that it starts ...
  A: Andrew, When you say "heater that won't stay on for more than 20 seconds" do you mean the burner or ...
propane furnace3/4/2010
  Q: We have a Coleman Evcon and there is a green light that is supposed to stay on all the time. We have ...
  A: Wilma, "Coleman Evcon" Doesn't tell me anything about your furnace, there are lots of different ...
Advice on new furnace?3/3/2010
  Q: I currently have a ten year old 54,000 btu furnace in my 16x80 mobile home (approx 1200 sq ft.)I ...
  A: Kathleen, This is how it works. If your mobile home is in the Antarctic and your mobile home is ...
Heil furnace trip switch3/3/2010
  Q: I have a Heil gas furnace, model NUGG050DD04. I'm trying to locate the "trip switch". That's ...
  A: Darlene, I think your saying that the furnace has a standing pilot light that is on all the time? Or ...
new heating system3/3/2010
  Q: My son recently bought a remodeled house in Philadelphia. The house has a new gas furnace installed ...
  A: Dan, I can't follow your description and there wasn't any diagram. Air when it blows through the ...
Heil furnace trip switch3/3/2010
  Q: I have a Heil gas furnace, model NUGG050DD04. I'm trying to locate the "trip switch". That's ...
  A: Darlene, People don't have an easy way of referencing a "Heil gas furnace, model NUGG050DD04" ...
new heating system3/2/2010
  Q: My son recently bought a remodeled house in Philadelphia. The house has a new gas furnace installed ...
  A: Dan, There are Up-Flow, Down-Flow, and Horizontal-Flow furnaces. Furnace can range in size from ...
DNP NATURAL GAS HEATER3/2/2010
  Q: We have a Model 30UHE-1 DNP Natural Gas heater - Serial number 49U11-26177. The pilot light will ...
  A: Frank, Your saying "pilot light will light and stays lit", "The gas is definitely on". What am I ...
Furnace3/1/2010
  Q: I have an older Victor furnace from the Hall-Neal Furnace Co. that I am trying to find the ...
  A: Tammy. Since "Hall-Neal Furnace Co" stopped making furnaces 44 years ago I don't think any there are ...
My furnace doesn't always light3/1/2010
  Q: I have an Amana air command 80 sv unit at home and it doesn't always give heat. Ill set the ...
  A: John, I think your calling the "igniter" the "flame sensor"? The flame sensor doesn't light or ...
DNP NATURAL GAS HEATER2/28/2010
  Q: We have a Model 30UHE-1 DNP Natural Gas heater - Serial number 49U11-26177. The pilot light will ...
  A: Frank, No idea what a "DNP NATURAL GAS HEATER" is? Is DNP a brand name? What is it other then a ...
propane furnace2/28/2010
  Q: We have a Coleman Evcon and there is a green light that is supposed to stay on all the time. We have ...
  A: Wilma, There could be many reasons why your furnace is shutting down? Your furnace green light may ...
heat pump issue2/28/2010
  Q: I have a Rheem 3.5 ton R22 13 seer condenser/heat pump. Bought it in 2006 and kept my old Carrier ...
  A: Monica, I don't know how cold it gets where you live or how much your asking your thermostat to do ...
Rheem Heat Pump Freezing Up2/28/2010
  Q: Model: RPKA-025JAZ, Serial: 6388M070307589 Florida Panhandle area. Exceptional cold winter this ...
  A: Frank, Heat pump units have a defrost control that defrosts the unit in cold weather. I don't know ...
Rheem Heat Pump Freezing Up2/27/2010
  Q: Model: RPKA-025JAZ, Serial: 6388M070307589 Florida Panhandle area. Exceptional cold winter this ...
  A: Frank, I have no idea what exactly what your unit is? Of course I know the Rheem name, and the ...
Single vs. 2 speed compressor2/27/2010
  Q: I live in the Sarasota FL area and will be replacing my 42,000 BTU, 10 SEER, 16yr old Train heat ...
  A: Bruce, I think it's your decision, I never could quite get it into my head what the advantage of ...
Central heat problems2/25/2010
  Q: We have a 6 year old air/heat crane unit 5 tons with heating strips. When the weather gets below 38 ...
  A: Debbie, Hear is what I think you have and how it should work. I think you have a heat pump system, ...
return air size heating / Ac heatpump2/25/2010
  Q: I have a 1658sq.ft. home, with a 3ton seer-13 unit. This unit is a replacement, and the installer ...
  A: Everett. I don't know exactly how much of that 1658 sq. ft. your cooling. If your giving me ...
Central heat problems2/25/2010
  Q: We have a 6 year old air/heat crane unit 5 tons with heating strips. When the weather gets below 38 ...
  A: Debbie, OK you corrected the make. "the blower goes off and on", Would that be the inside ...
Central heat problems2/25/2010
  Q: We have a 6 year old air/heat crane unit 5 tons with heating strips. When the weather gets below 38 ...
  A: Debbie, I don't know the "Crane unit"? my Whos Who says that Crane stopped making units in 1968? ...
Furnace2/25/2010
  Q: I have an older Victor furnace from the Hall-Neal Furnace Co. that I am trying to find the ...
  A: Tammy, I never heard of your furnace? This is what I found on my who's who furnace list. "HALL-NEAL ...
janitrol 922/24/2010
  Q: When i turn on my heater the blower is running constantly and i have a spark but the heaters don't ...
  A: Aaron, I don't have a manual on a "janitrol 92" furnace. Dose your furnace have a spark ignition ...
Filter/Grill Hum2/24/2010
  Q: I started getting a hum from my filters a few weeks ago and its hard to sleep with this loud humming ...
  A: Tommy, If you had say a 20x20 duct opening through the wall or ceiling that would be 400 square ...
Furnace leaking2/23/2010
  Q: I have a furnace that has a direct copper line into my water line i have lived in my house for 5 ...
  A: Hollyn, If your talking about a 1/4" copper tube that connects to a furnace humidifier unit and to a ...
Octopus Gravity Furnace2/23/2010
  Q: Need help or suggestions: Heat went out on my daughter’s 90 year old furnace. (Norman Conversion ...
  A: Dennis, I don't think your "daughters 90 year old furnace" is 100% safety? I realize that the ...
Heat pump2/20/2010
  Q: We've had this heat pump for the last 10 years and it has worked great, but last week it stopped ...
  A: Nancy, I don't know if your heat pump system is multi staged? A heat pump doesn't heat like a unit ...
Heat pump2/20/2010
  Q: We've had this heat pump for the last 10 years and it has worked great, but last week it stopped ...
  A: Nancy, When your not getting heat check the big line so see if it's warm or cold, If it's cold it ...
hot air wasted by being blown to the attic2/20/2010
  Q: I have a central air unit in the attic and I have recently noticed that there is an outlet probably ...
  A: Hey Bart, It's been awhile. I was sure that it was a condensate drain line but you never know? The ...
Heat pump2/20/2010
  Q: We've had this heat pump for the last 10 years and it has worked great, but last week it stopped ...
  A: Nancy, It sounds to me like the outside unit isn't coming on some times, either the the whole ...
New Blower Motor Not Functioning properly2/20/2010
  Q: I have a Bonair furnace/heater approximately 52 years old and the blower motor, which I assumed ...
  A: Joe, Maybe no transformer? I don't know the " Bonair furnace"? I just assumed that it was a regular ...
Garage Air Exchanger?2/20/2010
  Q: I live in Minnesota and I have a heated garage with in-floor heat. With outside temperature's from ...
  A: Kevin, I don't know what your calling an "air exchanger"? With a hanging unit heater the fan/blower ...
New Blower Motor Not Functioning properly2/20/2010
  Q: I have a Bonair furnace/heater approximately 52 years old and the blower motor, which I assumed ...
  A: Joe, If you connect an extension cord directly to the motor and plug it into a 110/120 receptacle ...
New Blower Motor Not Functioning properly2/19/2010
  Q: I have a Bonair furnace/heater approximately 52 years old and the blower motor, which I assumed ...
  A: Joe, All I can tell you is that if you connect 115 volts of power to a motor that runs on 115 volts ...
Heat Pumps2/19/2010
  Q: I currently have a heat pump for my heat. It is on its last limb, the heat doesn't work only the ...
  A: Becky, A heat pump is just an air conditioner that runs backwards and warms the cooling coil in your ...
Rheem furnace2/18/2010
  Q: I have a old 1980's rheem furnace. I've had two Techs come out and clean it and said nothing is ...
  A: Brian, If the burners are going off prematurely before the thermostat is satisfied but the blower ...
Heating Cost2/18/2010
  Q: I live in apartment with heat pump unit system “GOODMAN.” The first day I came to my apartment I ...
  A: Mazin, Example: if your thermostat is set at 70 and the outside tempature is mild say 55 and the ...
Gas Fireplace2/18/2010
  Q: Jim, I have a gas fireplace issue that I was hoping you could assist with, or refer me to someone ...
  A: Daniel, I don't know your gas fireplace insert assembly without seeing it but I'm guessing it has a ...
Furnace won't run past 63 degrees2/17/2010
  Q: I have a 1991 Rheem Imperial 90 Furnace in my home. A few days ago the furnace would only warm the ...
  A: John, OK I don't have a manual on your furnace and I can't see it. Now days it seems that most all ...
Heating Cost2/17/2010
  Q: I live in apartment with heat pump unit system “GOODMAN.” The first day I came to my apartment I ...
  A: Mazin, A heat pump is an air conditioning unit that has a couple of controls that allows the flow to ...
Furnace won't run past 63 degrees2/17/2010
  Q: I have a 1991 Rheem Imperial 90 Furnace in my home. A few days ago the furnace would only warm the ...
  A: John, Good description of the cycle with the exception of what happens after every thing shuts off ...
heat/airconditioning2/16/2010
  Q: my unit outside freezes during the winter because the over flow from my gutters. I have new ...
  A: Marilyn, I don't know what type of unit you have? I don't understand what the freezing situation is? ...
gas furnace2/16/2010
  Q: Jim, I'm having trouble with my Carrier gas furnace about once a day now. The thermostat calls for ...
  A: Joe, There is a track across the top of the front end of the burners that feeds the gas from the ...
New carrier gas furnace ignition problems2/15/2010
  Q: Greetings - I have a carrier gas furnace that was installed just two years ago, and about two weeks ...
  A: Carter, When the thermostat calls for heat the first thing that happens is the inducer runs, the ...
Basement Bath Vent Fan2/14/2010
  Q: I am installing a bathroom in my basement. The dimensions of the bathroom will be 6' x 7'. I want to ...
  A: Tim, I think your OK with the 23' plus or minus a couple of feet if your running strait out ...
outside condenser coils freeze up during winter2/13/2010
  Q: Jim, I have a heat pump system. The outside unit freezes up when the outside temp. is close to ...
  A: Bob, The outside unit should have a defrost control that comes on periodically to keep the coil from ...
Furnace ignition/explosion.2/12/2010
  Q: I have a Sears Life Clad Furnace w/ (4) 18" burners. model# 867763333. Every couple of days I get an ...
  A: Michael, When you look into burner area the igniter is on your right side, there is a track across ...
Furnace ignition/explosion.2/11/2010
  Q: I have a Sears Life Clad Furnace w/ (4) 18" burners. model# 867763333. Every couple of days I get an ...
  A: Michael, I don't know what "Bill Brainard answered", I don't even know who "Bill Brainard" is? I ...
Arcoaire furnace2/10/2010
  Q: Furnace runs fine for 30-45 minutes then blows cold air. Trouble code is continuos flash = flame ...
  A: James, Are you saying the thermostat get's satisfied and the burner shuts off but the blower keeps ...
Burner flame on Amana 90% furnace2/10/2010
  Q: Amana GUX045B30A S/N 9202206878 MFR P1119801F The flame is backing up into the burners. Not ALWAYS ...
  A: Steve, I don't have a manual on your furnace but 25 ft. of PVC, two 90's a 45 may be a bit more then ...
cold condo unit2/10/2010
  Q: Our strata is a 3-storey, 1976, wood framed building (original windows)in a suburb of Vancouver, ...
  A: Judith, Too much non helpful information to try and absorb and not enough helpful. The most likely ...
Carrier 58ssb2/9/2010
  Q: We have a 24 year old Carrier 58SSB that has the indoor air blower continuously running. Repairmen ...
  A: Susie, I don't have a manual on your furnace and during the 24 years that your furnace has been in ...
hot air furnace2/7/2010
  Q: Is it possible to hook up 2 stats to a oil hot air furnace one upstairs and one in the basement ...
  A: Bill, So why don't you just set the thermostat up to a higher setting to make the furnace come on? ...
cold air return/bonus room2/6/2010
  Q: have a cold bonus room (2nd floor )..put r 30 in knee walls ..told to blow celleous in floor ..will ...
  A: Mike, Cold air returns are like people, there all different, I don't know what you've got? If you ...
heat pump furnace2/6/2010
  Q: We have dual zone HVAC. One is a heat pump for both heat and a/c. We are having a record snowfall, ...
  A: Mary, I never have known of a snow problem with an outside heat pump condensing unit, Where I live ...
New HVAC system2/5/2010
  Q: I am building a two story house and will be using forced hot air (can't afford radiant) heating and ...
  A: Jim, What's going to be your fuel for heating, Gas or electric? Just curios. Whatever you can get ...
cold condo unit2/5/2010
  Q: Our strata is a 3-storey, 1976, wood framed building (original windows)in a suburb of Vancouver, ...
  A: Judith, Can you give a better description of what the "unit" is, number of rooms, approximate lineal ...
hot water radiator system2/5/2010
  Q: I'm purchasing a crafstman style 1928 bungalow in Wisconsin that had steam heat which was converted ...
  A: Michael, OK, now your saying that the boiler has a "pump", Your "bungalow in Wisconsin" has several ...
furnace2/4/2010
  Q: I have a natural gas furnace that(about half the time) only kicks on when the temp drops 10 or 15 ...
  A: Yo, Take the wires that are connected to the R and W posts off of the thermostat and twist them ...
furnace issue2/4/2010
  Q: I've notice that my outside air conditioner unit sounds like the blower kicks on when the furnace ...
  A: Patty, I don't know what you have for heating and cooling? Carrier and Ruud make a lot of different ...
98 Weathermaker 9200 Carrier gas funace burner2/3/2010
  Q: I just had my burner assemble replaced on my gas furnace hoping it would solve the problem of my ...
  A: Carol, I don't know what your calling a "heat regulator"? If you have the burners out and you have ...
98 Weathermaker 9200 Carrier gas funace burner2/3/2010
  Q: I just had my burner assemble replaced on my gas furnace hoping it would solve the problem of my ...
  A: Carol, You can look at the flame, too much yellow is too much air, too much red is too much gas, a ...
furnace2/3/2010
  Q: Unfortunately, it looks as though I am going to need to purchase a new blower for my heater. It is ...
  A: Ann, Sounds like your blower just doesn't come on like it should, that doesn't mean that the blower ...
propane smell coming from duct work2/1/2010
  Q: i have propane heat,and there is a propane smell sometimes comming from the vents.what could cause ...
  A: Mike, Mix up an ounce of liquid detergent and an ounce of water, get a small paint brush 1", brush ...
Furnace intake air2/1/2010
  Q: I am an energy consultant testing existing homes to help the customer reduce energy usage through ...
  A: Paul, It depends on what your calling "the air intake"? If your talking about the combustion air ...
Payne gas pack2/1/2010
  Q: Why is airflow poor and temperature will not rise above 60 degrees. Gas pack filter is clean. ...
  A: John, I don't know exactly what your dealing with? I don't know where the ducts run or if they are ...
furnace1/30/2010
  Q: Unfortunately, it looks as though I am going to need to purchase a new blower for my heater. It is ...
  A: Ann, What type of blower? There are hundreds of blowers different types, sizes etc. I doubt if you ...
Janitrol - Honeywell Magnetic Gas Valve1/29/2010
  Q: I've got an ancient Janitrol gravity fed furnace that's been working for us for years. Model # ...
  A: Ann, If your a DIY person then you could get a replacement valve off of the Internet for a fraction ...
Burners on - off after 1 or 2 seconds1/29/2010
  Q: I have a Weil-Mclain VHE boiler, I have hot water heat - 3 zones - 3 B&G Red Booster Pumps. The ...
  A: Mike, I'm not sure what all type blower and controls your dealing with? I don't know your pressure ...
Burners on - off after 1 or 2 seconds1/29/2010
  Q: I have a Weil-Mclain VHE boiler, I have hot water heat - 3 zones - 3 B&G Red Booster Pumps. The ...
  A: Mike, When the burner is called for to come on the first thing that has to happen is the vent ...
furnace1/28/2010
  Q: I have a Rheem Criterion II gas furnace, sometimes it will not start. There is a round black switch ...
  A: Michael, I think your talking about the pressure switch for the vent induced draft blower? When the ...
Heil furnace1/27/2010
  Q: I have a 6 year old high efficiency Heil furnace. The motor was going on and off and I had it ...
  A: Rob, It's a furnace vent "induced draft blower". I'm not sure what the problem is now that you have ...
Flame Sensor dirty all the time1/27/2010
  Q: I have this ongoing battle with my flame sensor. I have to clean the thing about 2 or 3 times a ...
  A: Brian, Your the one who brought up the different ways you've been cleaning it. the type of furnace ...
Heil furnace1/27/2010
  Q: I have a 6 year old high efficiency Heil furnace. The motor was going on and off and I had it ...
  A: Rob, I'm not sure what part you replaced? "I replaced the part" the whole blower assembly, the whole ...
filling under floor ducts1/26/2010
  Q: My home was built ~1965 using a "spiro-duct" flexible ducting product, then the slab floor was ...
  A: Don, I was saying if it were done properly I didn't think the floor would ever giveaway? Maybe you ...
central heating unit outsideq1/26/2010
  Q: my unit is a Trane high eff.weathertron heat pump xe 1000 my unit let out a sound like a electrical ...
  A: Ken, Check this site. ...
Flame Sensor dirty all the time1/26/2010
  Q: I have this ongoing battle with my flame sensor. I have to clean the thing about 2 or 3 times a ...
  A: Brian, A strip of emery cloth about 1" wide the type you can find in the plumbing department at ...
Gibson Condensing Furnace Gas 92 model KG6RC1/26/2010
  Q: Gibson Condensing Furnace Gas 92 KG6RC model. Works fine as long as operating continuiously on ...
  A: Dennis, The fact that it runs throughout the day may indicate that the crawl space get's colder at ...
Gibson Condensing Furnace Gas 92 model KG6RC1/25/2010
  Q: Gibson Condensing Furnace Gas 92 KG6RC model. Works fine as long as operating continuiously on ...
  A: Dennis, The way it works, or should work, the thermostat calls for heat, the vent induced draft ...
Thermal Overload1/25/2010
  Q: Yesterday, one of the wires leading into my outside HVAC wore through from vibration and arced or ...
  A: Kate, A "Thermal Overload" is when something (a unit of some type) is operating under stress and it ...
Gibson Condensing Furnace Gas 92 model KG6RC1/25/2010
  Q: Gibson Condensing Furnace Gas 92 KG6RC model. Works fine as long as operating continuiously on ...
  A: Dennis, It's what the furnace dose when it calls for heat that counts, you need to be there to see ...
heat exchangers1/25/2010
  Q: where can i find out in writing that its illegal to repair a heat exchanger? thank you , mike
  A: Mike, You can call the building department (mechanical section) that governs the area where the heat ...
clogged orifice on propage furnace burner1/23/2010
  Q: I am fairly sure I have clogged orifices on two of the 8 burners on my furnace. These two burners ...
  A: Vince, I don't know what type of furnace you have? I'm assuming you mean "propane" not propage? The ...
continue1/23/2010
  Q: It stays on 2-3 minutes. However, now it doesn't even go on with the LED flashing 24.
  A: Anthony, Were dealing with two things, the heating circuit and the blower circuit, using the word ...
Carrier Gas Furnace won't stay on1/23/2010
  Q: I have a Carrier Gas Furnace installed in my basement. We just had our Gas Company (BGE) replace our ...
  A: Anthony, So how long dose dose the blower run after the burner shuts off? ( everything run's as it ...
ITT Thermostat1/23/2010
  Q: I have an old home with an under-the-floor heater with an ITT cat. n. T808V100J thermostat. It says ...
  A: Ted, The furnace must be very old, fifty plus years? I don't recall a B54M gas valve, it must be a ...
Gurgling Gas Boiler1/22/2010
  Q: Dan, OK I got one picture with your last response. I can't see an expansion tank. I can't see a ...
  A: Dan, I don't know how to explain the procedure of the water fill pressure regulator adjustment or ...
Gurgling Gas Boiler1/22/2010
  Q: I have an old Bryant 234-3PW gas boiler in my home. This winter I have noticed an increased amount ...
  A: Dan, OK I got one picture with your last response. I can't see an expansion tank. I can't see a ...
Gurgling Gas Boiler1/21/2010
  Q: I have an old Bryant 234-3PW gas boiler in my home. This winter I have noticed an increased amount ...
  A: Dan, The "old Bryant 234-3PW gas boiler" is like all the "Bryant 234-3PW gas boiler's".All the rest ...
Vibrating Pipes From Recirculating Pump1/21/2010
  Q: I have a B%26G 100 series hot water recirculating pump that pumps the water that heats my house (in ...
  A: Mary, I can't tell you what might or might not work from where I'm sitting. If it were me I might be ...
Gurgling Gas Boiler1/21/2010
  Q: I have an old Bryant 234-3PW gas boiler in my home. This winter I have noticed an increased amount ...
  A: Dan, First: the pressure on the system is the pressure be it water or air, you need to set your ...
Vibrating Pipes From Recirculating Pump1/21/2010
  Q: I have a B%26G 100 series hot water recirculating pump that pumps the water that heats my house (in ...
  A: Mary, There are rubber bushings around the motor%26 pump mounts, the pump sticks out and all of the ...
York Furnace Open Limit Error - Fan but No Ignition1/21/2010
  Q: Jim, I read a Q&A on this topic that you commented on from Jan. 14, 2009...I have the exact same ...
  A: Troy, The 24 volt heating circuit. When the thermostat calls for heat the thermostat sends power to ...
Sizing Furnace B Vent1/21/2010
  Q: Currently insulating my attic and was getting ready to insulate around my b-vent when I noticed it ...
  A: Andy, Every thing you say is true "except" the furnace vent needs to be just for the furnace only ...
Sizing Furnace B Vent1/21/2010
  Q: Currently insulating my attic and was getting ready to insulate around my b-vent when I noticed it ...
  A: Andy, Basically you have a furnace with a 4" vent connector Collar and a water heater with a 4" vent ...
Century Conquest 801/20/2010
  Q: I woke up this morning to find that I have no heat. First the blower comes on, then I can hear the ...
  A: Shawn, I don't know what to tell you? My experience tells me that the first thing that happens is ...
Condensation problems with A/C ductwork in attic1/20/2010
  Q: I added an AC system in my attic a couple of years ago and after having a couple of below zero ...
  A: David, All I know is that you have to separate the heat from the cold. The heat coming from the ...
Century Conquest 801/20/2010
  Q: I woke up this morning to find that I have no heat. First the blower comes on, then I can hear the ...
  A: Shawn, "Century Conquest 80" what is that? I know it's a gas furnace but that's about it. What is ...
Heat Pump1/19/2010
  Q: Help. I've got a 15+ yr heat pump that's gone kaput with 2 problems. I've recently gotten divorced ...
  A: Lee Ann, In my opinion all residential heating and air conditioning equipment is equal as long as ...
Generator / Furnace1/19/2010
  Q: I have a generator for when the power goes out. Heres my problem, The generator would run the ...
  A: Tom, I can't understand exactly what your trying to do? or what's not working? Are you trying to get ...
Inducer Blower Motor1/19/2010
  Q: My inducer motor started making noise a few weeks ago when the heat came on. Eventually it would go ...
  A: Mark, You would know better then anyone if you could do it? Your asking the wrong guy about about ...
Thermostat for Lennox 2GH3285S1/18/2010
  Q: Someone installed a regular digital thermostat but we were told by the gas company he needs a ...
  A: Larry, Any millivolt thermostat will work. It's just an on/off heating only thermostat. All you need ...
natural gas furnace1/17/2010
  Q: furnace is in a building that is not heated when we turn it on to use it the furnace comes on heats ...
  A: Don, If your talking a hanging gas unit heater, the heater probably has a fan limit control that is ...
Coleman Vexar #DGAT090BDF Furnace1/17/2010
  Q: Ahhh, what you are saying makes sense. The Ignitor wouldn't even light or glow if it was not working ...
  A: Diana, I just don't think there is anything else I can do or say from where I'm sitting. If you ...
Coleman Vexar #DGAT090BDF Furnace1/17/2010
  Q: Ahhh, what you are saying makes sense. The Ignitor wouldn't even light or glow if it was not working ...
  A: Diane, It's called a flame sensor. The only purpose of the flame sensor Is that it turns the gas off ...
Vexar Heating & Air Ignition Failure1/17/2010
  Q: According to the blinking light, my furnace has Ignition Failure. I have had 2 Electricians replace ...
  A: Diane, What your saying or what you have said is,"As for the pilot, it glows very nicely", "I hear a ...
Hot water heater gas connection1/17/2010
  Q: I discovered during an energy audit that the gas piping on my water heater was leaking. I will need ...
  A: Greg, I can't see from the picture where the yellow flex is coming from? Gas piping codes can be ...
Vexar Heating & Air Ignition Failure1/16/2010
  Q: According to the blinking light, my furnace has Ignition Failure. I have had 2 Electricians replace ...
  A: Diane, So you don't have a pilot light but rather an element that glows (no flame)? You don't need ...
Vexar Heating & Air Ignition Failure1/16/2010
  Q: According to the blinking light, my furnace has Ignition Failure. I have had 2 Electricians replace ...
  A: Diane, The way it should work. When the thermostat calls for heat, the vent induced draft blower ...
sears 600 furnace1/16/2010
  Q: are these furnaces natural gas or LP gas. If they are natural, can they be converted to LP
  A: Bud, I don't know the Sears 600 furnace? Any appliance that burns natural gas can be converted to ...
Electric heat strips1/15/2010
  Q: When I have the thermostat switched to emergency heat, should electric heat strips stay on inside ...
  A: Mark, I don't know what "unit" represents? If your "unit" uses electric heat strips and the heat ...
How many heat supply vents are required by code?1/15/2010
  Q: I live in Wisconsin in a 4 family apartment building from the early 1900's. My landlord switched ...
  A: Melissa, Codes are for health and safety, I don't know of any code that say's your apartment has to ...
Carrier 58RAV error code 121/15/2010
  Q: I have a "blower on after startup (115v or 24v)" error 12 going on. When I shut down the power for ...
  A: Rick, If your filter is dirty enough to impede the air flow enough the furnace will over heat and ...
Fain Coil Trouble1/14/2010
  Q: My fan coil carrier unit FC4 keeps on tripping the circuit breaker switch to the off position. It ...
  A: Lindsay, There is no mention of heat so I'm assuming that it's strictly for cooling purposes, You ...
furnace not heating adequately1/14/2010
  Q: I have a 1957 gas gravity furnace, 100,000 BTU's, located in the basement. During very cold outside ...
  A: Ruth, I don't know what the answer is? What I'm getting is that the furnace has heated the house ...
furnace not heating adequately1/14/2010
  Q: I have a 1957 gas gravity furnace, 100,000 BTU's, located in the basement. During very cold outside ...
  A: Ruth, Is your house a two story? not including the basement? Are you just heating the first floor. ...
Auxillary Heater - without Heat Pump1/14/2010
  Q: Jim Hello. I am currently helping out a friend with a new Heat Pump installation. We have an ...
  A: Joel, I don't know what happened to your question? I was in the process of giving my answer and it ...
furnace/thermostat prob1/13/2010
  Q: We have a gas fired carrier furnace/central air system at our home and a honeywell programmable ...
  A: Tino, So how do you turn the blower off or do you just leave it run? To check the thermostat for ...
FURNACE WONT BLOW HEAT1/12/2010
  Q: i REPLACE MY THERMOSTAT SO THAT IS BRAND NEW. MY FURNACE IS A NEW HIGH EFFICIENCY ONLY FOUR YEARS ...
  A: Susan, Maybe I could help with a better description? If you observe the heat cycle this is the way ...
Heat pump1/12/2010
  Q: We built a house almost a year ago. The house is 1380 square foot. The contractor put in a 2 and a ...
  A: Brian, I don't know how cold it gets where you live or what temperature it needs to be inside your ...
Heat pump1/12/2010
  Q: We are having troubles with our heating we have York split-system heat pump models 10 and 12 seer ...
  A: Ginger, The outside unit is the heat pump. The inside unit is an air handler. Inside the air handler ...
Arcoaire RPJ ii sporatically igniting1/10/2010
  Q: Was installed in the mid-90's; connected to an outdoor A/C; is GFA w/a non-digital thermostat. Goes ...
  A: Mike, I just don't know your furnace? There have been some changes made in the past 15 years, You ...
Arcoaire RPJ ii sporatically igniting1/10/2010
  Q: Was installed in the mid-90's; connected to an outdoor A/C; is GFA w/a non-digital thermostat. Goes ...
  A: Mike, How about "Goes through the cycle: Inducer, igniter, but no ignition? or ignition for one or ...
Heating1/10/2010
  Q: I had a Comfortmaker 4ton A/C unit installed 2 years ago. At the time I bought it without a heat ...
  A: Jeff, In other words you bought a refrigerated air conditioning system, not a heat pump and the heat ...
2 speed furnace blower1/9/2010
  Q: How is a 2 speed furnace blower suppose to work? I have a 2 stage(Aux & Em.heat) electric furnace ...
  A: Greg, When I wire a motor or a unit I have to follow the wiring diagram, There is usually a diagram ...
Furnace is turning on and off1/9/2010
  Q: my furnace keeps turning on and off repeatly 4 times until it locks out. it's a ultra v tech 91 ...
  A: David, Condensation dripping down into your furnace is not a good thing, what's it getting wet? When ...
ac in two story house1/9/2010
  Q: During this cold weather, I have to leave upstair bedroom doors open in order for the rooms to get ...
  A: Erik, The reason your bed rooms heat better with the door open is because there is no return air ...
gas furnace not automatically switching on/off1/9/2010
  Q: Our gas furnace does not turn on unless I switch the wall switch (thermostat) off and then on again. ...
  A: Jim, I'm not there, I can't see what controls your furnace. You didn't answer about if the furnace ...
auxiliary vs. emergency heat1/9/2010
  Q: We have a Rheem heat pump. During this extremely cold period, it has struggled to maintain the house ...
  A: Murice, A heat pump produces a warm air that might be warm enough to heat the house if it's not down ...
Gas Furnace1/8/2010
  Q: My force hot air gas furnace makes a loud explosion type noise.Its a Carrier about 20 yrs old .I had ...
  A: Bill, It sounds like delayed ignition, That's when too much gas flows into the combustion chamber ...
Heat Pump vs Electric Furnace1/8/2010
  Q: We are renovating a old home, about 3380 sq feet including 1200 sq feet basement, and we are trying ...
  A: Heidi, If air conditioning is not a consideration I wouldn't want a heat pump why put up with the ...
Heat Pump Noise On Start1/8/2010
  Q: I get a rough sounding noise from my upstairs HVAC (heat pump) when it is on heat mode (no problem ...
  A: Glenn, The only moving thing inside is the blower assembly, the motor should run on a slower speed ...
Heat Pump Noise On Start1/8/2010
  Q: I get a rough sounding noise from my upstairs HVAC (heat pump) when it is on heat mode (no problem ...
  A: Glenn, I'm not sure what type unit your talking about? If it's a split system there is a unit inside ...
natural gas heater1/7/2010
  Q: I installed a 30,000 btu natural gas heater in my shop and the heaters calls for no more than 1/2 ...
  A: Robert, I just can't follow? The heater should have a combination gas valve and pressure regulator ...
thermostat trouble shooting1/7/2010
  Q: I have a janitrol heat pump. Its cold so im on E heat. Heat kicks in heats good but after the heat ...
  A: Matt, The way a heat pump should work. When you have the thermostat set to heat and a set tempature ...
Carrier Furnace1/7/2010
  Q: We had a home built in 1986 with a Carrier High Efficiency Furnace and we are looking to replace the ...
  A: dbowles, Carrier is the equivalent because it has the same name,Payne or Bryant is next best in ...
cold air return clearance1/7/2010
  Q: How much clearance should I maintain in front of my cold air return? I would like to put a piano in ...
  A: Julie, The most important thing is that you need all of the existing return air ("cold air return"). ...
humidifier1/6/2010
  Q: I have an Aprilaire 560 whole house humidifier and it isn't working. I was just troubleshooting it ...
  A: Rob, The humidistat turns the water on and off automatically, There can be about a 5% differential ...
HEIL DC901/6/2010
  Q: we have the heil heating that is electric i belive. the problem we are having is fan wont kick in, ...
  A: Vipul, Every reference I found says that a "HEIL DC90" is a gas forced air furnace. I don't know ...
Furnace Problem1/5/2010
  Q: We had a Dependable ninety two furnace installed 4 years ago. I cannot find a model number. We ...
  A: Donna, I don't know your furnace but it sounds like your blower motor may be faulty? There are no ...
2-blink code on American Standard - no heat1/4/2010
  Q: this morning it was quite chilly in our house. We have an American Standard furnace. It has a ...
  A: Dana, Let's try it this way, forget about the blinking light. The way it should work. I don't know ...
2-blink code on American Standard - no heat1/4/2010
  Q: this morning it was quite chilly in our house. We have an American Standard furnace. It has a ...
  A: Dana, When the LED blinks immediately after it try's to light is when you want to count the number ...
2 speed furnace blower1/4/2010
  Q: How is a 2 speed furnace blower suppose to work? I have a 2 stage(Aux & Em.heat) electric furnace ...
  A: Greg, When your unit is in the low stage the blower should run slower, in high stage faster, when ...
Central Heating System1/3/2010
  Q: I am having problems with my heat. The thermostat is set to 75 the heat will blow warm for a minute ...
  A: Meaghan, The living room could be blocked, disconnected, maybe even have a damper in the pipe? It's ...
Heat pump runs everyday non-stop1/3/2010
  Q: I have a york heat pump unit runs everyday non-stop 24/7 when the temperture outside is 20 degress ...
  A: Jesse, A heat pump is just an air conditioner that reverses it's flow. In the heating mode the coil ...
Electric Heat1/3/2010
  Q: I have an American Standard (Trane Company) furnace (Model TWV030B10A1/1/3 HP)I have had a digital ...
  A: Mark, When the thermostat calls for heat the heat pump turns on, if after a short running time the ...
American Standard Heat/Air Unit1/3/2010
  Q: When it is really cold outside and we run the central heat upstairs,(we have two separate units, 1 ...
  A: Mindy, When the thermostat calls for heat, first the heat pump trays to satisfy the thermostat, if ...
furnace1/2/2010
  Q: i have an dgat075adc coleman furnace that is not coming on. one day transformers and relay started ...
  A: Dennis, If "no my furnace does nothing" it's because the inducer isn't running, the inducer has to ...
Furnace filter1/2/2010
  Q: I have a Ruud forced air furnace. I want to replace the filter. It is in an area below the furnace. ...
  A: Dorothy, The arrows should point up towards the furnace, the arrows should point away from the open ...
heat pump auxiliary heat coils- current draw1/2/2010
  Q: I suspect a problem with auxiliary coils staying on because of a 40% increase in my electric bill. ...
  A: Jim, If your thermostat is calling for heat the heat coils will be on and you will feel heat coming ...
High Efficiency furnace wont stay on and achieve the set temp1/1/2010
  Q: I have a high efficiency direct vent furnace that isnt acheiving the set thermostat. the furnace ...
  A: Colin, Observe the cycle means you set the thermostat several degrees above the room tempature, then ...
comfortmaker furnace1/1/2010
  Q: I have a comfortmake furnace that was installed in Nov of 1995. We had to have the top motor, ...
  A: Amy, I don't know exactly what your furnace is size wise but you could buy a new furnace for $1,200. ...
comfortmaker furnace1/1/2010
  Q: I have a comfortmake furnace that was installed in Nov of 1995. We had to have the top motor, ...
  A: Amy, OK "stage" not "gauge". Yes to your question " Could they have done something when they put in ...
High Efficiency furnace wont stay on and achieve the set temp1/1/2010
  Q: I have a high efficiency direct vent furnace that isnt acheiving the set thermostat. the furnace ...
  A: Colin, I need a better discription of exactly what the cycle is from the thermostat first calling ...
comfortmaker furnace1/1/2010
  Q: I have a comfortmake furnace that was installed in Nov of 1995. We had to have the top motor, ...
  A: Amy, I never heard of a "three guage furnaces"? I don't know what that is? Also I don't know what an ...
100,000 btu furnace12/31/2009
  Q: I had a 120,000 btu Bryant 80% eff. furnace that was 21 years old. Contractor replaced with 100,000 ...
  A: Logo, Your new furnace is the same size BTU wise as the old furnace. I don't know about blower CFM? ...
bad smell from evap coil on defrost12/29/2009
  Q: What to use to clean evap coil? ANSWER: Bobby, "evap coil on defrost" have you got? ---------- ...
  A: Bobby, How about some information? What type of unit is your evaporator coil used in? Is it ...
aprilaire humidifer 70012/29/2009
  Q: the rh in my house is around 33% rh reported on my gauge. my 1 month old humidifier when the green ...
  A: Tom, It's normal for heat to dry out the moisture in anything, just like a clothes dryer dry's the ...
venting exhaust fan12/29/2009
  Q: I am concerned that the existing exhaust fans in my bathrooms are not properly vented. What is the ...
  A: Diana, I'm not sure what type of proof your looking for? The best way and most positive way is to ...
Direct vent furnace Heat only12/29/2009
  Q: I have a wall direct vent furnace made by Empire. My old Mercury thermostat broke. I cannot find a ...
  A: Randy, If your direct vent wall furnace has 110 volt electric power connected to it you can use any ...
Propane Furnace Temperature12/28/2009
  Q: My furnace is a Heat Pump/Propane back up combo. I recently begun measuring the temperature of the ...
  A: Jim, Normal tempature is between 110 and 150 at the furnace heat exchanger. The fan control which ...
Propane Furnace Temperature12/28/2009
  Q: My furnace is a Heat Pump/Propane back up combo. I recently begun measuring the temperature of the ...
  A: Jim, I don't Know what your furnace consists of as far as controls go? Most normal furnaces are ...
Goodman Heater\AC12/28/2009
  Q: I have a goodman Central air system installed in my house 1.5 years ago 95% eff. and now the heater ...
  A: Steve, I can't tell what the furnace is doing from your description? Can you be a bit more precise? ...
Gas pack cycles on and off12/27/2009
  Q: Dealing with a Goodman 3 ton gas pack. The unit burners cycle off and on every two to three minutes ...
  A: Morcellous, It sounds like the limit switch is doing it's job which is shutting the burner off if ...
Janitrol gas heating system12/27/2009
  Q: I have a Janitrol a/c and heating system that is gas and was installed in the house when built in ...
  A: Steve, OK, I guess I should have taken the time to question you a little more? When you referred to ...
Trane Roll out switch open with furnace off12/26/2009
  Q: I have a 1998 Trane YCX unit, the heat went come on and the IGN light indicator shows a flame ...
  A: Chris, I don't know which two wires you want to connect? There is most likely more then one ...
Very old Quaker radiant heater propane conversion?12/26/2009
  Q: I removed an old Nat.gas Heil-Quaker from the hallway in my 100yr old home and want to use it to ...
  A: Mike, I doubt if You could find a conversion kit for a "Heil-Quaker RVS-658A ser#39207-J59" that's ...
Janitrol gas heating system12/26/2009
  Q: I have a Janitrol a/c and heating system that is gas and was installed in the house when built in ...
  A: Steve, You can continue, Put the wire back on the thermostat and trace it to it's next connecting ...
Janitrol gas heating system12/26/2009
  Q: I have a Janitrol a/c and heating system that is gas and was installed in the house when built in ...
  A: Steve, I'd be looking at the thermostat and the thermostat wiring from the furnace to the ...
furnace humidifer12/26/2009
  Q: I have an Aprilair 560 on the furnace. #1. should the flapper in the duck work be opened or closed ...
  A: Anne, 1. The flapper should be open. 2. I don't know what "copper handle above the hot water tank" ...
Miller Heat Pump12/25/2009
  Q: I was outside and heard the heat pump making the usual noise but it seemed loader than normal, went ...
  A: Louie, I'm not sure exactly what's going on from your discription? Smoke from your condensing unit ...
Comfortmaker RPJ II12/25/2009
  Q: First the induced vent draft blower, next the igniter glows, next the gas valve opens(clicks and ...
  A: Loren, It sounds like the flame sensor and possibly the igniter needs to be positioned a bit closer ...
Gas heater--Draft motor will not completely start12/24/2009
  Q: I have two Goodman GMP series furnaces (about 1995 models)installed at the same time in 1996 and ...
  A: Robert, If the motor runs removed from the unit when you apply 120 it should also run mounted to the ...
Gravity Furnace Repair.12/24/2009
  Q: I have a gravity furnace that wont fire up. the pilot light is on. tried turning thermostat up and ...
  A: Richard, You can buy any control you want for the furnace. You probably need to buy off of the ...
Gravity Furnace Repair.12/24/2009
  Q: I have a gravity furnace that wont fire up. the pilot light is on. tried turning thermostat up and ...
  A: Richard, It all depends on the controls? How do you light the pilot light? Is it just a manual ...
correct size of pvc exhaust pipe12/23/2009
  Q: I currently have 2 inch pvc pipe running behind finished walls in my basement connecting my old ...
  A: Lee, I don't have any specifications on the vent size of a "Trane xv95" furnace. If the collar size ...
Musty odor12/22/2009
  Q: Three months ago we had a new unit put in and last month had all of the duct work replaced. Every ...
  A: Julia, I don't know what you mean by "new unit"Could you describe it's type? Gas, Electric, Coal, ...
Undersized supply lines. Is it illegal?12/21/2009
  Q: I've been having a nightmare of a time dealing with a fairly reputable furnace company around here. ...
  A: Brad, Are you saying the supply opening/plenum that the furnace connects to is only 12"x12"? Are you ...
Undersized supply lines. Is it illegal?12/21/2009
  Q: I've been having a nightmare of a time dealing with a fairly reputable furnace company around here. ...
  A: Brad, I don't have any idea what all exactly your heating system is? A "counterflow furnace", Where ...
RANGE OF PRICES FOR HEAT STRIPS THAT GOES IN MY 2 AND HALF FURNACE12/21/2009
  Q: I WAS WONDERING IF YOU MIGHT KNOW THE PRICE RANGE OF HEAT STRIPS THAT GOES IN MY FURNACE.WE HAD A ...
  A: Amy, I don't know where your at, I'll bet heat strips cost more in Alaska then Texas? Ether one you ...
Sewer smell from A/C vents(Downstairs only)12/19/2009
  Q: I noticed sewer smell from A/C heating vents about three weeks ago.When the heat is off, the smell ...
  A: Reiko, I have no idea other then the one I mentioned, it's the best I can do from where I'm at, I'm ...
furnace problems12/19/2009
  Q: amana unit installed in 1990 model gse75dn4c Located in south Louisiana. At times the temp. will ...
  A: James, I'm not sure exactly what your Amana furnace "type" is? I don't have reference material for ...
forced air furnace replacement BTU question12/18/2009
  Q: Trying to figure out correct BTU size for purchasing new furnace. Total living space of my 15 year ...
  A: Jim, When you set your thermostat to 71 the furnace probably kick on when the temperature drops to ...
Furnace wont light12/18/2009
  Q: I have a Goodman furnace and it wont turn on. I came down and took the inspection plate off (I have ...
  A: Dan, You need to check the 24 volt circuit from the gas valve back to the induced draft blower ...
Furnace wont light12/18/2009
  Q: I have a Goodman furnace and it wont turn on. I came down and took the inspection plate off (I have ...
  A: Dan, If the igniter glows and the gas flows theres' going to be fire. Try match lighting the burner ...
Furnace wont light12/18/2009
  Q: I have a Goodman furnace and it wont turn on. I came down and took the inspection plate off (I have ...
  A: Dan, What's an "HSI?". The way it works, first the induced vent draft blower, next the igniter ...
forced air furnace replacement BTU question12/17/2009
  Q: Trying to figure out correct BTU size for purchasing new furnace. Total living space of my 15 year ...
  A: Jim, Right now your heating your home with 92,000 BTU.s. If your home is adequately heated on the ...
BTU per Square foot12/17/2009
  Q: I have a 16 year old furnance that needs replaced, it is 100,000 btu. I got an estimate to replace ...
  A: Bev, It doesn't work by square feet, If your footage is 3,000 or 10,000 you probably wouldn't need ...
Goodman GMNT060-3B Furnace not working when temps drop below freezing12/17/2009
  Q: Good evening, We purchased this house last year (built 2004). I called a furnace repair service ...
  A: Jennifer, I'm pretty sure the proublem with your furnace is the "flame sensor". You can clean the ...
water maybe coming from furnace?12/16/2009
  Q: I have an old 1970s gas furnace and I'm getting water coming down around it. The water is sliding ...
  A: Scott, You didn't say how much water your getting or if the water flow slows down when the furnace ...
water maybe coming from furnace?12/16/2009
  Q: I have an old 1970s gas furnace and I'm getting water coming down around it. The water is sliding ...
  A: Scott, It's very possible that the vent pipe that goes up and out the roof might condensate and ...
FG6RA 072C-12A Gas furnace question12/16/2009
  Q: I have a new (less than 5 years old) TAPPAN furnace "FG6RA 072C -12A" in my basement and its about ...
  A: Rick, I don't have a manual on your "TAPPAN furnace "FG6RA 072C -12A". They way it works on most ...
Furnace problem12/15/2009
  Q: When my thermostat kicks on, instead of the main burners iginiting there is just a buzzing sound ...
  A: Dan, I don't know anything about your furnace type except it's brand is "Freidrich" and it's "old", ...
Replacing Gas Furnace12/15/2009
  Q: Our house was built in 1942 in San Diego (coastal, not inland). We have an old Consolidator gas ...
  A: Missy, You can call your building department and ask the code question's. Every municipality has a ...
insulating basement ceiling12/15/2009
  Q: I am in the process of finishing my basement. I am insulating the ceiling with R-19 unfaced ...
  A: Kevin, You can apply fiberglass insulation to heating ducts. Fiberglass can be applied to the ...
Lennox G40UH12/15/2009
  Q: A young family I know has a Furnace that turns off and on. When it's on it run's hot It's about 9 ...
  A: Leesa, "flame sensor", "pressure sensor" and "open ignitor". That's not what you said before, you ...
Lennox G40UH12/14/2009
  Q: A young family I know has a Furnace that turns off and on. When it's on it run's hot It's about 9 ...
  A: Leesa, I think your power to the furnace is reversed? You really need an electrician or someone who ...
hot water heater downdraft12/14/2009
  Q: my new hot water heater is having a down draft problem,the plumber hooked it up and it was venting ...
  A: David, Not a very good description of the water heater vent pipe? No indication of where the water ...
Lennox G40UH "X" series heat turns off and on12/14/2009
  Q: A young family I know has a Furnace that turns off and on. When it's on it run's hot It's about 9 ...
  A: Leesa, A better description of what the furnace dose and doesn't do would help? "turns off and on" ...
Hot Water Heating System12/14/2009
  Q: I have two problems: 1. One zone valve does not seem to be cycling completely and sometimes gets ...
  A: Steve, You can take the motor off without removing the body, I'm not familiar with White Rogers ...
Rheeem Gas Furnace, 198612/14/2009
  Q: My furnace will not start sometimes without the reset button being pushed. It will cycle fine for ...
  A: Wayne, I don't know of an "L" type thermocouple? What's " Model #RGDA 125A-AR" is that the furnace ...
Air Return12/13/2009
  Q: Jim, I currently have a 100,000 BTU Carrier furnace in my garage in the San Francisco Bay Area. It ...
  A: Carl, What you need is 200 Inches of free air area going to the furnace for return air. A 13" x 13" ...
Smoke venting through gas furnace -- possible?12/13/2009
  Q: We have an older GE gas furnace in our basement. The furnace is vented indirectly through gaps ...
  A: Martha, What I don't know? Is 12 X 18 the inside or the outside? Dose the furnace vent and the water ...
Rheeem Gas Furnace, 198612/13/2009
  Q: My furnace will not start sometimes without the reset button being pushed. It will cycle fine for ...
  A: Wayne, I'm not sure exactly what type "reset button" is on your furnace but it sounds like you may ...
cam stat wiring12/12/2009
  Q: working on a old heating/air conditioning unit,gas line split and caused some wiring damage.in ...
  A: Charles, Your "fan and limit are like two separate controls, one is the fan control and one is the ...
Smoke venting through gas furnace -- possible?12/12/2009
  Q: We have an older GE gas furnace in our basement. The furnace is vented indirectly through gaps ...
  A: Martha, Your furnace and for that matter your water heater (water heater on a smaller scale) both ...
repalcing expansion valve12/12/2009
  Q: I have a TRANE 3 1/2 ton 13 sear air unit purchased 3 yrs ago. Heat would not come on this season. ...
  A: Lori, I don't know your unit but he coulden't replace the valve in fifteen minutes. The trouble with ...
Smoke venting through gas furnace -- possible?12/12/2009
  Q: We have an older GE gas furnace in our basement. The furnace is vented indirectly through gaps ...
  A: Martha, Your question begins with a confusing statement, "The furnace is vented indirectly through ...
Central Air & Heat Units12/10/2009
  Q: I am in the market to be a new residential central air&heat unit. I currently have a York all ...
  A: Misty, In my opinion all residential heating and cooling units are pretty much equial if you ...
American Standard Furnace12/10/2009
  Q: 4 year old furnace, Freedom 80, Comfort R. Furnace runs normally for many hours, and then only ...
  A: francine, If the burner lights every time for a second or two every time it try's and then goes out ...
Goodman Heater Not Working12/10/2009
  Q: I have a 3 year old Goodman Heater/Air Conditioner combo model number GM581405DNBA serial number ...
  A: Adonica, There could be a number of things that cause your furnace not to work. When the thermostat ...
hot water heating system12/9/2009
  Q: I am wondering if you could point me in the right direction. I moved into a home with a hot water ...
  A: Angela, It sounds like the unit in the attic is a fan coil unit. The blower may run but some place ...
limit cycling??12/8/2009
  Q: I have a 1995 Coleman Evcon gas (propane) downflow furnace in my trailer. The green light flashes 4 ...
  A: Ginger, When the thermostat calls for heat the blower is on a time delay switch and is set for the ...
limit cycling??12/8/2009
  Q: I have a 1995 Coleman Evcon gas (propane) downflow furnace in my trailer. The green light flashes 4 ...
  A: Ginger, I assume it's the limit switch but it's most likely doing what it is supposed to do which is ...
hot water hvac problem12/8/2009
  Q: I am wondering if you could point me in the right direction. I moved into a home with a hot water ...
  A: Angela, Information is nice! When hot water is used for heating purposes it comes from a hot water ...
Severe headaches12/7/2009
  Q: We have a gas heater (central heating and cooling) and I am the ONLY one in the house that wakes up ...
  A: Rene, Carbon monoxide, and no humidity in the house, either one is not good for you but they might ...
heat air handler breaker being triped12/7/2009
  Q: I have a RHEEM Classic XlV Air Handler - - - - Model No. RBHK-24J18sfA Serial No. Tm460400974 - - ...
  A: Robert, I don't know what breaker is tripping? I would assume that the air handler operates on a ...
Grandaire Package Unit Heat not operating properly12/7/2009
  Q: I have a 2007 Grandaire 42,000 13 seer Package Unit. It has never worked properly since we ...
  A: Judy, I'm not sure what all your unit has for heat? I'm assuming that it's a heat pump? A heat pump ...
Opinion on a bathroom heater12/6/2009
  Q: Greetings from another expert at All-Experts (I'm in Excel software). I'm having an electrician out ...
  A: Nathan, I'm not an expert on electric heater manufactures. I have used Broan products for years and ...
kenmore refrigerator12/6/2009
  Q: we have a model 106.9600511 several years old, but just started running all the time, does shut of ...
  A: Deb, I don't do refrigerators, I'm in HVAC, Heating and Air Conditioning. But, Pull the refrigerator ...
1950, Gravity Fed ,Janitrol Furnace12/6/2009
  Q: I turned my thermastat to 68 degrees and the heat didn't come on. (It's 58 degrees in my 1950 house ...
  A: Chris, You need a "Thermocouple" that's the little element that the pilot flame burns onto and ...
furnace is not consistently turning on12/5/2009
  Q: Jim, We are finding a similar problem with our furnace as a previous writer. The furnace runs fine ...
  A: Mark, I don't know what type of furnace you have? makes and model numbers don't help but efficiency, ...
GAS FURNACE12/4/2009
  Q: My gas furnace will turn off randomly, and not come back on! No blower, no nothing. Sometimes it ...
  A: jer, I don't know your particular furnace but this is how it works. First there has to be 110/120 ...
GAS FURNACE12/4/2009
  Q: My gas furnace will turn off randomly, and not come back on! No blower, no nothing. Sometimes it ...
  A: Jer, The first thing that happens when the thermostat calls for heat is the vent induced draft ...
limit or flame roll-out switch12/4/2009
  Q: i have recently installed a high efficient keep-rite down throw furnace with a 2 stage gas valve and ...
  A: Jeff, I don't follow exactly what "furnace may be pushing too much air through my duct work so i ...
GAS FURNACE12/4/2009
  Q: My gas furnace will turn off randomly, and not come back on! No blower, no nothing. Sometimes it ...
  A: jer, "main switch on the furnace"? is that the power from the breaker,outside the furnace, service ...
Gas coming on, no ignitor!12/3/2009
  Q: What happens is the furnace comes on, the ignitor coil glows, then grows dim and once its out the ...
  A: James, How do you know the gas comes on after the glow coil goes out? Could it be that the glow coil ...
furnace wont ignite12/3/2009
  Q: Last night my furnace stopped working. I went through the procedure to restart it but nothing. It ...
  A: Robert, When you say "I went through the procedure to restart it but nothing" Do you mean nothing? ...
Cold air return12/2/2009
  Q: I have a 12'x18' finished attic room with an open stairwell. There is a supply duct in the attic ...
  A: Chuck, Every supply air in (I assume it's a house) needs to have a path to a return air somewhere in ...
Lenox furnace12/2/2009
  Q: Our furnace works fine when set on the ON setting, when we try to put it on AUTO, it gives off a ...
  A: Cyndi, Not a real clear pitcher of what's going on inside the furnace control compartment? My guess ...
Igniter glows but gas does not light12/1/2009
  Q: while in the 'auto' mode: Igniter glows. no gas ignition from manifold. fans are running and igniter ...
  A: Steve, You say "Got 24 volts", You say "Igniter glows". The gas valve is like a light bulb in that ...
HVAC Smell12/1/2009
  Q: I've been experiencing a smell in our heating system. We have a heat pump system less then 2 years ...
  A: Shane, When you said the condensate "Drains directly outside the house" I thought you might be ...
york furnace12/1/2009
  Q: I have a high efficiency York furnace that is 2 years old. Recently we have had problems with it ...
  A: Jessica, Rather then "blocked hose, a blocked vent", Obstructed might be a better word? You can ...
HVAC Smell12/1/2009
  Q: I've been experiencing a smell in our heating system. We have a heat pump system less then 2 years ...
  A: Shane, I don't know what your "heating system" consists of or where in the house it is located? ...
Janitrol Pressure Switch11/30/2009
  Q: I have a janitrol hvac. I am not getting any power on the pressure switch. What should I do next? ...
  A: Victor, So what dose a one blink code on the legend stuck on your furnace say 1-blink means? How it ...
furnace rheem 2001 criterion 11-70%-80%gas11/30/2009
  Q: parts were changed on my furnace in June 2009. the ignitor, and the induced draft blower. when it ...
  A: Sam, Sorry to hear about your negative dental experience, Been there, Done that. Sorry I can't help ...
zoned heat need thermostat11/30/2009
  Q: I have a trol a temp system in my house. this is a heat only system. the problem i have is with ...
  A: Kyle, I'm not really into zoned systems. I think they call it a controll panel rather then a ...
How many kw should backup electric heating element have if place in the attic11/29/2009
  Q: We live in a cold climate where the winter temperatures can reach -25 Celsius (-13 Fahrenheit). We ...
  A: Jane, The electric heat strips are inside the air handler or a duct/casing attached to the front of ...
How many kw should backup electric heating element have if place in the attic11/29/2009
  Q: We live in a cold climate where the winter temperatures can reach -25 Celsius (-13 Fahrenheit). We ...
  A: Jane, I don't know exactly what you have going there in the attic and what you have outside? This is ...
furnace11/29/2009
  Q: I WAS OUTSIDE WHERE MY FURNACE VENT COMES OUT AND SMELL A STRONG ODOR I THINK WAS CARBON ...
  A: Mark, "strong" is difficult to define? "strong" has a different degree of meaning to different ...
home ac compressor11/29/2009
  Q: I had to leave my wife a year ago because of personal reasons concerning a stepson who would not ...
  A: Buddy, If there was something wrong with the compressor the compressor would shut down. If the ...
zoned heat need thermostat11/29/2009
  Q: I have a trol a temp system in my house. this is a heat only system. the problem i have is with ...
  A: Kyle, The damper motors have an end switch, when the thermostat calls for the damper motor activates ...
How many kw should backup electric heating element have if place in the attic11/29/2009
  Q: We live in a cold climate where the winter temperatures can reach -25 Celsius (-13 Fahrenheit). We ...
  A: Jane, I don't know what type of problems your having with water leaks in your ceiling and walls? ...
rheem ac/heating system11/28/2009
  Q: i have a 15 year old system by Rheem that i need to rewire but do not have the wiring diagram. ...
  A: Vicki, If there is no wiring diagram pasted on the inside of the blower compartment door/cover I'll ...
furnace roll out11/28/2009
  Q: I have a 1982 duo-therm furnace that has been checked for carbon monoxide leaks and it is at 0. ...
  A: David, The furnace man you asked needs to change professions. When the burner lights two things ...
goodman central heat/ac11/27/2009
  Q: 2 1/2 ton unit fuse was blown/inside unit,I replaced. the emg. heating coils are staying on ...
  A: Greg, The inside air handler is on a 110/120 circuit that is protected by breaker in the main house ...
Residential A/C Operation Guideline11/27/2009
  Q: What are the guidelines verses any myths regarding what temperature NOT to startup a residential ...
  A: David Cold weather has never been a concern of mine as far as starting up an outside AC unit. There ...
openstair case in older home/gas $ in winter11/26/2009
  Q: In older home, open staircase. 3 bdrm up, use only 1. What is best - leave vents open in 2 unused ...
  A: Grace, If the downstairs has a heated space above it then there is no heat loss at the downstairs ...
Bathroom fan11/26/2009
  Q: The winters here (Winnipeg,Canada)are brutal and long.I am getting my bathroom's outside facing wall ...
  A: Michael, There are bathroom fans and there are bathroom fans, same thing applies to wall's and ...
Duct size11/25/2009
  Q: Jim, I have a simple problem I can't seem to get a clear answer on. My son's bedroom, farthest from ...
  A: Mark, I don't think I can do any good? I can't see what's what and new things keep emerging. The ...
Duct size11/25/2009
  Q: Jim, I have a simple problem I can't seem to get a clear answer on. My son's bedroom, farthest from ...
  A: Mark, OK I have a pretty good picture of what your system is. You have a main duct trunk line is ...
delayed ignition11/25/2009
  Q: i have a 20 yr old gas furnace with a stand alone pilot and when it starts it make a loud poof ...
  A: Ron, The pilot may not be positioned close enough to the burner gas coming out? The channel that ...
Furnace and gas fumes11/25/2009
  Q: My mother lives in a small 12x76(??) mobile home built in the 70's. The furnace is in the narrow ...
  A: Barbara, Your right it is crazy unless the furnace vent pipe gets stopped up or the furnace can't ...
Furnace does not come on always/consistently11/24/2009
  Q: I have a Rheem Furnace (Model # RGDG-12EARJR). I beleive the furnace is about 16 years old. Last two ...
  A: Sundra, Furnace makes and model numbers don't do anything for describing the furnace or it's ...
Duct size11/24/2009
  Q: Jim, I have a simple problem I can't seem to get a clear answer on. My son's bedroom, farthest from ...
  A: Mark, I have no Idea what the ducting for your furnace is? You mention sizes and things like "The ...
Trane XE90 furnace11/24/2009
  Q: My sister bought the house about year ago, last week she toll me The circulation blower does not ...
  A: Hai Le, It sounds like the blower relay is faulty? I don't have a manual either on your sisters ...
Goodmand Furnace cuts off when 40 degrees outside11/23/2009
  Q: Goodman / GMC 125-5 (basic Goodman) gas furnace in an unconditioned crawl space with concrete floor ...
  A: Ron, I guess there might be a lot of different scenarios that might cause the furnace to shut down ...
Lennox heat pump and air handler11/23/2009
  Q: I have a 1700 sq foot split level bungalow. Will a 2 ton Lennox XP-14-024 heat pump with a ...
  A: Raj, The amount of heating and cooling BTU's depends on structure of your "bungalow" and it's ...
Coleman evcon11/23/2009
  Q: I have a Coleman evcon furnace that has been giving me some problems for about a year now. It has ...
  A: Justin, It sounds like a faulty blower motor, it could be a start capacitor but I would bet on a bad ...
Carrier heating unit problem11/22/2009
  Q: I have a Carrier AC/Heating unit. The model is 33GM40AQ036 and the serial is 3484A18684. The unit is ...
  A: Arthur, Let me try this way, Your unit and model number means absolutely nothing to me. Just give ...
american standard freedom 90 propane furnace11/22/2009
  Q: our furnace is 9 years old. It is american standard freedom 70 propane with one zone. Recently, ...
  A: Sherry, As you look into the burner compartment, the igniter is on your right, the flame sensor is ...
Carrier heating unit problem11/22/2009
  Q: I have a Carrier AC/Heating unit. The model is 33GM40AQ036 and the serial is 3484A18684. The unit is ...
  A: Arthur. First, I don't have any easy way of researching a "Carrier model 33GM40AQ036 heating and ...
Cold room11/22/2009
  Q: Jim. I have a mainfloor room that doesn't get warm.The heater is in the basement at the opposite end ...
  A: Don, All heating systems are not the same no matter where you live. If you have a basement it's a ...
auxiliary heat11/22/2009
  Q: Barnhart, I have two questions. First, I have a wood burning fireplace that is connected to my air ...
  A: Brent, It all sounds like some kind of nightmare to me? I don't know what you have in the garage? a ...
Carrier 58sx, no pilot light or blower operation11/21/2009
  Q: I have a Carrier 58sx. When the thermostat is set on heat the only thing that runs is the exhaust ...
  A: Salvatore, I don't have a service manual on a "Carrier 58sx" I would think the blower would run but ...
packaged a/c with electric heat11/21/2009
  Q: i have a 3 ton pckaged a/c with electric heat. my first problem is when i connect the tstat ...
  A: Aaron, I think you have something crossed up with the 24 volt electric circuit, either in the ...
A/C wall units, average run times11/20/2009
  Q: I can't ask Eric to fill in his questions below because he is booked up. Temps outside: 75-100, ...
  A: Steve, I don't know "Eric Campion" from Adams all Fox. How long an air conditioner runs depends on ...
hvac heating issues11/20/2009
  Q: (im an 'expert' in the saltwater aquarium section)... I have a rooftop hvac unit that is old. (20 ...
  A: Bill, It sounds like a high limit switch? I'm not sure which kind you have on your unit? A twenty ...
heating11/20/2009
  Q: I HAVE A 1993 RHEEM AC AND HEATING UNIT I REPLACED THE FAN LIMIT switch BUT THE UNIT TURNS ON AND ...
  A: Carlos, I don't understand your description? When the thermostat calls for heat the induced draft ...
Furnace blowback11/19/2009
  Q: I have a gas furnace with an electronic regulator. The system seems to work correctly when you just ...
  A: Cristhian, Make sure the pilot flame burns onto the burner where the gas comes out. Make sure all ...
Condensate pump is making a loud noise11/19/2009
  Q: I recently had a HVAC tech come out to perform a routine maintenance on our home furnace before ...
  A: Robert, It sounds like your condensate pump has a bad bearing causing the pump to run off balance ...
Taco cirulator11/19/2009
  Q: Greetings, The ciruclator (1985) on my parents furnace (1961) was making a noise. The plumber they ...
  A: Mike, The pump that they used for a replacement I think has a built in transformer used for an ...
fan doesn't run on heat11/18/2009
  Q: The fan does not run on heat, not on auto or when I just turn it to on. But the fan does run on a/c ...
  A: Debbie, You can check the thermostat by taking the R and W post wires off of the back of the ...
gas wall furnace11/18/2009
  Q: i have a gas wall furnace in a home i am just now buying, my husband and i are wanting to know what ...
  A: Katie, Is the furnace installed in between a 2x4 stud wall? What is the vent size opening on top of ...
gas wall furnace11/18/2009
  Q: i have a gas wall furnace in a home i am just now buying, my husband and i are wanting to know what ...
  A: Katie, Your question is confusing, I don't know what you have exactly? Is it a truly a "wall ...
fan doesn't run on heat11/18/2009
  Q: The fan does not run on heat, not on auto or when I just turn it to on. But the fan does run on a/c ...
  A: Debbie, The fan is controlled by a blower control/fan center, circuit board? I'm not sure what your ...
Central Heating and Air11/18/2009
  Q: Our ac unit is an outdoor model and the heat or air comes through the floor vents. Our is when we ...
  A: Sherry, There are lot's of different heating and air conditioning units that could fall under the ...
replacing pilot light/thermocouple11/15/2009
  Q: I have a Kenmore unit made by Inter-city NCC5100BHB1 The repairman said the pilot ...
  A: Steve, There are hundreds of different spark igniters maybe thousands over the years. I don't have ...
burners dont light11/15/2009
  Q: I have a york furnace model number P2URD16N07501A..vent motor comes on, ignitor comes on,glows ...
  A: Derek, Ah! What a difference it makes when you get all of the information. Now that I know that the ...
Replacing H&AC system11/14/2009
  Q: We are living in a 12 yr. old manufactured home for the past 5 yrs. We had the furnace ignitor ...
  A: Sharon, SEER rating is based on the amount of electric power used by the outside condensing unit. ...
furnace11/14/2009
  Q: I am thinking of purchasing a carrier infinity 96 furnace what should i be looking for to add ...
  A: Glen, You need a compatible thermostat that can operate the equipment that you end up with. I think ...
american standard freedom 70 propane furnace11/14/2009
  Q: our furnace is 9 years old. It is american standard freedom 70 propane with one zone. Recently, ...
  A: Sherry, The way it works or should work, When the thermostat calls for heat the first thing that has ...
Fridge not cooling11/14/2009
  Q: It's about 2 years old and has always worked fine. Just recently the fridge hasn't been cooling ...
  A: Bryan, Refrigerators are not my area of expertise, I was just trying to pass along some of my own ...
burners dont light11/13/2009
  Q: I have a york furnace model number P2URD16N07501A..vent motor comes on, ignitor comes on,glows ...
  A: Derek, When you hear the gas valve click or the igniter glows have a flame from one of those "BIC" ...
Coleman Evcon heater11/13/2009
  Q: In the summer my a/c worked great and as it started to cool off and I turned the heat on my heat ...
  A: Daniel, There is a blower relay inside your unit, the blower relay,fan control center turns the ...
Millivolt gas valve and millivolt pilot assembly kit11/13/2009
  Q: Have a 50 yr. old Coleman Gravity Floor Furnace. Pilot light won't stay on. Was told I need a ...
  A: Brenda, There are a few different ways that your floor furnace control system might be setup? Most ...
Fridge not cooling11/12/2009
  Q: It's about 2 years old and has always worked fine. Just recently the fridge hasn't been cooling ...
  A: Bryan, Pull your fridge out away from the wall, take the back panel off that covers the condenser ...
American Standard Brillant Fire Space Heater11/12/2009
  Q: Model V600 141 stopped working on it's own, I now need to tap the gas control with a soft hammer, to ...
  A: Keith, If there is nothing on the gas valve itself then I think your out of luck and need to call ...
Janitrol gravity furnace11/12/2009
  Q: Good morning Jim, I have an older Janitrol gravity feed gas furnace, the high limit switch is ...
  A: Brent, I don't think you can do any good over the phone, Johnstone deals pretty much with catalog ...
natural gas hot water furnace won't shut off!11/12/2009
  Q: I have a National U.S./ Crane hot water furnace that will run constantly! I have replaced the ...
  A: Dave, It's a "Hot water boiler". There are several different way's a boiler might be controlled ...
Janitrol gravity furnace11/12/2009
  Q: Good morning Jim, I have an older Janitrol gravity feed gas furnace, the high limit switch is ...
  A: Brent, Janitrol sold it's name back in the early 80's, basically it's Goodman now but that won't ...
Goodman Furnace Operation11/11/2009
  Q: I have a Goodman Heater, Dependable 92, Model No. GUN 075-3, Serial # 911003463. When I turn on the ...
  A: Lynn, I think the GUN 075-3 is a gas fired furnace, Furnace companies change models ever year or ...
Sunbeam wine cooler11/11/2009
  Q: Two years ago when my daughter was married she received a wine cooler. Jenny, didn't need or want so ...
  A: Keith, I'm a retired heating and air conditioning contractor, you probably know more about wine ...
HVAC11/10/2009
  Q: My furnace needs to be replaced. We are considering whether to get a central air + heat system or ...
  A: Sunder, You might consider fixing your existing furnace, there is nothing outside of a cracked ...
Follow up to Goodman AC ?11/9/2009
  Q: Jim Thanks very much you were very helpful. This tag also says it uses R22, Is that still in use ...
  A: Mike, R-22 is still in use or a substitute is available. If the unit has been contaminated to the ...
Wall furnace install11/9/2009
  Q: I read your response to the wall furnace in that bedroom. I live in a one bedroom where the bedroom ...
  A: Matt, I don't know what the conditions are? how much space are you trying to heat, how many rooms? ...
Central AC Unit11/9/2009
  Q: I have a Goodman Manuf. Central AC unit model # CK36-1A Seriel # 9304161326. I would like to know ...
  A: Mike, It's a three ton condensing unit. One ton of cooling equals 12,000 BTU's of cooling. Your unit ...
Central AC Unit11/8/2009
  Q: I have a Goodman Manuf. Central AC unit model # CK36-1A Seriel # 9304161326. I would like to know ...
  A: Mike, Goodman can change a model number every year, maybe even two or three times a year, I'd have a ...
Trane vs Rheem11/5/2009
  Q: Good Morning, We are needing to replace our 9 year old Bryant furnace due to a cracked heat ...
  A: Sue, There are a hundred or so different brands of furnaces, each brand has about fifty or more ...
heating unit11/5/2009
  Q: we have frazer johnston high effiency heating unit. gas does not blow up first and second time of ...
  A: John, I'm not sure what you mean by "gas blow up"? To me "blow up" means "explode" which can't be a ...
coleman evcon furnace11/5/2009
  Q: I have a coleman evacon furnace/ac unit. The a/c worked fine this summer the main fan turns on and ...
  A: Justin, You didn't say that the blower worked when the thermostat was set to fan on. With the new ...
coleman evcon furnace11/5/2009
  Q: I have a coleman evacon furnace/ac unit. The a/c worked fine this summer the main fan turns on and ...
  A: Justin, I'm not sure what your calling "the low speed fan"? Could it be the induced vent draft ...
Blower relay on airhandler11/4/2009
  Q: I have a 2004 grand air split system heat pump and the blower is not workin. I changed the ...
  A: Mike, If the the blower won't come on it could be the blower motor, the motor capacitor, the blower ...
Blower relay on airhandler11/4/2009
  Q: I have a 2004 grand air split system heat pump and the blower is not workin. I changed the ...
  A: Mike, The condensing unit doesn't have anything to do with the blower in the air handler. The 24 ...
igniter issue11/4/2009
  Q: We have a 1988 vintage Carrier Plus 90 condensing furnace. There has been on ongoing problem with ...
  A: Bob, The pilot dose need to engulf the electrode element with a steady non wavering flame. Make sure ...
car exhaust smell11/3/2009
  Q: we purchased a home that is 40 yrs old. Recently, I have been noticing a smell in the rooms over ...
  A: Julie, If you have a carbon monoxide detector in the room and your not getting anything you might ...
furniture covering wall vents11/3/2009
  Q: Jim, I am moving into a home that was built in 1973. The vents are placed in the walls about 6 ...
  A: Janice, You can just keep the love seat out away from the register about 1-1/2", you don't need a ...
gas smell from furnace vent11/2/2009
  Q: I smelled gas coming out of the furnace vent on the outside of my home. There was no smell in the ...
  A: Linda, Gas fumes smell like raw gas to a lot of people, If your gas meter is nearby you can get a ...
heater11/2/2009
  Q: I have a Trane XR80, natural gas,forced air furnace, about 7 years old. Right now it has an ...
  A: Rick, A "Temperature Limit Switch", there are several "Temperature Limit Switches" that open when ...
heater11/1/2009
  Q: I have a Trane XR80, natural gas,forced air furnace, about 7 years old. Right now it has an ...
  A: Rick, Everything you say that is happening is the normal way it should for a furnace that the burner ...
Furnace11/1/2009
  Q: The 24 volt transformer on my system burned out and smelled very bad. I replaced it with another one ...
  A: John, I think there is a "short" some place along the 24 volt circuit? You need to trace the 24 volt ...
dampness in roof11/1/2009
  Q: My 12 unit heating room is hot. The room is in the middle of the building below the ground floor ...
  A: Teresa, I don't know what the construction of your building is like? I'm assuming that the building ...
Taco cirulator10/31/2009
  Q: Greetings, The ciruclator (1985) on my parents furnace (1961) was making a noise. The plumber they ...
  A: Mike, First: If your mother has a service contract and it doesn't cover the controls, parts or ...
Furnace Vent10/31/2009
  Q: I have a 5 yera old gas furnace that has 2 white plastic pipes going out of the house - I believe ...
  A: Maria, Your furnace has a vent exhaust blower, the blower has a pressure switch that is activated by ...
Central Air Heater10/30/2009
  Q: I am in a second floor unit. The central heating unit is over 30 years old. It is housed in a ...
  A: Theresa, If your attic will accommodate a forced air furnace and adhere to the local building codes ...
Taco cirulator10/29/2009
  Q: Greetings, The ciruclator (1985) on my parents furnace (1961) was making a noise. The plumber they ...
  A: Mike, The pump shouldn't make any noise, it's not normal, I don't know what the wire business is? ...
B-vent10/29/2009
  Q: Can I B-vent an 80% furnace out the side if I put a power vent on it ANSWER: Jason, You probably ...
  A: Jason, You can do the same with a furnace, maybe I should say it can be done with a furnace. I ...
AmerStand Freedom 80 Furnace10/28/2009
  Q: My single-stage Freedom 80 Furnace is blowing continuously put producing no heat. Red light is ...
  A: Jeff, A high limit device is a control/switch that opens when the furnace over heats or doesn't vent ...
fan limit- high limit o/l10/27/2009
  Q: my fan limit switch is going out on high limit, I removed the furnace filter, checked the A coil and ...
  A: Bill, I think I must be missing something? Your saying that your eighteen year old furnace suddenly ...
Air ventilation10/26/2009
  Q: My girlfriend and her roommates new house has been built without a furnace or any air vents in the ...
  A: Adam, Lots of homes and commercial bldgs have hot water heat that flows through pipes and heats the ...
Gas Heating systems cycles on and off10/26/2009
  Q: I've signed a contract on an 18 yr. old house and my home inspection suggested immediate action for ...
  A: Karen, "short-cycling" could mean a lot of different thing's, there has got to be something else ...
A/C loud inside house10/25/2009
  Q: I Live in Florida, our house is 11 yrs old and I have barely ever even heard the unit inside before ...
  A: Shari, I don't know what the tonnage of the previous outside condensing unit was but I'm assuming ...
HVAC registers10/24/2009
  Q: how do i measure my openings to make sure i get the right size registers ? the house i bought has no ...
  A: Dominic, Register have dampers, Grills are just a face cover with no damper. Yes measure the opening ...
rheem gas furnace10/24/2009
  Q: I have a rheem gas furnace with induced draft as draft motor comes on but does not produce enough ...
  A: Chuck, I don't know what your furnace is as far as venting and combustion air supply? If it's a 90+ ...
need to find thermostat for very old floor furnace10/24/2009
  Q: I have a very old Sears model floor furnace. I've been having problems with it working sometimes ...
  A: Karen, There is only one thermostat that turns the floor furnace on and off. You either need a ...
Heat Exchanger Repair10/23/2009
  Q: I have a Lennox AirFlow furnace I am certain is the original furnace installed when the house was ...
  A: Ross, I don't recall the answer? I started out in the heating/furnace trade in 1951 and it's always ...
Using new Boiler for two zones and Domestic HW10/22/2009
  Q: I am currently running a 1959 American Standard Gas Boiler that I estimate to be approx. 500,000 Btu ...
  A: Howie, You can get a hot water heat boiler with domestic hot water supply ready to go, just connect ...
carrier 58MCA 120-2010/21/2009
  Q: 1993 install.furnace LED shows a rapid blinking light. label says 24V polarity reversed but furnace ...
  A: Warren, Did you try reversing the 24V polarity? You can check the 24 volt circuit by following the ...
retro fit historic Mouselium10/21/2009
  Q: I am looking to heat a Mouselium. The Boiler has been shut down. it is not insulated. I would like ...
  A: Doug, I can't really grasp your idea of useing PVC pipe for "distribution of heat" with a forced air ...
faint natural gas smell by air returns10/20/2009
  Q: We had a Bryant +95i high efficiency furnace installed 2 weeks ago. The furnace is in our basement. ...
  A: Dianna, Again it's not unusual for your water heater draft diverter to spill when the chimney is ...
faint natural gas smell by air returns10/20/2009
  Q: We had a Bryant +95i high efficiency furnace installed 2 weeks ago. The furnace is in our basement. ...
  A: Dianna, Your +95 furnace that vent's out through the wall also needs a like vent that brings air in ...
faint natural gas smell by air returns10/20/2009
  Q: We had a Bryant +95i high efficiency furnace installed 2 weeks ago. The furnace is in our basement. ...
  A: Dianna, I don't know exactly how your furnace, return air duct's and hallway all come together? I ...
Banging in ducts10/20/2009
  Q: Good morning. Our small bungalow was built in 1921, and our gas furnace is 57 years old with the ...
  A: Erin, Heating ducts 57 years ago or longer were tailor made to accommodate each individual ...
crossover duct10/20/2009
  Q: I live in a double wide manufactured home and our vents are located in the floor. A while back we ...
  A: Michelle, I don't know exactly what the duct is made of or what size it is? If it's a sheet metal ...
inverter10/20/2009
  Q: I have a small print shop of 12,00m2; there is no heating in it. I bought an inverter air condition ...
  A: Mufid, The "Inverter"/Air conditioner will heat the air somewhat but it's not going to most likely ...
oil in humidifier upon seasonal start up10/19/2009
  Q: Jim, I have drum/plate style humidifier on a natural gas, forced air furnace with A/C. The ...
  A: Larry, I have no Idea what the oily substance could be from? I don't know exactly how or where on ...
Bryant gas Furnace troubleshooting10/19/2009
  Q: I just turned on our gas heat system for the first time this year. It made an unusually loud ...
  A: Barry, The "rollout switch fault" means that your unit is overheating so it shuts off the burner. ...
Rheem Criterion / Blower making noise10/18/2009
  Q: My Rheem Criterion Furnace/AC unit does not turn on. The other day the fan/blower (in the furnace) ...
  A: Ryan, You can spin the squirrel cage by hand and see if it's free? You can try getting some oil down ...
Bryant gas Furnace troubleshooting10/18/2009
  Q: I just turned on our gas heat system for the first time this year. It made an unusually loud ...
  A: Barry, I can't see your furnace, I don't know what it is, where it is, what it dose do if anything? ...
Odor coming through return ducts10/18/2009
  Q: Jim, I have had this mysterious odor coming through my home for about 2 months now and NO ONE can ...
  A: Deserie, If your house is on a slab and the return air ducts run under the floor it's possible that ...
A/C10/17/2009
  Q: Jim..thank you. The A/C Handler, electric heater that is in the closet is right next to my bedroom ...
  A: Susan, What I said was "A new line set would cost the contractor about $200". The contractor would ...
re: Floor Furnace - millivolt - White-Rodgers10/17/2009
  Q: I have a floor furnace with a White-Rodgers universal replacement gas control (36C03U). I replaced ...
  A: Wes, Make sure all the wire splices and connections are scraped clean and tight. You can wire ...
duct cleaning10/17/2009
  Q: .the house i am in is twenty something years old. i have been here for about 12 years, and in that ...
  A: James, Listen to your "guy at work". I think furnace cleaning is a rip off unless you have some ...
Upgrade from 92-95% and adding variable valve/speed-Worth it?10/16/2009
  Q: I currently have TWO 80% 20 year old Tempstar 150K BTU furnaces, one for each floor in my 4600 sq ft ...
  A: Kris, Right now with the two 150K 80% furnaces your heating your home with 240,000 BTU's. With two ...
My unit10/16/2009
  Q: Our A/c unit stopped within 1.5 years so the company who installed it said the coil was bad so we ...
  A: Brian, You probably can't do anything except maybe take the company to small claims court, even if ...
New HVAC10/16/2009
  Q: A/C Techs say compressor went bad. Need new unit. I have Trane A/C 24 years old. NO A/C for over a ...
  A: Susan, I'm not sure what all you have or what all your looking to replace? You didn't say what the ...
Heater not working10/15/2009
  Q: It finally got cold enough to turn the heater on again and what do you know, it won't come on. ...
  A: Daniel the pressure switch is part of the venting system, when the thermostat first calls for heat ...
LEAKING WATER10/15/2009
  Q: One of the pipes from my air conditioner is leaking. The pipe that seems to be leaking is the one ...
  A: Carlos, It's a considerable few feet from the outside unit to the unit in the attic. You're not ...
AC Compressor10/15/2009
  Q: I just moved into a new rental house and I have noticed that the AC inside blower and the outside ...
  A: Sean, Your right in that the inside circulating blower, out side condenser fan, and compressor ...
home-furnace ducting10/14/2009
  Q: the metal grill on an intake air duct howls when the furnace fan operates. It is quiet when I remove ...
  A: Ed, At last count there were about 873 different types of "metal grill's on intake air duct's" give ...
Dryer Vent10/14/2009
  Q: I need to replace the outside cover of my dryer vent as the flap stay open. However, when i remove ...
  A: Avi, I have no way of telling how your dryer vent was installed? It's not a universal thing like ...
Dryer Vent10/14/2009
  Q: I need to replace the outside cover of my dryer vent as the flap stay open. However, when i remove ...
  A: Avi, Dryer vent's are comprised of the hood, damper and pipe (about 10-12 inches long) all in one ...
Furnace fan clicks on/off/on/off...10/13/2009
  Q: I just switched my Payne furnace to heat after only running my AC over the summer. It starts up and ...
  A: Scott, The blower relay has three functions, one in heating mode, one in cooling mode, one in fan on ...
diagnosing emminent compressor/fan motor failure10/13/2009
  Q: We are 1st time home owners and have a 96 Ruud split system heat pump. The unit will work for a ...
  A: Kirsten, The outside condensing unit which is pretty much the compressor and the condenser fan both ...
furnace10/12/2009
  Q: I have a Totaline thermostat 274-0100. Everything displays properly, but the heat will not stay on. ...
  A: Taran, It sounds like your furnace is over heating due to not getting enough air flow passing ...
Pellet Stove installation (Home)10/12/2009
  Q: I have a few questions if you can help answer, or direct this to someone who can, Please? I am at ...
  A: Jerry, I don't know where you live in Wisconsin? a city, town, unincorporated county? Anyway most ...
furnace10/11/2009
  Q: I have a Totaline thermostat 274-0100. Everything displays properly, but the heat will not stay on. ...
  A: Taran, The problem is not the thermostat, I need a description of the furnace and what it dose from ...
my gas furnace wont start??10/10/2009
  Q: I have a 2 year old gas furnace in the basement of our home, this would be the third winter used. It ...
  A: Krissi, You need to set the thermostat to heat, turn the thermostat up all the way 90. Go to the ...
Perfection-Schwank Wall Heater Intermittent Lighting10/10/2009
  Q: we have a standard Perfection-Schwank wall furnace,the millivolt type, which has worked for 15 years ...
  A: Cindy, The Wires, screws, connection points involving copper and millivolts will build up a ...
Rudd Central AC10/10/2009
  Q: Air handler works fine - voltage to exterior condenser confirmed but unit - the compressor and the ...
  A: Rich, There is just one contactor that is activated by 24 volt low voltage wiring that comes from ...
Rudd Central AC10/10/2009
  Q: Air handler works fine - voltage to exterior condenser confirmed but unit - the compressor and the ...
  A: Rich, What confirms voltage to exterior condenser? The voltage that goes to the exterior condenser ...
Testing of Rollout /Vent Safety Switch10/9/2009
  Q: Could you provide info on how to test the rollout and vent safety switch to see if they are any ...
  A: John, What is it on? How is it used? A Rollout is activated by heat, a rollout switch is normally ...
Rheem Furnace10/9/2009
  Q: I have a two year old Rheem furnace - I noticed last year that approximately 1 in 10 cycles that the ...
  A: Robin, You need to be at the furnace observing the burner compartment to see exactly what it's doing ...
Direct vent LP gas furnace10/8/2009
  Q: My oil tank split and my oil forced hot air furnace is over 40 years old, so I decided to switch to ...
  A: Pat, Ruud and Rheem are the same furnace the only difference is the name and maybe the paint color? ...
furnace blowing cold air10/8/2009
  Q: i turned my furance the other day to get chill off the house..it worked fine.. i did it again ...
  A: Betty, There is a down flow and there is a horizontal but not both at the same time. I think there ...
Rheem Furnace10/8/2009
  Q: I have a two year old Rheem furnace - I noticed last year that approximately 1 in 10 cycles that the ...
  A: Robin, The main furnace blower has a timed switch that starts the blower running a short time after ...
Carrier Furnance Model 58PAV090-1410/8/2009
  Q: Furnace will not ignite. Blower comes on, Draft inducer starts, igniter glows orange, but no flame. ...
  A: Chris, If the igniter glowes but the gas dosen't light the ignighter may not be positioned close ...
AC AND FURNACE COMPATIBILITY10/7/2009
  Q: I JUST BOUGHT A NEW THREE AND A HALF TON CENTRAL AIR UNIT LAST YEAR. NOW I NEED A NEW FURNACE. WILL ...
  A: Terry, I'm not saying "they are not compatible" I'm saying what need's to be. As far as air ...
Lennox Furnace watchguard mode10/7/2009
  Q: Since starting up my furnace last week, it has gone into "watchguard" mode (indicated by the LED ...
  A: Andi, When the LED flashes it flashes a code, there should be a legend stuck onto the furnace nearby ...
purpose of venting system10/7/2009
  Q: I would like to know what is the purpose of a venting system. I've been living on a house that we ...
  A: Elsa, If you have a friend or relative that can take a look at your furnace vent pipe, someone with ...
Replacing a downflow gas furnace10/7/2009
  Q: I am replacing a 80% AFUE downflow 75,00 btu 2 ton Hiel natural gas furnace. the furnace is located ...
  A: Chris, There are attics and there are attics, If the attic will accommodate a furnace and the access ...
Humidifiers10/7/2009
  Q: i have a few questions regarding my furnace and installing a humidifier on it. What kind of ...
  A: Paul, I hate furnace humidifies. In my fifty plus years of dealing with peoples heating systems I ...
Lennox Furnace - G43UF Series10/6/2009
  Q: Jim - attempting to start furnace for first time this season - it seems the process gets to the ...
  A: Josh, When the thermostat call for heat the first thing that happens is the induced draft vent ...
lp furnace10/6/2009
  Q: I'll start from the beginning. I bought my house last August it's in town and I have little lp ...
  A: Ben, I guess my question to you would be if the furnace is set up for LP gas, orifices and pressure ...
HVAC replacement cost10/5/2009
  Q: How much does HVAC cost? Our home is 2800 s.f. We've got two separate units...3 tons each, 3 ...
  A: Rebecca, There is no rule of thumb as far a price, the rule of thumb is how much the materials cost ...
Central Air/Heat System10/5/2009
  Q: I am looking for a 13 seer or greater central air & heat system for new construction home of ...
  A: Ann, In my opinion all residential units are equal in quality if you compare apples to apples. Seer ...
Old furnace10/4/2009
  Q: I have an old Henry Furnace. The identifying plate says that it is a Henry Furnace CO. Medina O. ...
  A: Ivan, How old is your Henry (approx)? I understand it has a standing pilot, what is the gas valve? ...
1969 a/c unit replacement10/3/2009
  Q: Jim, I'm asking about replacement of a 1969 Payne a/c unit for my condo. it is a 1.5 ton unit and ...
  A: Sue, A 1.5 or 2 ton air conditioner requires 3/8" and 3/4" lines. I don't know of a Payne unit ...
woodburner10/3/2009
  Q: Jim: Thanks for your service. My question is about proper vent of a wood burner. My plan is to ...
  A: Rich, There are three types of vents. A single wall metal vent is a "C" vent A double wall metal ...
faulty zone valve10/2/2009
  Q: I have one zone of 3 which is not getting hot water. I switched the thermostat to verify that is not ...
  A: Ian, Your dealing with a "Hot Water Boiler". I suspect that when the zone in question call's for ...
Slant Fin GG-150 pilot light won't stay lit.10/2/2009
  Q: A few months ago, the pilot went out on this boiler, but it was the beginning of summer so we didn't ...
  A: Rod, Take a look inside the burner compartment of your boiler at the pilot light assembly. The ...
american standard freedom 80 flame sensor10/1/2009
  Q: . it works great but while the furnace is running and heating it will all of a sudden start to click ...
  A: Amber, What dose that mean, "My husband took it off and cleaned it but we cannot find the part ...
RHEEM 80 Imperial10/1/2009
  Q: I have just purchased a house and the HVAC unit is a RHEEM 80 Imperial. It has worked well all ...
  A: George, When the thermostat calls for heat first the induced draft vent blower comes on, next the ...
Slant Fin GG-150 pilot light won't stay lit.9/30/2009
  Q: A few months ago, the pilot went out on this boiler, but it was the beginning of summer so we didn't ...
  A: Rod, The boiler needs a new thermocouple. Thermocouple is the element that the pilot flame burns ...
furnace won't fire9/30/2009
  Q: Bryant Model Plus 80 High Efficiency funace with NO pilot light. When i turn on the blower goes but ...
  A: Al, Count the flashes from the red light, it's sending a message, there should be a legend stuck ...
gas heat tries to come on with A/C9/29/2009
  Q: I have a Tempstar unit. I know nothing about Heating and A/C.. But I noticed the other day that my ...
  A: John, Your saying, "With the R %26 W connected the heat runs fine". "With the R %26 Y connected the ...
gas heat tries to come on with A/C9/29/2009
  Q: I have a Tempstar unit. I know nothing about Heating and A/C.. But I noticed the other day that my ...
  A: John, Are you saying that your unit is not a heat pump? This is the way it works. Thermostat, the ...
AC motor9/28/2009
  Q: We installed a new 5-ton A/C unit about six years ago. Over the weekend the capacitor blew and it ...
  A: David, My answer in regards to buying a motor was that you could DIY, having a company install it ...
Trouble with new A/C9/28/2009
  Q: I got a new airconditioner about a month ago. Since then, it doesn't work the way my previous (22 ...
  A: Tim, It sounds like your repair man's been drinking his bath water? I don't know exactly what type ...
AC motor9/28/2009
  Q: We installed a new 5-ton A/C unit about six years ago. Over the weekend the capacitor blew and it ...
  A: David, If you are talking about your condenser fan motor outside, it might not run fresh out of the ...
zone valve on boiler system9/28/2009
  Q: I have an old American Standard gas fired hot water boiler. It's model G25DP, series 6BJ5. I'm in a ...
  A: Jamie, I don't know what all your boiler has in the way of 24 volt controls? You need a transformer ...
Thumping noise from evaporator coil9/28/2009
  Q: I just found this site; thanks for what you do. Last night our ac started making a thumping noise, ...
  A: Matt, There are are hundreds of Carrier units which means hundreds of model numbers, every year or ...
heat pump tries to come on with A/C9/27/2009
  Q: I have a Tempstar unit. I know nothing about Heating and A/C.. But I noticed the other day that my ...
  A: John, What has always puzzled me is why anybody would have a heat pump and gas heat? A heat pump is ...
zone valve on boiler system9/26/2009
  Q: I have an old American Standard gas fired hot water boiler. It's model G25DP, series 6BJ5. I'm in a ...
  A: Jamie, Get two 3/4" Honeywell Zone Valve and Thermostat Builder Packs. Install the valves at the ...
"Clicking" in the water supply line on a Trane XR809/26/2009
  Q: We recently moved into a new house and the XR80 unit is in the attic. Periodically we can hear a ...
  A: Brian, An "XR80" is a gas fired forced air furnace for the purpose of heating, if a person want's ...
furnace venting9/25/2009
  Q: We are going to be replacing a natural gas furnace that is nearly 30 yrs old and have been getting ...
  A: Blaine, Your not telling what size the existing furnace, the proposed furnace and the water heater ...
A/C System Replacement9/24/2009
  Q: My Rheem 3 ton A/C was installed in 1990 when I had my home built. The unit appears to be running ...
  A: George, Your ac unit shouldn't be needing to be re-charged with refrigerant every year. Seer rating ...
Air condition vent in hallway above baseboard9/24/2009
  Q: I bought a new 16x25 metal ac vent to replace old one in wall. However to fit, had to turn it ...
  A: Karen, I'm not sure what you have going there in the hallway? People use the word "vent" for ...
Compressor; outside unit; fan comes one;compressor does not9/23/2009
  Q: Goodman Manufacturing outdoor compressor: Model CKL42-1A; 6 years old. In June of 2008 the ...
  A: Andy, If your getting power to the compressor it would run unless it were faulty. When the contactor ...
short cycle problem9/23/2009
  Q: I have two questions I hope you can help me with. 1.How would you remedy a furnace burner short ...
  A: Ron, When a furnace burner is supposed to light automatically after receiving a command from some ...
2-stage cooling variable fan operation9/22/2009
  Q: After complaints about HVAC overall noise contractor suggested to install 2-stage system. He said it ...
  A: Vlad, I don't know your Trane XV95, I don't know how it's installed, there is mechanical noise and ...
Lennox AC Model 10ACB30-9P9/21/2009
  Q: My AC just stopped working-with the thermostat set to run, the outdoor condenser unit clicks and ...
  A: Chris, The outside unit is on a separate circuit from the inside unit. The outside unit condenser ...
noisy fan9/21/2009
  Q: Hey Jim, you answered a question I had a week or so ago about a noise in my central air unit fan. ...
  A: Gene, Motors have a thermal overload protection device built in. If your motor is running under ...
Lennox airhandler turn-on noise9/16/2009
  Q: I have a 4 year old Lennox a/c system. It has been thoroughly checked by two repair companies ...
  A: Andrea, I don't know what is causing the noise? When your systems thermostat calls for cooling the ...
heat pump odor9/16/2009
  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: Sheila, Check or have the condensate drain line checked that runs from the condensate drip pan of ...
Left Over Duct or Necessary Vent?9/16/2009
  Q: I have a house that was built in 1969. The HVAC unit is natural gas and is installed in a closet ...
  A: Josh, If the closet door has a lot of air seepage around it, side's, top and bottom the furnace has ...
HVAC -FAN9/15/2009
  Q: HVAC Question. The thermostat is turned to off and the fan is set to auto. The fan will not shut ...
  A: Duane, Your unit, which ever type you own has a fan control. The fan control determines how and when ...
Left Over Duct or Necessary Vent?9/15/2009
  Q: I have a house that was built in 1969. The HVAC unit is natural gas and is installed in a closet ...
  A: Josh, How dose the air get from the 7" duct into the living area if the door is shut? The 7" duct is ...
Left Over Duct or Necessary Vent?9/15/2009
  Q: I have a house that was built in 1969. The HVAC unit is natural gas and is installed in a closet ...
  A: Josh, If there is a solid door on the closet, solid meaning no grills or louvers you need the 7" ...
Hanging heat pump air handler in attic?9/15/2009
  Q: I recently had a water damage problem from the air handler unit of my heat pump in my attic. The ...
  A: Mike, Every Heating and Air Conditioning Contractor is going to try to save a couple of dollars by ...
Heat supplies and cold air returns in basement9/14/2009
  Q: I am in the process of finishing my basement and had a general question about the HVAC ...
  A: Ray, I have no idea where or how you added anything? I have no idea what the bed rooms are? size ...
Closing a floor vent completely9/14/2009
  Q: Our house is on a slab and all the floor vents are in front of the windows in every room. The only ...
  A: Dana, You can cover the heat supply register ("vent")with just about anything. You didn't say what ...
Condensation drip9/13/2009
  Q: The condensation drip pan in my attic was filling up and shutting down the unit due to the float in ...
  A: Jon, OK you solved the problem with the condensate drain in the attic, no problem, no need to ...
moving a combo heat & air unit9/13/2009
  Q: I have a Gas Heat/Electric Cooling packaged unit,(1997) that sits beside my front door. It is quite ...
  A: Mary, If the back porch is open so that the condenser fan can blow/exhaust freely un obstructing the ...
running ac and light9/12/2009
  Q: i have a 12 year old bryant ac unit #383kav060111 the red light flashes continually the chart says ...
  A: Rich, "Line polarity" If your talking electricity is the hot line and the natural line. The electric ...
Upgrade9/12/2009
  Q: I currently have a 10 seer 3.5 ton ac unit. I live in a 1600 sq ft house in a warm climate. The only ...
  A: Kevin, If your sticking with the 3.5 ton's of cooling you can use the same line set. Sounds like the ...
ventilation9/11/2009
  Q: We are buying a house in a short sale (house less than one year old, but builder is bankrupt). ...
  A: Shauna, There is an international building code for the United States, The code is adopted by the ...
Foul smell when furnace or air is running9/10/2009
  Q: We just bought a manufactured home that has a foul odor (kind of musty and garbagey) coming from the ...
  A: Jane, You need to find where the condensate water from the cooling coil drip pan goes? It should ...
condensation at registers9/10/2009
  Q: HVAC contractor installed three separate split units in new construction. Condensation is forming ...
  A: Len, Any time you have cold air flowing through the metal ducts if any part of the outside is ...
AC change to Heat Pump9/9/2009
  Q: We had a new 4000sf house built (9 mo old)in the NW (Seattle ares) so cooling is really not an ...
  A: John, You need to check with your utility company? Where I live It would cost twice as much to heat ...
AC drip line blowing air9/9/2009
  Q: My evaporator coil was recently replaced (one of two separate systems in the attic). Now when the AC ...
  A: Sean, Dose your condensate drain have a "P" trap? Yes your condensate drain needs a "p" trap all ...
furnace choices9/9/2009
  Q: Do you have any guidance on choosing between Carrier, Lennox, and (much cheaper) Goodman for a ...
  A: Ted, I think residential gas furnace are equal in quality, it's the distributors and installers that ...
a/c unit noise9/8/2009
  Q: I have a Goodman central air unit that's making kind of a squeaking or high pitch, rattling sound ...
  A: Gene, The motor is supposedly permanently lubricated from the factory, there are no oiler places, ...
Possible A/C odor9/7/2009
  Q: For the last two summers, there is a foul smell that goes through my entire house only when the A/C ...
  A: Heather, Furnaces and air conditioners are not installed in homes in the same manner throughout the ...
Home AC Drain9/7/2009
  Q: Hey Jim, I cannot stop the excess condensate from coming out of the overflow pipe and landing into ...
  A: Mark, What you wrote: "When I take the main drain off at the unit, the overflow stops completely" My ...
Possible A/C odor9/7/2009
  Q: For the last two summers, there is a foul smell that goes through my entire house only when the A/C ...
  A: Heather, I can't think of anything other then the cooling coil, drip pan, and drain pipe assembly ...
Sudden Burnt smell in house9/7/2009
  Q: Last night, we had a sudden burnt smell in our house appear and its not really going away. It ...
  A: Darcy, I don't know what it is? I think if it were your air conditioning system you would smell it ...
Possible A/C odor9/6/2009
  Q: For the last two summers, there is a foul smell that goes through my entire house only when the A/C ...
  A: Heather, Check the condensate drip pan, Condensate drip pan drain line. I don't know what the drain ...
Lennox vs Bryant9/6/2009
  Q: Have been getting quotes on new HVAC systems and have our contractors narrowed down between a Lennox ...
  A: Scott, Lennox and Bryant are equal in quality if you compare apples to apples. Lennox is a "click" ...
post script on previous question9/5/2009
  Q: I don't know if I was able to post the last part of the question. It was that the house was built ...
  A: Esther, You probably don't need a lot of heat in Brownsville? You can get a couple of window units ...
A/c fan inside will not come on9/5/2009
  Q: I have an old whirlpool gas heat/ac unit in closet. bout 15 yrs. New digital thermostat replaced ...
  A: Mike, First let me say that installers may carry a spool of thermostat wire in there truck like a 5 ...
post script on previous question9/5/2009
  Q: I don't know if I was able to post the last part of the question. It was that the house was built ...
  A: Esther, I don't know anything about your house other then it has 572 sq.ft. that you want to cool, ...
Water in the drain pipes9/4/2009
  Q: I change the filter every month religiously to my home A/C unit that's inside the house, so I ...
  A: Richard, There is a condensate drip pan underneath the cooling coil. The drip pan is about 1-1/2" ...
Thermostat wiring9/3/2009
  Q: Just installed a new thermostat which can be powered by the 24 v common. My builder was nice enough ...
  A: Ronald, I don't have a manual on your "Hunter Model 44860" I don't know what the "C" 24 volt common ...
Fan (Blower?) not working9/3/2009
  Q: We have a very old (decades) Fraser-Johnston furnace/air conditioner in our hall closet. Last night ...
  A: Erick, If your blower motor is faulty, won't start but the out side condenser unit is running the ...
Flame out9/3/2009
  Q: I have a American Standard XE 90" Model UC080C942 six year old propane gas furnace. My problem is ...
  A: Scott, There is that little channel or tube that runs across the front top of the burners close in ...
Ductwork9/3/2009
  Q: Can you help me with a few questions? I'm going to install a 2 ton Goodman seer 16 AC condenser and ...
  A: Terry, Is this a new house under construction? I don't know the lay out of your utility room, but if ...
Thermostat wiring9/2/2009
  Q: Just installed a new thermostat which can be powered by the 24 v common. My builder was nice enough ...
  A: Ronald, A thermostat is just a switch, there are all types of thermostats used for switching all ...
Replace or repair?9/2/2009
  Q: We live in Las Vegas in a 22 years old house. Our house is a 2 story home, about 3,031 sq. feet. The ...
  A: Oliver, I think you probably have a heat pump? If you don't have gas run to the house or a monthly ...
Chrysler air conditioner9/2/2009
  Q: I have an old Chrysler air conditioner that was installed in a casement window. It has no outside ...
  A: Fred, I don't do window units but a self contained window unit requires outside overhang. There are ...
Spiral Duct CFM Question9/2/2009
  Q: Does 8" spiral duct have a higher cfm capacity than regular 8" round pipe?
  A: Arnold, Eight inch round is 8" round. An 8" metal duct has a crimp at a joint which reduces the ...
Ductwork9/2/2009
  Q: Can you help me with a few questions? I'm going to install a 2 ton Goodman seer 16 AC condenser and ...
  A: Terry, I don't know what your plan is for the two return air ducts? You need at least 200 square ...
Replace or repair?9/1/2009
  Q: We live in Las Vegas in a 22 years old house. Our house is a 2 story home, about 3,031 sq. feet. The ...
  A: Olivier, 1. I don't know the condition of your furnace or heat pump (you mentioned both) I don't ...
Ductwork9/1/2009
  Q: Can you help me with a few questions? I'm going to install a 2 ton Goodman seer 16 AC condenser and ...
  A: Terry, A 6" rd. duct carries 28 sq. inches, eight 6" ducts = 226 in. Eight-8x8 registers depending ...
Another question about faulty blower9/1/2009
  Q: it's greatly apreciated. Could either of the faulty blower or the other one u listed be caused by ...
  A: Josh, You or someone need to get up on the roof and see what's going on? No, too much freon isn't ...
trane heat and air pump8/31/2009
  Q: I have a late 70's mobile home in reasonable shape all windows are shaded out to prevent heat from ...
  A: Jacquelyn, I can't follow your discription of those two 10" flex return ducts or what type of 18x14 ...
Amana HVAC Failed, Installer Out of Business8/31/2009
  Q: In 2000 I had an Amana 13-SEER split HVAC system installed in a rental house. I received on my ...
  A: Char, The compressor if it had any warranty left would be from the Amana people, you need to contact ...
Train XL 80 A/C blower stops after a while8/30/2009
  Q: I have a pair of Trane XL 80 A/Cs with 50A51-405 controllers in the attic with outside Rheem classic ...
  A: Joe, When the thermostat calls for cooling the thermostat R wire which is the power wire to the ...
Train XL 80 A/C blower stops after a while8/30/2009
  Q: I have a pair of Trane XL 80 A/Cs with 50A51-405 controllers in the attic with outside Rheem classic ...
  A: Joe, I don't have the literature nor the time for researching makes and models, it's so much essayer ...
Boiler asbestos8/30/2009
  Q: I work for an HVAC company in western Massachusetts and recently had to remove an old (at least ...
  A: Sam, A sixty year old boiler I'd say very likely. A 100% sure your boss wouldn't know that it ...
Jim, I'm back ....no luck with igniter8/30/2009
  Q: It's Jim in Michigan. Remember, I said on 8/21 that my Tempstar natural gas furnace was doing ...
  A: Jim, It takes 24 volts to open the gas valve, with no power it won't open just like a light bulb no ...
air conditioning8/29/2009
  Q: We just saw a house for sale, but we would like to know why the air conditioning vent in the living ...
  A: Esther, OK "the unit is in the hallway closet" your not describing the unit as anything but an air ...
Jim, I'm back ....no luck with igniter8/29/2009
  Q: It's Jim in Michigan. Remember, I said on 8/21 that my Tempstar natural gas furnace was doing ...
  A: Jim, I don't know what to tell you? 24 volts goes to the thermostat to begin with, The thermostat is ...
Humidifiers8/29/2009
  Q: It works well. The installer wanted to install a dehumidifier with it, but I hesitated because in ...
  A: Kevin, I have never in my fifty plus years of HVAC related equipment found a furnace installed ...
adding another ac vent8/29/2009
  Q: I have an ac/heating vent that is in the bathroom toilet stall room, above the doorway, and would ...
  A: Bonnie, I'm not sure what you have for a wall space thickness or what type of register box is in the ...
Furnace Fan keeps running8/28/2009
  Q: Model GNI100A016BIN Comfortmaker RPJ II gas furnace cool air is blown continuous until I turn off ...
  A: Mike, If you disconnected the wires from the thermostat (all the wires that come out of the wall) ...
Heating pipes in attic8/28/2009
  Q: My house was built in the 1940s when energy efficiency was of no concern. As a result, the heating ...
  A: Win, I don't know what the rules and regulations are heating systems in Canada? I don't know what ...
Jim, I'm back ....no luck with igniter8/28/2009
  Q: It's Jim in Michigan. Remember, I said on 8/21 that my Tempstar natural gas furnace was doing ...
  A: Jim, I think your furnace is working up to the point where it won't open the gas valve either ...
Heat Pump Tonnage8/28/2009
  Q: We are looking for some information about the two heat pumps which are installed at our house. One ...
  A: Jeff, Both units should have the btu's on the Label/Rating plate. The Goodman model number CPLE(30) ...
Moisture dripping in vent tube from water heater8/27/2009
  Q: I just moved in a house which was built in 2005. Whenever we use hot water for a longer time (say ...
  A: Ben, I don't know how your vent is ran other then from the garage up through the roof. The ideal ...
Central air not working properly8/27/2009
  Q: My friend has central air in his house. I don't know any details about the unit, but he keeps it set ...
  A: Kathy, You answered all my questions just by saying "the unit is in the attic". There is an outside ...
Air Conditioner lines are condensing onto my ceiling8/27/2009
  Q: I have an 18 year old, split, HVAC system. I have a single unit servicing a 2 story house. I live ...
  A: Todd, I'm so sorry, I got your question mixed up with a similar question, erase my last answer and ...
Moisture dripping in vent tube from water heater8/27/2009
  Q: I just moved in a house which was built in 2005. Whenever we use hot water for a longer time (say ...
  A: Ben, Have you seen any moisture or are you just hearing what sounds like dripping? Are you getting ...
Comfortmaker T874 Replavement8/27/2009
  Q: I am trying to replace a Comfortmaker T874 thermostat. It had White (W) Blue(C) Green (G) Red (R) ...
  A: Mike, There are too many different types of thermostats and too many different things they might ...
HVAC8/26/2009
  Q: I'm in a maintenance department and the facility were i work has an ongoing problem that i simply ...
  A: Bill, I think your talking about 24 inch T-bar ceiling diffusers? You need to lift out a couple of ...
AC Question8/26/2009
  Q: We bought our home just over a year ago brand new. It is a two story, about 2400 sq feet. We live in ...
  A: Tammy, Are you saying that you have two separate air conditioning systems, one for upstairs and ...
New A/C not as cool8/25/2009
  Q: I just replaced a 20 year old Trane A/C with a new XR-15 Trane. The installers also replaced the ...
  A: Roger, A stem thermometer has a round dial face with a stem probe about 1/8" X 4-5 inches with a ...
New A/C not as cool8/25/2009
  Q: I just replaced a 20 year old Trane A/C with a new XR-15 Trane. The installers also replaced the ...
  A: Roger, There is nothing that you can adjust, the system may be low on refrigerant? You don't have ...
Residential Central Air8/25/2009
  Q: Jim, and thank you in advance for considering my question. We have a entry level, residential ...
  A: Aaron, It's either the fan motor or the compressor one of which is under stress? You can try ...
New A/C not as cool8/25/2009
  Q: I just replaced a 20 year old Trane A/C with a new XR-15 Trane. The installers also replaced the ...
  A: Roger, If your thermostat is set at 81 and the air conditioner shuts off then it must be 81 degrees ...
Blown Compressor Motor8/24/2009
  Q: I have two different A/C repair people telling me different things. My compressor motor is blown One ...
  A: Mary, I'm not sure what Type of unit you have or exactly what is "blown"? Do you have a self ...
utilizing furnace to recycle air in house8/24/2009
  Q: I have a newer Conquest 80 Propane furnace. I recently purchased a pellet stove and placed it in our ...
  A: Chris, I don't have a manual on a "Conquest 80 Propane furnace". If you have a heating only furnace ...
Humidifier8/24/2009
  Q: I live in Sedona, Arizona (high desert, very dry) and moved from the East Coast. I'm still not used ...
  A: Mark, If you have a refrigerated air conditioning system in your house you can't run the air ...
replacement HVAC system8/23/2009
  Q: Jim, Thanks for your time. We are replacing our 15 year old split A/C and furnace as the E coil is ...
  A: Bob, In regards to the two existing return air grills at the floor level. Are the grills in the ...
AC - Heat Pump Vent8/23/2009
  Q: We have a Trane Heat Pump with our central air system. The inside unit is vented with a 3/4 inch PVC ...
  A: Ken, Somebody just drilled a hole and stuck the condensate drain in, there's nothing down there for ...
air conditioning8/22/2009
  Q: Ok...during the day today me and the wife noticed it getting hot. I thought the air was turned up so ...
  A: Ronald, When the thermostat calls for cooling it clicks on a contactor switch in the outside unit, ...
replacement HVAC system8/22/2009
  Q: Jim, Thanks for your time. We are replacing our 15 year old split A/C and furnace as the E coil is ...
  A: Bob, You have a big advantage over me because you have access to everything concerning heating and ...
air conditioning8/22/2009
  Q: Ok...during the day today me and the wife noticed it getting hot. I thought the air was turned up so ...
  A: Ronald, I don't know what type of equipment you have? You lost me with the description "i punched ...
replacement HVAC system8/22/2009
  Q: Jim, Thanks for your time. We are replacing our 15 year old split A/C and furnace as the E coil is ...
  A: Bob, There are "manual J" calculations and there are "manual J" calculations. It would have been ...
No burner ignition ...8/21/2009
  Q: Jim, I installed a Tempstar (Intl Comfort Products) natural gas furnace myself in our house just ...
  A: Jim, When the thermostat calls for heat the "induction motor" starts and proves itself by way of the ...
air conditioning problem8/21/2009
  Q: would a 5 ton unit freeze up if it was one pound low on freon? i had a service tech come to my house ...
  A: Mark, I don't think a system being short one pound would cause a freeze up by itself. I have a hard ...
air conditioning problem8/21/2009
  Q: would a 5 ton unit freeze up if it was one pound low on freon? i had a service tech come to my house ...
  A: Mark, What type of unit? inside, outside, attic, basement? If you weren't home how could he inspect ...
macthing compressor to handler8/19/2009
  Q: i have a air handler FEM2X3600AI in the attic , my compressor is over 10 years old , which is a ...
  A: Albert, If the air handler is compatable it dosen't matter what the make is, being compatable with ...
control transformer primary winding burning up8/19/2009
  Q: I have a basement furnace (trane) 1988. Last week the control transformer primary winding burned up, ...
  A: Dan, The 110 electric service to your furnace feeds a branch to the blower/blower controls and a ...
Central AC unit Trane XR118/18/2009
  Q: Our unit does not respond when the thermostat calls for cooling, the home blower kicks in but ...
  A: Den, The inside unit is on a separate circuit breaker in the house breaker box most likely a 110-120 ...
GE HVAC smell - rating8/17/2009
  Q: I have a GE HVAC unit in my rental apartment. Every time I try to run it it smells awfully - it ...
  A: Zhanna, I didn't want your address! what I should have said is instead of "I don't know where you ...
Duct sizing for a 2.5 ton a/c system8/17/2009
  Q: I have a customer of mine who has a 2.5 ton hvac system. We just replaced his ductwork. He had (5) ...
  A: Adam, You never did give a size and location or description of the supply's other then 6" box ...
Duct sizing for a 2.5 ton a/c system8/16/2009
  Q: I have a customer of mine who has a 2.5 ton hvac system. We just replaced his ductwork. He had (5) ...
  A: Adam, I think I could give you some helpful tip's and a couple of helpful inexpensive ways you ...
venting dryer and HVAC, concerned8/16/2009
  Q: We live in a condo that requires that we have ventless dryers. Our upstairs neighbor is trying to ...
  A: Emily, Yes, my advice is, tell them that it's against the law and if they do anything as stupid as ...
Central Air unit won't turn on8/15/2009
  Q: I have a carrier central air unit. Last night there was a power outage due to a storm. When the ...
  A: Harold, The outside unit is on a double 220/240 circuit breaker. The inside unit is on a 110/120 ...
Duct sizing for a 2.5 ton a/c system8/15/2009
  Q: I have a customer of mine who has a 2.5 ton hvac system. We just replaced his ductwork. He had (5) ...
  A: Adam, So what is the complaint exactly? "He is complaining that now his system is not doing what it ...
Drain line problem8/15/2009
  Q: I tried to do a mantenace on my air conidioner every 6 months, and I got alot of dirt out of my ...
  A: Sue, You didn't furnish any information on what your air conditioner consists of? You didn't mention ...
ac8/14/2009
  Q: I have a 1900sq ft ranch in NJ with a confortmaster 3 ton compressor which is about 10 years old and ...
  A: Albert, Very interesting! How do you know your Condensing unit is "ONLY PUTTING OUT 32800 BTU"? I ...
CENTRAL AIR ISSUES8/13/2009
  Q: We are currently experiencing no air flow in our home. The outside fan is moving and there is no ice ...
  A: Larry, Did you read my last answer? I don't have any idea what your AC unit is or where it is ...
CENTRAL AIR ISSUES8/13/2009
  Q: We are currently experiencing no air flow in our home. The outside fan is moving and there is no ice ...
  A: Larry, Your question is confusing? You start out saying "We are currently experiencing no air flow ...
Refig.8/13/2009
  Q: My frezer works fine but the ref. does not. What could be wrong? Any simple fix that I can do? ...
  A: Marie, Food refrigerators are not my line but from my own experience you need to pull the ...
Outside coils deterioation8/13/2009
  Q: The coils on my outside unit Tempstar 2200 12 + Seer Heat Pump installed 12/12/02 have deterioated ...
  A: Mary Jo, I think sometime in those seven years somebody sprayed some type of chemical on your ...
A/C Dead Fan outside not turning8/12/2009
  Q: The fan outside is not turning on the unit. You can hear that the power is on. What could be the ...
  A: Tina, The name is "Fraser-Johnson" Formerly a dvision of Borg-Warner, York International is now spun ...
HVAC problem fixed8/12/2009
  Q: Hey Jim, The HVAC guys came out and all I needed was some freon. The small lineset was pulsating ...
  A: Bryan, I'm glad you found the problem. I went back through the correspondence and couldn't find ...
A/C Dead Fan outside not turning8/12/2009
  Q: The fan outside is not turning on the unit. You can hear that the power is on. What could be the ...
  A: Tina, I doubt if the fan motor is covered by warranty, you need to ask the installing company. You ...
Williams Propane heater lighting problem8/11/2009
  Q: I have a William direct vent wall mount propane heater. These are the specs: Model: 3003621 Serial ...
  A: Cliff, Yes PG to GV bypassing the thermostat plus all the thermostat wires and a limit control. The ...
Hvac problem8/11/2009
  Q: It wouldn't let me ask another question. Alright back to water dripping from the coil onto the ...
  A: Bryan, From your sketch is shows that the blower pulls the air up through the coil as opposed to ...
AC not cooling8/11/2009
  Q: I have a goodman cental AC, the unit works outside and the pipe going to the compresser is very ...
  A: Larry, The inside unit furnishes the 24 volt electric power that turn the outside unit on which ...
Williams Propane heater lighting problem8/11/2009
  Q: I have a William direct vent wall mount propane heater. These are the specs: Model: 3003621 Serial ...
  A: Cliff, To check if the problem is in wiring/thermostat you can wire directly from the pilot ...
air conditioner fuse8/11/2009
  Q: What amp fuse should I get for an air conditioner (outside unit) model MGH075ABWN05. The ones I ...
  A: Helen, The outside unit should have a rating plate right where the electric service goes into the ...
6 year old Goodman Furnace w/ac8/10/2009
  Q: With Energystar Thermostat OFF and/or disconnected from wall, the fan motor will turn ON and OFF ...
  A: Rob, I can't seem to get an answer to a direct question?Dose the blower run/cycle on and off when ...
6 year old Goodman Furnace w/ac8/10/2009
  Q: With Energystar Thermostat OFF and/or disconnected from wall, the fan motor will turn ON and OFF ...
  A: Rob, Is the furnace blower turning on for no reason? the thermostat is not calling for heating or ...
HVAC problem8/10/2009
  Q: I have a carrier airhandler/heat pump, I cleaned the coil inside about 2 months ago because I was ...
  A: Bryan, The primary drip pan in the unit has got to be clogged/ stopped up enough to be causing the ...
6 year old Goodman Furnace w/ac8/10/2009
  Q: With Energystar Thermostat OFF and/or disconnected from wall, the fan motor will turn ON and OFF ...
  A: Rob, I don't understand how with the thermostat disconnected from the wall the unit could be in any ...
HVAC problem8/10/2009
  Q: I have a carrier airhandler/heat pump, I cleaned the coil inside about 2 months ago because I was ...
  A: Bryan Do you have two units in the attic? "the hvac is down flow in the attic". "the air handler is ...
Leaking a/c8/10/2009
  Q: I have a Trane 8kw a/c. theres an inside and outside unit. Its in a closet and its been leaking ...
  A: Lia, Your just showing me where the water is coming out, I think up above inside the duct there is a ...
Black Around Air Vent8/8/2009
  Q: There is black around my air vent in the living room. The living room vent is the only one that has ...
  A: Raney, What I'm trying to say is the "black" may not be coming from the furnace air but from the air ...
new condenser hanging over slab8/8/2009
  Q: The new condenser is longer than the slab it is on. The contractor says since the heavy part of ...
  A: Greg, I don't know what your condensing unit is? There should be a couple of channel iron supports ...
WATER8/7/2009
  Q: Jim, I live in northwest Louisiana, high humidity. The problem is after running for long perods of ...
  A: John, I'm assuming that you have some type of heating, cooling, or heating and cooling unit in the ...
help with chewed wires8/7/2009
  Q: Mr. Barnhart- I submitted this question to Mr. Trimborn also but then came along a question you ...
  A: Candi, When the thermostat calls for cooling the thermostat turns on the blower in the furnace in ...
Black Around Air Vent8/7/2009
  Q: There is black around my air vent in the living room. The living room vent is the only one that has ...
  A: Raney, Black around supply air diffusers isn't always something coming out of your air unit. There ...
Carrier 3 ton package unit8/6/2009
  Q: Jim; thank you in advance for any advice on this matter. We have a unit that I don't know much ...
  A: gabriele, Motors on HVAC units don't have oilers/oil holes any more, there supposedly lubricated for ...
Filters8/6/2009
  Q: Can split system heat pumps (that is a system that has an exterior unit and an internal inverter) ...
  A: Roger, Operating the inside unit (air handler) without a filter (in the heating mode) will suck ...
Condensate Drainage8/6/2009
  Q: My condensate pump was overflowing. Realized it was only pumping when water level was low, not ...
  A: DJ, I have no Idea what your talking about? Your condensate drain is not a carbon copy of the rest ...
mold in furnace8/6/2009
  Q: We had a routine air duct cleaning today on our furnace. Our house is 14 years old and have probably ...
  A: Natasha, I can't see your furnace/duct work but my initial feeling is that you already have been ...
Apartment A/C8/5/2009
  Q: i have a question about my apartment and how long it should take to cool the unit when operating. ...
  A: John, Depending on the outside tempature? Depending on what you want the inside tempature to be? ...
Installation price?8/5/2009
  Q: wanted to know if $5,000.00 is a good price for a 3ton - 100,000 btu rheem packaged rooftop unit ...
  A: John, How about some information? Is this a new installation or a replacement? Is this an Air ...
1200 TRANE A/C8/4/2009
  Q: I had a service tech come out to the house since the downstairs unit stopped blowing cool air. The ...
  A: TY, I don't keep reference books for looking up model numbers, I don't know what a "1200 TRANE A/C" ...
Heat Pump8/4/2009
  Q: We have a heat pump. It's an outside unit and the fan isn't turning. I read the answer to one of ...
  A: Pam, When the thermostat calls for cooling the outside fan and the compressor should both start and ...
GE PROFLE TPG21PRDA SS8/4/2009
  Q: Firstly, Thank you so much for taking time from your own busy lives to answer our questions and ...
  A: Sarah and Karl, I realize things are different in the UK! I don't do "fridge's" if your talking ...
calculating blower CFM8/3/2009
  Q: I’m building my own home in S. E. Kansas and haven’t been able to find anyone to install the A/C ...
  A: William, If your not a mechanical engineer? What are you looking for motor size for the squirrel ...
Dripping water Coleman Evcon Furnace8/3/2009
  Q: I have a 1996 Coleman Evcon in my mobile home. In the furnace there was water dripping on the front ...
  A: Karen, I don't know what your set-up is how your cooling coil is mounted etc. It sounds like an "A" ...
Dripping water Coleman Evcon Furnace8/3/2009
  Q: I have a 1996 Coleman Evcon in my mobile home. In the furnace there was water dripping on the front ...
  A: Karen, I don't know what the situation is with your