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About Jim Barnhart
(Top Expert on this page)

Expertise
Fifty + years in Heating, Ventilating, Air Conditioning, Sheet Metal Manufacturing. Semi retired since 1995,

Experience
Answer questions about , residential and commercial. Answer questions about sheet metal fabrication. Fifty years plus experience. No answers for oil equipment, No answers for kitchen appliances, No answers for laundry appliances.

Education/Credentials
Hands on since 1950

   

You are here:  Experts > Home/Garden > Home Appliances > Heating, Air Conditioning, Fridge, HVAC

Questions Answered By Expert  Jim Barnhart 
In Category  Heating, Air Conditioning, Fridge, HVAC

SubjectDate Asked

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 drip pan and drain line? What you describe ...
coil leak8/3/2009
  Q: This new R410A Goodman unit installed late Feb. 2009 now has coil leak; lost all refrigerant. The ...
  A: Barbara, "R410A Goodman unit", doesn't tell me what type of unit it is, I don't know what the ...
water in furnace vent from burst pipe8/2/2009
  Q: Our water line burst in our bathroom and it flooded the the vent. Now the vents in three rooms are ...
  A: Marsha, I guess I don't know exactly what your duct set up is? Most houses with the duct in a crawl ...
water in furnace vent from burst pipe8/2/2009
  Q: Our water line burst in our bathroom and it flooded the the vent. Now the vents in three rooms are ...
  A: Marsha, OK, the furnace duct is in the crawl space under the house, I assume the duct under the ...
A/C unit suts off when temp outside is over 908/1/2009
  Q: For the past 2 weeks, any days that are over 90 cause our unit to shut off. The fan still blows but ...
  A: Pam, Other then the electric company, when the thermostat calls for cooling the inside blower and ...
A/C unit suts off when temp outside is over 908/1/2009
  Q: For the past 2 weeks, any days that are over 90 cause our unit to shut off. The fan still blows but ...
  A: Pam, Your suspicion about the electric company is a good possibility. Many electric companies have ...
water in furnace vent from burst pipe8/1/2009
  Q: Our water line burst in our bathroom and it flooded the the vent. Now the vents in three rooms are ...
  A: Marsha, I'm not sure what your calling "vents" or Where the ducts are located, in a basement, in a ...
HVAC7/31/2009
  Q: We moved into an older 2 story home with a used AC unit installed a year ago and maybe a late 80's ...
  A: Landon, I don't know any of the particulars about your heating and air conditioning system? Such as ...
heating7/31/2009
  Q: I have an old house built in the late 40's with an in-floor O'Keefe and Merritt heater. It is ...
  A: Ross, When your floor furnace came new it came with a wire rod, maybe 30" long, long enough to stick ...
Air Conditioner7/31/2009
  Q: We moved into a townhouse that has central air but unfortunately has not worked. It is a Keeprite ...
  A: Gloria, Keeprite is just a brand name, it doesn't tell me what type of system you have? If you have ...
heating7/30/2009
  Q: I have an old house built in the late 40's with an in-floor O'Keefe and Merritt heater. It is ...
  A: Ross, I haven't had anything to do with a floor furnace in maybe 40-45 years but as best as I can ...
Buying a New Air-conditioner7/30/2009
  Q: i wish to Buy a new Air-conditioner for my Office area. Some suggest for an AHU, ceiling mounted. ...
  A: Rohit, Sizing for air conditioning if your looking for a precise figure requires many different ...
air flow7/30/2009
  Q: I have been having air problems for a while now & was told it probably due to air flow. I only have ...
  A: James, You didn't specify enough about your system for me to give you an inelegant answer. What is ...
trane fan motor not turning7/29/2009
  Q: I am looking for your suggestions as to what could be wrong with my outside unit. We have an indoor ...
  A: Eddie, The important thing is what happens at the condensing unit the moment the thermostat calls ...
trane fan motor not turning7/29/2009
  Q: I am looking for your suggestions as to what could be wrong with my outside unit. We have an indoor ...
  A: Eddie, It could be a start capacitor for the fan motor or it could be a faulty motor that has dried ...
Old central a/c bangs at times7/29/2009
  Q: My central a/c works well, is old (probably well over 30 years), uses water through copper pipes to ...
  A: Kay, Model numbers don't help me, there are thousands of Amana model numbers and unless you have ...
Leaking Heat Pump in Attic7/29/2009
  Q: We live in DE and have a heat pump in the attic. It has a condensate pump that is installed in the ...
  A: Amy, The unit in your attic is an air handler, the actual heat pump is the unit out side. The air ...
Old central a/c bangs at times7/29/2009
  Q: My central a/c works well, is old (probably well over 30 years), uses water through copper pipes to ...
  A: Kay, I have no idea what the thing is that your calling "My central a/c"? that has water running ...
evaporator coil7/28/2009
  Q: i would like to clean my cooling coil from my central a/c.it`s above the heat exchanger in the ...
  A: Cooro, Assuming you have an "A" coil, I don't know what the configuration of your plenum is like or ...
Window unit cycles in high outside temps before room is cooled7/28/2009
  Q: I have a window unit a/c. It has worked great in the past as long as the filter is clean, etc. ...
  A: Lynne, The motor may be shutting off on thermal overload until it cools and then it starts again. ...
Size of the plenum7/28/2009
  Q: I recently hired a company to conduct a yearly inspection/cleaning on my residential central air ...
  A: Cathy, Like just about anything that carries or moves something even air the unit your moving it ...
What size AC I need ?7/28/2009
  Q: I got an old AC Carrier (591ANX024000AAAA) I believe it is 2 tons unit. The house is about 1500 sq ...
  A: Pak, Imagine your 1500 square foot house is just a big box with four sides a top and a bottom. ...
Miller 3 ton self contained7/27/2009
  Q: We have a miller 3 ton self contained all in one air conditioner. It is about five years old. The ...
  A: Dan, when the thermostat calls for cooling the circulation blower that blows air into the house, The ...
Miller 3 ton self contained7/27/2009
  Q: We have a miller 3 ton self contained all in one air conditioner. It is about five years old. The ...
  A: Dan, Let me try it this way. When the thermostat calls for cooling but the outside "FAN" doesn't ...
boiler furnace7/27/2009
  Q: I am wanting to replace my boiler furnace with either a high or medium efficiency furnace. Because ...
  A: John, You might already have a medium efficiency hot water boiler? check the rating plate for input ...
air conditioning argument7/26/2009
  Q: My father (88) and I (62) have a running disagreement about how to run the air conditioner in our ...
  A: Brigid, We don't have a humidity problem where I live so I really can't give you any expert advice ...
Rudd ac unit7/26/2009
  Q: Honeywell FocusPro 5000 set at 70deg. and inside temp. got up to 84deg. yesterday. Fan outside just ...
  A: William, So what do you do? run it with the slow fan? what about the compressor in the condensing ...
HVAC Follow up7/26/2009
  Q: Jim, I could not post any more follow up questions but in response to your last question, when ...
  A: Jeff, I don't know what heating and air conditioning companies are charging in your area? I have no ...
air conditioning7/25/2009
  Q: My central air conditioning unit is taking a long time to get to set temperature. I just changed the ...
  A: Rick, If it's 79 outside and it taking a long time for the tempature to reach 75 inside, a long time ...
removimg a gas furnace7/25/2009
  Q: I need to remove a furnace and cap off a gas line in order to have a heat pump/air conditioning unit ...
  A: Larry, Do yourself a favor and call your gas and electric utility company and ask them which is the ...
Miller 3 ton self contained7/25/2009
  Q: We have a miller 3 ton self contained all in one air conditioner. It is about five years old. The ...
  A: Dan, The "relay"/capacitor may be bad and not making contact on it's own. When the unit calls for ...
Central AC Size7/24/2009
  Q: Jim, I bought a brand new house in 2006. IT is 2100 sf and the ac unit is 13 SEER at 3.5 tons. ...
  A: Jeff, I don't know what the terms of your contract were when you bought your house. Or what the ...
Central AC Size7/24/2009
  Q: Jim, I bought a brand new house in 2006. IT is 2100 sf and the ac unit is 13 SEER at 3.5 tons. ...
  A: Jeff, What I meant was I don't have the necessary information to fill in the blanks of a heat gain ...
keeprite a/c maintenance7/24/2009
  Q: Have an older green model of Keeprite A/C from about 1994. I've been told to just turn on the hose ...
  A: Majda, Keeprite is a brand name, a/c could apply to many different types of equipment. If your ...
Central AC Size7/24/2009
  Q: Jim, I bought a brand new house in 2006. IT is 2100 sf and the ac unit is 13 SEER at 3.5 tons. ...
  A: Jeff, The rule of thumb that I like is, one ton of cooling for every 400 square feet of floor space ...
A/C UNIT7/24/2009
  Q: I am hoping you can help me. I purchased a Air Conditioning unit it's a gas electric RRNA series ...
  A: Susan, With a 2.5 ton cooling coil in your inside unit (gas furnace) the furnace blower needs to be ...
Whole house fan7/24/2009
  Q: I had a whole house fan that died and needed to be replaced. I bought a Flow Master from Home Depot. ...
  A: Chris, I don't know the fan or exactly what all the installation configuration is? moving air is ...
removimg a gas furnace7/23/2009
  Q: I need to remove a furnace and cap off a gas line in order to have a heat pump/air conditioning unit ...
  A: Larry, My question to you is why would you want to change from gas heat to electric heat? I don't ...
Condensate Drainage Backing Up in Bathroom Sink7/23/2009
  Q: "The HVAC unit is installed in the attic and the contractor ran the units condensation line down to ...
  A: Charles, I think you implied originally that the condensation water was backing up in the sink? if ...
Rheem vs Carrier vs Trane7/23/2009
  Q: I live in Florida and need to replace my air/heating system. My hose is 14yrs old, 2 story, 2100sq. ...
  A: Sara, I don't think any brand is better then the other. If you compare any brand with another brand ...
Condensate Drainage Backing Up in Bathroom Sink7/23/2009
  Q: "The HVAC unit is installed in the attic and the contractor ran the units condensation line down to ...
  A: Charles, Once the condensate water reaches the sink drain it becomes a plumbing problem. I don't ...
HVAC7/23/2009
  Q: I am looking to buy an older home, the house is 1750 sqft two story it has a Lennox 3.5 ton unit ...
  A: Anthony, A Lennox what? AC only unit, gas furnace, heat pump, split system, self contained? If your ...
central ac unit7/22/2009
  Q: I have a new central air unit. The compressor and fan outside was replaced about a month ago and the ...
  A: Tiffany, When your thermostat calls for cooling the inside unit blows and the outside unit runs ...
air handler blower7/22/2009
  Q: Have a airhandler that the blower will come on 80 percent of the time when called on. Changed the ...
  A: James, I don't know what your calling a "sequencer time delay blower relay" ? You might have a ...
HVAC7/21/2009
  Q: Noticed heavy icing on the outside pipes of AC. Unit on outside was running continuously but inside ...
  A: cassandra, Your saying that your inside and outside units are working all right and meeting the ...
Outside A/C Unit7/21/2009
  Q: We just had our outside A/C unit recharged with freon and the AC technician told us it was ...
  A: Veda, I would never tell anyone that it's OK to clean a condensing unit with a garden hose while ...
Contactor not working right7/21/2009
  Q: My question is about the contactor on my old Goodman outdoor AC unit. I have 25V across the ...
  A: Mike, If you can close the contactor with a screwdriver but the 24 volts can't pull it in I would ...
Contactor not working right7/20/2009
  Q: My question is about the contactor on my old Goodman outdoor AC unit. I have 25V across the ...
  A: Mike, The 24 volts comes from a 110/120 circuit breaker, the 220/240 to the condensing unit comes ...
AC unit not working after storm7/20/2009
  Q: Jim, I was not in my house last Saturday but neighbors said that there was a huge storm in the ...
  A: Saul, Again I don't know what your setup is/what is it your calling your "AC unit"? The unit in your ...
AC unit not working after storm7/20/2009
  Q: Jim, I was not in my house last Saturday but neighbors said that there was a huge storm in the ...
  A: Saul, I'm not sure what your setup is or what all isn't working? If you have a split system then ...
venting central air7/20/2009
  Q: In the current venting of our central air conditioner, there are two white PVC pipes that lead from ...
  A: Sydra, I think your talking about a "gas burning forced air Furnace" With a cooling coil mounted in ...
3 ton Split air unit7/15/2009
  Q: My compressor is grounded so a/c is out. I have a friend that has a spare 3&1/2 ton unit (split) ...
  A: Diana, No way to test without it being operable and operating. Plus the $300 your neighbor want's be ...
duct sizing7/15/2009
  Q: ANSWER: Keith, If your "3ton system" equals "1250cfm" it will always equal "1250cfm". What blows out ...
  A: Keith, Common sense tell's me if I have 1250 CFM pushing out of one duct and I add a second duct of ...
AC dripping7/15/2009
  Q: My AC unit has recently began dripping constantly. The drain line is directly over my front porch. ...
  A: Margery, Your question wasn't filled with a wealth of information but I'll try to fill in. I assume ...
Payne central heat & air blower chirping7/15/2009
  Q: I have a Payne central heat & air updraft unit approx. 15 years old. The blower on the bottom ...
  A: Herb, If you look the blower assembly over real good you'll probably find a couple of bolts/screws ...
hvac7/14/2009
  Q: i have a 1900 sqft cape cod home. about 12 yrs ago i put in a 3 ton ac with gas heat. the drip pan ...
  A: Keith, If your cooling the whole 1900 square feet then 3 ton is a bit small, You need to deduct the ...
Heatpump stops cooling7/14/2009
  Q: Equip: Heatpump outdoor unit and attic mounted airhandler Location: Texas, been >100deg for a few ...
  A: Dennis, Most everybody who sizes an air conditioner uses a design tempature differential of twenty ...
Window A/C not working...7/14/2009
  Q: I have a old Samsung window unit,the fan comes on but the compressor doesn't.I have made sure the ...
  A: Irene, Me either! I don't do window units, window units are like TV sets nobody messes with them any ...
Return Air Duct Location7/14/2009
  Q: My house currently has 8 (13.75" x 7.75") return air ducts, 4 each on the first and second floor. My ...
  A: Kim, Your "8 (13.75" x 7.75") return air ducts" are really 12x6 return air grills, each grill has a ...
Temstar heating and air conditioner unit7/13/2009
  Q: Unable to locate the model # but the unit is about 10 years old, some 4 feet in length, 2 1/2 feet ...
  A: Hayden, I have absolutely no knowledge of what your dealing with? Tempstar is a brand name that used ...
Rheem Air Handler7/13/2009
  Q: 2 Year old Rheem Classic Plus air handler sweats to the point of dripping. Installer said it was ...
  A: Lee, It's called condensation, that's what happens when the cold meet's the warm. It's normal for ...
A/C7/13/2009
  Q: I have some heat registers in my basement, but no return air registerb whivh I could cut into the ...
  A: Bill, I don't know what all you have in your basement, If you install return air/airs in the ...
Home AC7/13/2009
  Q: We have lived in this new construction home for about 14 months. We have central air and heat. We ...
  A: Kirsten, I don't know what type of "central air and heat" You have? There are gas furnaces, electric ...
Temstar heating and air conditioner unit7/13/2009
  Q: Unable to locate the model # but the unit is about 10 years old, some 4 feet in length, 2 1/2 feet ...
  A: Hayden, The cooling coil has a drip pan directly under the coil itself, it may be built onto the ...
AC fan stay son after AC is off7/12/2009
  Q: Replaced an old t-stat recently with a new programmable t-stat (ritetemp model 6025). Initially had ...
  A: Kevin, First of all it doesn't make any difference in how something operates because of the color of ...
air conditioner7/12/2009
  Q: I just updated my air conditioner which was servicing the first floor and the basement from a 1.5 to ...
  A: Elizabeth, I'm not sure what the problem is? Is the "pump" a unit that is maybe sitting on the floor ...
condensate dripping7/12/2009
  Q: The coil in my residential heat pump is at an angle, and instead of the water running down the coil ...
  A: Steve, I don't have a service manual on your air handler, I don't know the type either, even if I ...
air conditioner7/11/2009
  Q: I just updated my air conditioner which was servicing the first floor and the basement from a 1.5 to ...
  A: Elizabeth, When you install a refrigerated AC unit (I assume it's in your basement?)It doesn't come ...
home air conditioner7/10/2009
  Q: Goodman unit, 4 years old. Stopped cooling upstairs, however I feel air going into the intake. The ...
  A: Bob, If you have a split system your not specifying inside unit or outside unit? You talk about ...
central air conditioning7/10/2009
  Q: Our 10-year-old air conditioning condenser just blew, and it looks like we have to replace the whole ...
  A: Andrea, Noise from a condensing unit is largely from the way it's installed and the installers know ...
central air conditioning7/10/2009
  Q: Our 10-year-old air conditioning condenser just blew, and it looks like we have to replace the whole ...
  A: Andrea, Carrier is no better or no worse then Luxaire and vice versa. Carrier is the same as Bryent ...
Switching from heat to cool?7/10/2009
  Q: I recently moved into a new house with Bryant Central Air. I switched the control panel from heat to ...
  A: Clyton, I don't know what all the switching is? Other then setting the thermostat to cool, I don't ...
attic fan7/9/2009
  Q: I am planning installing an attic fan in my 2-story house. My attic size is approximately 1200 ...
  A: Alex, When the fan is off the the roof vent's will function as they do now. The heat from the attic ...
attic fan7/9/2009
  Q: I am planning installing an attic fan in my 2-story house. My attic size is approximately 1200 ...
  A: Alex, The four existing 8" low profile vents on your roof are vent's. The purpose of these vent's ...
HVAC Register Boxes7/9/2009
  Q: Is there a rule of thumb for sizing the register boxes for an new HVAC system install? Is it based ...
  A: Mike, You want the amount of CFM needed to heat or cool a room, the size of the duct feeding the ...
Air Conditioning condenser won't turn off7/9/2009
  Q: My thermostat for my central air reaches my desired temperature and turns off the fan but not the ...
  A: John, There is a fan in the condenser, there is a blower in the inside house unit, when you say the ...
kenmore 75085 air conditioner sleeve7/9/2009
  Q: How should the Kenmore 75085 air conditioner sleeve be anchored to the studs? There are no pre ...
  A: Randy, I don't do through the wall air conditioners except very rarely. When I do have an occasion I ...
attic fan7/9/2009
  Q: I am planning installing an attic fan in my 2-story house. My attic size is approximately 1200 ...
  A: Alex, I don't have a lot of faith in soffit panels, they are seldom obstruction free and get covered ...
HVAC blower motor problem7/8/2009
  Q: The problem I encountered is with a home A/C blower motor. The unit had been operating correctly ...
  A: Steve, Could be the capacitor or it could be the motor? Sometimes a motor can develop a dead spot, ...
HVAC7/8/2009
  Q: would a bad dual capacitor cause the circuit breaker to trip when the t-stat calls for cooling? What ...
  A: Glenn, The 220 is always on to the contactor inside the condensing unit. The contactor is a ...
Air conditioner contracts7/7/2009
  Q: Trying to help out my elderly father down in Fla. He is asking me about getting a service contract ...
  A: Matt, Sorry, I misunderstood what you were looking at. What you need is a home warranty service. You ...
indoor blower motor size7/7/2009
  Q: What size indoor blower motor (horsepower and rpm)should I use with a system that has a 2 1/2 ton 13 ...
  A: Chris, A blower motor needs to be compatible with the unit it's mounted on. If you have a gas ...
Air conditioner contracts7/7/2009
  Q: Trying to help out my elderly father down in Fla. He is asking me about getting a service contract ...
  A: Matt, A service contract for an air conditioner is just like medical insurance for a person. There ...
plugged up a/c drain7/6/2009
  Q: here's one, I'll bet you never heard!! we live in florida, our air handler is located in the garage. ...
  A: Louis, Can you see the drain pipe all the way from where it connects onto the drip pan to the place ...
York A/C unit7/6/2009
  Q: York condenser unit located outside (model #TCGD48S21S1A), with evap coil and air handler in the ...
  A: Kyle, There are other problems that can ice a coil, If your system is less then a year old you ...
plugged up a/c drain7/6/2009
  Q: here's one, I'll bet you never heard!! we live in florida, our air handler is located in the garage. ...
  A: Louis, All I know is that water runs down hill no problem unless something gets in it's way, There ...
cost of repair7/6/2009
  Q: i had a a/c repairman come out that was refered to me, but he couldnt make it so he sent one of his ...
  A: Doug, I went to the dentist a few weeks ago because of a tooth with a cavity, it didn't hurt but it ...
Save heating7/5/2009
  Q: Jim, I am only using the lower level of a 4,000 sq.ft. house. i would like to shut off heating ducts ...
  A: Ed, Shut off the heating ducts to the three bedrooms, even cover them with some aluminum foil or ...
excessive condensation7/5/2009
  Q: I live in Tucson, Az. in a single wide MH. I have a nordyne e2eb-015ha 4 ton downflow unit and I'm ...
  A: Kevin, I assume your "A" coil is on top of the unit as opposed to the bottom of the unit? The ...
Condensor fan overheats7/4/2009
  Q: Jim, here's the scenario. I have a 32 year old central air unit. Last year the bearings in the fan ...
  A: Ned, The more air a fan motor pushes the warmer it will run and the more amps it will draw. If you ...
Return Air Drop extension for new RA vent7/4/2009
  Q: I am extending the return air drop under my furnace so I can add a second return air vent. I see ...
  A: Gary, There is an International Building Code, IBC that covers the United States of America ...
heat pump cool not cold air7/4/2009
  Q: I have a 2 year old unit 3 ton, that all of a sudden with in the last day has stopped blowing cold ...
  A: Mike, You can buy R22 for about $6 a pound, 410A for about $8 a pound. Is this something you think ...
Return Air Drop extension for new RA vent7/4/2009
  Q: I am extending the return air drop under my furnace so I can add a second return air vent. I see ...
  A: Gary, You can cover the top with 1/2" plywood. My main concern is that the box/platform is sealed ...
heat pump cool not cold air7/3/2009
  Q: I have a 2 year old unit 3 ton, that all of a sudden with in the last day has stopped blowing cold ...
  A: Mike, I don't know your unit?, what they'll do for warranty?, Regardless It really doesn't matter ...
Return Air Drop extension for new RA vent7/2/2009
  Q: I am extending the return air drop under my furnace so I can add a second return air vent. I see ...
  A: Gary, I don't know what your set-up is? Why is your "furnace" sitting up on a constructed "box" The ...
Ruud A/C Blower Problem7/2/2009
  Q: Mr. Barnhart, I have a Ruud A/C Heat pump with gas backup installed in the attic of my home in ...
  A: Terry, Your blower is controlled by a blower relay in your air handler/furnace, the thermostat ...
stumped7/2/2009
  Q: i recently just replaced my outside condenser unit on my home with a ducane 2 ton unit the unit had ...
  A: Jason, I don't know anything about your system except "ducane 2 ton unit"? Sounds to me like you ...
Outside component of HVAC does not turn off7/2/2009
  Q: We have 3 systems in our house. One of the outside units (the condenser?) runs even when the ...
  A: Carol, The outside unit has 220/240 volts of electricity going to its contactor all the time, (the ...
Return vents7/2/2009
  Q: I have a reverse split level about 2100 square feet. Just put in a new ac and furnace. If I put ...
  A: Cory, I looked into my "crystal ball" but I couldn't find anything that show's how your furnace and ...
Goodman HVAC OUtdoor Compressor7/1/2009
  Q: Why does my outdoor 5 ton Goodman HVAC compressor not come on until I hose down the condensate coils ...
  A: Bradley, The fan running cools the condensing coil, or at least that's it's purpose, Your condenser ...
question about an external HVAC air handler7/1/2009
  Q: We have a neighbor who has an external HVAC air handler which is loud enough to keep us awake at ...
  A: Steve, I think your talking a condensing unit? Fifty foot is pretty much the limit with what the ...
inside coil freezing over7/1/2009
  Q: it vibrates, misses my condensate pan and leaks on the basement floor. How do I seal the metal ...
  A: Michael, I think all of your problems are caused from the inside coil freezing over. The water ...
Bryant Air handler7/1/2009
  Q: My air conditioner stopped blowing cold air. I had a technician out and he said because the air ...
  A: C, Coils don't rust, a coil is a copper pipe coil with aluminum fins. Cooling coils condensate, when ...
AC condenser7/1/2009
  Q: Air conditioner is not producing cold air, fan has stopped altogether in the unit outside. Had a ...
  A: Toby, If you lived where I do I could tell you where to get a replacement capacitor, I don't know ...
Trane Air Conditioner6/30/2009
  Q: The electricity in my neighborhood went out on Saturday. We had to leave for several hours. When ...
  A: jewelene, I don't know what all with your "Trane heatpump air conditioner" is not working", If it's ...
Air handling unit6/30/2009
  Q: Sir, I have a trane air handling unit in my basement. I came home from a weekend away on Sunday ...
  A: David, The drain line connection at the unit should be a 3/4" female threaded pipe connection, from ...
Air handling unit6/30/2009
  Q: Sir, I have a trane air handling unit in my basement. I came home from a weekend away on Sunday ...
  A: David, Your description of your unit is a bit un-clear? I don't now how it's installed? Most all air ...
outside condensar freezes on me6/30/2009
  Q: it vibrates, misses my condensate pan and leaks on the basement floor. How do I seal the metal ...
  A: Michael, Again, I have no idea what your doing or what type of system you have? The things your ...
SWAMPED PACKAGE UNIT6/29/2009
  Q: I probably have a wild question, but I'm looking at 2 International Comfort Package units: ...
  A: Marcos, If the units have been under water You most likely would need to replace any and all ...
A/C add-on6/29/2009
  Q: I just received a central air unit but my furnace, a Keep-Rite DC90 ultra high eff. downflow, does ...
  A: Bill, If you want to add AC to the heating system you need an inside cooling coil, an outside ...
heil furnace leak6/28/2009
  Q: I have just noticed that their is a small amount of water leaking where the copper pipes enter the ...
  A: Tom There are different types of cooling coils, I'm not sure exactly what you have, there was no ...
furnace emits dust6/27/2009
  Q: I have a 2-stage gas furnace, with the gas tank in the ground. We had a dust problem from the time ...
  A: JANE, If you have an AprilAire HEPA filter installed at the basement floor between the return air ...
can I upgrade my furnace motor6/27/2009
  Q: and thankyou ahead of time for any helpful info. I currently have a Rheem Classic 90 Plus ...
  A: Mike, First let me say I don't have reference literature, and service manuals for researching ...
condensate off condensar coil6/27/2009
  Q: it vibrates, misses my condensate pan and leaks on the basement floor. How do I seal the metal ...
  A: Michael, I'm not sure what you've got going there but if what you say is actual I would suggest you ...
furnace emits dust6/26/2009
  Q: I have a 2-stage gas furnace, with the gas tank in the ground. We had a dust problem from the time ...
  A: Jane, Give me a description of where your ducts run, where your furnace is installed in the house, ...
Apartment Chill water air conditioning6/26/2009
  Q: I live in a condo and we have central forced air/heat uses hot or Chilled water. One of my unit is ...
  A: Mike, I think your unit has a valve that is faulty, maybe just a loose wire connection. There are ...
RUUD A/C problem6/26/2009
  Q: We lost power and couple of times tonight due to a lightning storm. Now the AC unit will not come ...
  A: Tim, You didn't share a whole lot of information about what it is your calling "AC unit". There are ...
low voltage6/26/2009
  Q: okay let me start by saying i am a residential/commercial service tech. my question is one, more for ...
  A: Eric, The contactor closes when it gets 24 volt's from the thermostat. That's all there is, one 24v ...
HVAC6/26/2009
  Q: We have a Carrier Weathermaker 9200 gas furnace and a 2 1/2 ton airconditioner that were installed ...
  A: Fran, A furnace is a furnace, "furnace" implies, gas furnace. All furnaces in the last twenty or so ...
furnace emits dust6/26/2009
  Q: I have a 2-stage gas furnace, with the gas tank in the ground. We had a dust problem from the time ...
  A: Jane, A furnace "with the gas tank in the ground", that's a new one on me!, I don't know what that ...
Evaporator Coil/Furnace6/25/2009
  Q: I had and two ton condenser installed last year. When I turned the air on this year, the thermostat ...
  A: Katie, your neighbor can get you a coil and a furnace. You can hire any HVAC contractor to install ...
HVAC OR EVAPORATIVE COOLER6/25/2009
  Q: I have a hvac/heating unit that is probably from the 1970's. When the cooling unit is turned on it ...
  A: Chris, I don't know what your environment is like? If your house is in a high humid climate then you ...
Furnace Fan In THe Summer6/25/2009
  Q: I live in the Midwest, where it's been extremely hot lately. Is it best to keep my furnace fan ...
  A: Jon, Leaving the blower run non-stop won't cool anything, it'll just stir the the air, you could get ...
Evaporator Coil/Furnace6/25/2009
  Q: I had and two ton condenser installed last year. When I turned the air on this year, the thermostat ...
  A: Katie, 1. You can use any make two ton coil as long as it's compatible with your condensing unit ...
air conditioner6/24/2009
  Q: My air conditioner will not cool below 75 degrees during the hottest part of the day. Please advise ...
  A: Nodea, The designe tempature diffrential between outside and inside max is indeed twenty degrese. If ...
Need new airconditioner6/24/2009
  Q: My central air conditioner just died and I don't even know a good question to ask when trying to get ...
  A: Sharon, If you know so little about "air conditioning" how do you know your air conditioner is dead? ...
hvac6/23/2009
  Q: We installed a new frigidaire hvac unit in 2004. We have had nothing but trouble w/ the temperature ...
  A: James, If there is a drip pan under the cooling coil and it is at least larg enough to cover the ...
could new thermostat be problem?6/23/2009
  Q: In Dec we had furnace problems. we called a guy who owns his own business. It took him 3 visits to ...
  A: Carol, If the existing thermostat ever operated the air conditioner then it's a proper thermostat. ...
hvac6/23/2009
  Q: We installed a new frigidaire hvac unit in 2004. We have had nothing but trouble w/ the temperature ...
  A: James, I'm not sure what your inside unit is? a gas furnace, a heat pump or something else? "our ...
A/C6/23/2009
  Q: Last year we had our furnace replaced with a great Rheem furnace. At the time our A/C was still ...
  A: Heidi, The furnace/heating system is pretty much separate from the Air Conditioner/cooling system ...
Missmached Components6/23/2009
  Q: i have a 3Ton Trane XE1000 with a Goodman 2.5 Evaporator. The system wants to run constantly and ...
  A: Joseph, You need a 3 ton "Evaporator" or it will never work right, I don't think it's cooling anyway ...
A/C6/22/2009
  Q: My question is my home a/c central unit outside went out. When the fan is on it makes a loud noise ...
  A: Ozzy, I think your on the right track? Sounds like the motor is over heating and shutting off on a ...
Lennox 80MGF3 series6/21/2009
  Q: Turned on my airconditioning for the first time this year today. It ran fine for an hour or so then ...
  A: David, The oil needs to be on the motor shaft not the motor and it's not certain that it will ...
Water in Furnace Floor Duct6/21/2009
  Q: Our basement level has heat ducts in the floor. It is a newer home - 2 1/2 yrs old. We have pumped ...
  A: Ken, I don't think the water is coming from your furnace which is my line. What I do think is that ...
Lennox 80MGF3 series6/21/2009
  Q: Turned on my airconditioning for the first time this year today. It ran fine for an hour or so then ...
  A: David, The problem is the blower motor. I don't know if water got into the motor bearings or some ...
Air filters, location and size6/21/2009
  Q: I have an Intertherm central heat and air unit, unit is working real good, question is, where are ...
  A: Sheila, All indoor units have a place for an air filter in the unit's blower compartment. You have ...
Lennox 80MGF3 series6/21/2009
  Q: Turned on my airconditioning for the first time this year today. It ran fine for an hour or so then ...
  A: David, Fast answer on the unit,"The basement unit is a gas furnace." I don't have reference material ...
No heat, No AC...blower works JUST fine!6/20/2009
  Q: ..I have an Intertherm furnace (not sure what year) in the basement that is killing me slowly. I ...
  A: Sara, What I was trying to imply is that Your furnace and your air conditioner are two separate ...
No heat, No AC...blower works JUST fine!6/20/2009
  Q: ..I have an Intertherm furnace (not sure what year) in the basement that is killing me slowly. I ...
  A: Sara, If you want air conditioning the thermostat needs to be set to cool, the setting needs to be ...
Central Air question6/20/2009
  Q: Long story short - recently my dad did some drywall replacement and sanding of said drywall We have ...
  A: Kara, I don't know what type cooling coil you have or where your furnace is installed in the house. ...
air conditioner central heat and air6/20/2009
  Q: the unit is set to 78 and it ran all day and it only got to 80 then it started getting hotter it got ...
  A: Tammy, If Your system is a split system and the inside air handler is blowing air but it's not cold ...
air conditioner not working!6/19/2009
  Q: We installed a new furnace this winter and now that it is summer we need to have the air. The older ...
  A: Heather, I don't know your furnaces type? There should be a wiring diagram on the inside of the ...
ac unit outside: fan wont turn but it hums6/19/2009
  Q: I have an old ac unit, not sure what year. Last year the same thing happened, the unit outside hums ...
  A: Lauren, Sounds like a faulty fan motor, if you give the fan blade a push with a stick when it hums ...
frozen ac6/19/2009
  Q: My Central AC unit is frozen. We just had it serviced 2 weeks ago, the freon was fine and we also ...
  A: Rachel, Cooling coils usually freeze over from not having enough air flow through them. The number ...
air conditioner not working!6/19/2009
  Q: We installed a new furnace this winter and now that it is summer we need to have the air. The older ...
  A: Heather, First check the 220 double electric breaker that goes to the outside unit, the outside unit ...
Snyder General Comfort Systems Air Handler6/18/2009
  Q: I have an 18 year old Snyder General gas furnace/air handler. Last month while running the AC the ...
  A: Bill, I don't know "Snyder General Comfort Systems Air Handler" there not in my part of the country ...
pressure relief valve6/18/2009
  Q: We are working on a Ray Pak boiler. Currently, there is a 2 mil 70 thous pressure relief valve, and ...
  A: Dawn, Again, I don't know what "2 mil 70 thous" and "2.1 million", means? I don't understand the ...
pressure relief valve6/18/2009
  Q: We are working on a Ray Pak boiler. Currently, there is a 2 mil 70 thous pressure relief valve, and ...
  A: Dawn, I don't know where your at or what your options are as far as buying a PRV. You can order one ...
Rheem AC Air Handler6/18/2009
  Q: I just bought an old office with a 20 year old Rheem AC unit. The office is in south Florida, so it ...
  A: Dan, Thermostats are not very accurate, What the thermostat thermometer reads and the thermostat ...
HVAC water leaking6/17/2009
  Q: I have a Magic Chef HVAC unit in a hall "closet" that is dripping water by the gallons. It has not ...
  A: James, If water is dripping off of the cooling coil into the drip pan and the drip pan has a drain ...
HVAC6/17/2009
  Q: i am having problems hooking up my central air unit to work with my wood furnace. currently i have a ...
  A: Branden, The thermostat is 24 volts it sends out 24 volts to different components depending on which ...
Blower motor not working properly6/17/2009
  Q: I have a Lennox Pulse 21 installed in 1993. I made the mistake of not cleaning the filter properly ...
  A: Stephen, Your question heading say's your from the United States but I got to tell you I don't know ...
Interior walls sweating6/17/2009
  Q: We added a sunroom last fall and now have sweating walls in living rm. While duct work was exposed ...
  A: Karen, I think the ducts are making the drywall space cold enough for the cool to penetrate to the ...
RV Air conditioner6/16/2009
  Q: My 1992 Wilderness 5th wheel RV air doesn't work. It just blows hot air. Can it be repaired? Is it ...
  A: Jack, I don't really do RV air conditioners but to answer your question you can get anything fixed. ...
HVAC6/16/2009
  Q: I just had a technician tell me I needed a new Heat Pump, AC unit and furnace. Our Trane double ...
  A: Sally, The so called "technician" that you let into your home should have not disconnected anything. ...
Copper pipe burst6/16/2009
  Q: I just moved in to a house that has been vacant for a long time and discoverd that the copper pipe ...
  A: Jaime, I don't like water lines in an attic because of the danger of them freezing and splitting ...
Central Air conditioning6/16/2009
  Q: Our upstairs is a lot hotter and more humid than our main floor. Someone told me that this can be ...
  A: Pam, Everybody in the country docent have the same heating or cooling system in there home. If your ...
Heat Pump6/15/2009
  Q: I have an International Comfort fan coil unit in the attic model NFCX2400C1 - Style # FCX2400C - ...
  A: Joanne, All units come from the factory with an air filter inside the bower compartment of the unit, ...
Chrysler AC6/15/2009
  Q: We have an old Chrysler Airtemp wall mount A/C. The blower won't start. I peeked through the ...
  A: Orhan, I can't help with the motor mounts, I'm not sure exactly what they are? try Ace hardware. I ...
Cracks in heat exchanger6/15/2009
  Q: We have the original furnace, in the basement, and it's about 10 years old. We're trying to sell ...
  A: Ali, I don't know what type of furnace you have? some types are more prone to developing a crack ...
Central Air Unit6/15/2009
  Q: I purchased a new furnace & central air unit a couple of years ago. This will be the 3rd summer. ...
  A: Debbie, It's not unusual for a thermostat to be off a degree or two, you just need to allow for the ...
Is the condenser coil the real problem?6/14/2009
  Q: I have a 1900 sq ft single story house in south central Texas. After an air handler change-out the ...
  A: Forrest, There could be any number of reasons for the problem? I doubt if it's the condenser coil ...
HVAC air flow issues6/14/2009
  Q: I have RUUD system (heat pump # RPKA-031JAZ and air handler # RBHA-17J11NFDAI). My house was built ...
  A: David, I know you gave the make and model number of your air handler but I have no easy way of ...
A/C - Outside compressor runs intermittently6/13/2009
  Q: We have a 5-ton Trane A/C system in our house in Texas. Summer's coming up, and it's pretty hot here ...
  A: Matt, This is the way it should work. When the thermostat calls for cooling the inside air handlers ...
HVAC air flow issues6/13/2009
  Q: I have RUUD system (heat pump # RPKA-031JAZ and air handler # RBHA-17J11NFDAI). My house was built ...
  A: David, Where in the house is your air handler installed? Where dose the 12"X12"X18'duct run, roof ...
A/C - Outside compressor runs intermittently6/13/2009
  Q: We have a 5-ton Trane A/C system in our house in Texas. Summer's coming up, and it's pretty hot here ...
  A: Matt, The outside unit is a condensing unit, inside the condensing unit is a compressor and a ...
heat pump vs condenser6/12/2009
  Q: condenser finally bit the dust & furnace also in need of replacement (exiting carrier equip include ...
  A: RayRay, I don't know what your needs are in Virginia as far as heating and cooling? I don't know ...
standing pilot6/12/2009
  Q: For years I always heard that you should not turn off a standing pilot due to risks of damaging ...
  A: Jerry, If you leave your pilot burning for a few months when you don't need it to light the burner ...
Interior walls sweating6/11/2009
  Q: We added a sunroom last fall and now have sweating walls in living rm. While duct work was exposed ...
  A: Karen, I think I have a picture of your duct in the wall kind of? The three ducts are installed in ...
Covering return air vents6/11/2009
  Q: My husband insists that return air vents should be covered so that the cold air in the basement will ...
  A: Natalie, You furnished no information what it is your dealing with? Do you have something in your ...
Split AC Not Cooling6/11/2009
  Q: I have a 1 ton videocon split air conditioner at my home. Most of the time it does not cool i.e. the ...
  A: harish, Your AC should cool regardless of the outside temp. You need to find another service person. ...
furnace type and thermostat6/11/2009
  Q: Could you tell me if a Gaffers & Stattler model U80-2 is a heat pump or furnace? And what is the ...
  A: Robert, A Gaffers & Stattler model U80-2 is a gas forced air furnace. A furnace heats with gas. A ...
AC Ventilation6/10/2009
  Q: We just moved into a new house, and are having a problem with the ventilation in the master bedroom. ...
  A: Keith, Every little bit of information helps in trying to decide the best way to solve a problem ...
AC Ventilation6/10/2009
  Q: We just moved into a new house, and are having a problem with the ventilation in the master bedroom. ...
  A: Keith, Descriptions like "larger duct" and "smaller ducts" don't really give a description of what ...
hvac lightning strike?6/10/2009
  Q: How can I tell if my outside heat pump was damaged to a lightning strike? The repairman said it is ...
  A: Gene, A lightning strike or a shorted 240 volt wire could cause the same damage, there is no DNA ...
copper pipes6/10/2009
  Q: I have been getting estimates on a new 3 ton 15 seer heat pump AC unit. Some companies say the ...
  A: Debra, The existing lines/pipes can be used as long as the insides are cleaned and decontaminated to ...
moving an air conditioner unit6/9/2009
  Q: We have central air. The compressor unit is located behind the house where we'd like to build a ...
  A: Dan, You can move the unit to where it's within 50' of line. To move the unit the system has to be ...
When to replace compressor6/9/2009
  Q: I have a Rheem A/C. Mod RPKA-043JAZ, BUILT IN 2000. THE COMP R.L.A. ON THE LABEL SHOW 21.2/21.2. ...
  A: Stu, You can check the amp. draw on the compressor itself rating plate that should be attached to ...
AC squeal, no cool air6/9/2009
  Q: I have a Bryant Plus 80 gas furnace(basement unit, approx 13 years old) and I just tried to turn the ...
  A: John, If the "squeal" is coming from the outside unit and you have a gas furnace then the outside ...
swamp cooler6/8/2009
  Q: We have a new portable swamp cooler. Works well. Want to add something to the water for the smell ...
  A: Harry, "Gee Whiz" They never taught us anything about chemical additives for coolers in swamper ...
Split HVAC heat pump question6/8/2009
  Q: I have a split system heat pump. The compressor sits outside and the air handler is in the attic ...
  A: Lon, Maybe there are a couple of problems? I have no Idea what the grinding sound is that quits when ...
No Power to Thermostats and Central A/C Unit6/7/2009
  Q: This is the second time I have no power to all the thermostats in the house and to the Central ...
  A: Edwin, Air conditioning is mostly thought of as cooling the air only but air conditioning is exactly ...
fan motor wire colors6/7/2009
  Q: I am attempting to install a new Protech fan motor. The old one just had 3 wires one red , one blue, ...
  A: AJ, Color means absolutely nothing except for the purpose of identifying what the wire is used for. ...
A/C condenser-compressor6/6/2009
  Q: I have discovered the metal cage on outside of my a/c condenser/compressor located on concrete slab ...
  A: Andrea, When your condensing unit was shipped it most likely had some sort of compressor tie down ...
Coils corroded6/5/2009
  Q: An HVAC technician just left after inspecting my upstairs unit, Carrier 38YCC, which is a little ...
  A: Nate, So what did the coil look like to you? What type of problems are you having with the unit that ...
unused upstairs6/5/2009
  Q: We have three bedrooms upstairs -open stairway leads up to them. I have been turning off a/c and ...
  A: S, How warm/hot is "extreme heat"? I don't think 90 degrees will "harm furniture, carpeting" I ...
No Power to Thermostats and Central A/C Unit6/5/2009
  Q: This is the second time I have no power to all the thermostats in the house and to the Central ...
  A: Edwin, I really need a better description of what your dealing with? How many thermostats dose "all ...
Cracked Central AC Coil6/5/2009
  Q: Can a power surge cause a crack in a Central Air coil? Our home get's alot of power surges and it ...
  A: Kathy, Depending on what type of "Central Air coil" your talking about? There is an evaporator ...
Air Conditioning6/4/2009
  Q: I have central air in my home but only the heat setting works. The people who bought the home new ...
  A: Meridee, I don't know what you have in your home? What are you calling "central air"? Heating and ...
Air Handler Location6/4/2009
  Q: We are in the process of building a home on pilings near the coast. We have heard pros and cons on ...
  A: Robert, I don't know anything about your home, what the layout, floor plan is? I don't know what ...
wall thermostat6/4/2009
  Q: home was built in 1980 and wall thermostat is rectangular with a round clock on the right and round ...
  A: Deborah, I don't know what type of unit you have, what the thermostat is controlling? If you don't ...
constant fan NO heat or A/C6/3/2009
  Q: I have an older forced air system by evcon (now owned by coleman). The fan runs constantly, but ...
  A: Jessica, I don't know any thing about not touching a limit switch or it won't work? I've touched a ...
zones6/3/2009
  Q: I am considering leasing a 2500 sq ft leasehold space. I would like to have 4 zones with positive ...
  A: Mark, I don't know what the two 4 ton units are? heating and cooling or just cooling. I don't know ...
elec hum sound ng furn blower compartment6/2/2009
  Q: I have recently noticed a high pitched electrical humming sound coming from inside the blower ...
  A: Fred, That's quite a discription. The impression I got in the beginning was that you had no idea ...
AC cycling on and off6/2/2009
  Q: I have a 19 year old Trane AC unit in a 1600 SQ foot home. The AC fan motor was replaced last year.. ...
  A: Teresa, If your Fan/Blower "is cycling on and off every couple of minutes" prematurely before the ...
AC Fan on Continuously - Doesn't cool much6/2/2009
  Q: I've recently moved from Oregon to Kansas with my boyfriend to an apartment. I only state this ...
  A: Jessica, There are several different methods used for heating and cooling apartment buildings, I'm ...
New central air unit causes health problem, freon related?6/1/2009
  Q: I live in a 50 year old 2-story home. It had one furnace and no central air. Last October, a new ...
  A: Sam, The whole thing sounds screwy to me? The air conditioner uses refringent but it is in a sealed ...
AC FAN MOTOR6/1/2009
  Q: OUR FAN WILL NOT TURN.. THE UNIT MAKES ALL THE SOUNDS OF STARTING UP BUT THE FAN WON'T TURN... MY ...
  A: Debbie, If your talking the condenser fan motor on an outside condensing unit? First you can try ...
Interior walls sweating6/1/2009
  Q: We added a sunroom last fall and now have sweating walls in living rm. While duct work was exposed ...
  A: Karen, It sounds like your ducts are condensating? If you have a duct/ducts that are being used for ...
furnace size for Mn5/31/2009
  Q: I am replacing my 30 yr old forced air gas furnace and air conditioner unit.The existing furnace ...
  A: Roy, I don't know the particulars of your house and I never been in MN. Your best barometer is your ...
HeatPump / AC not working5/30/2009
  Q: Sir, I have 2 Lennox 12HPB Heat Pumps installed outside for my residence. One of the, the unit for ...
  A: Todd, Your question is a bit confusing, I'm not sure if your in a heating mode or a cooling mode? ...
lennox outside home air conditioner5/30/2009
  Q: My lennox air conditioner starts up fine and in about 30 min the fan on top of unit shuts off but I ...
  A: Pat, I think your fan motor is shutting off on a thermal overload switch that is built into the ...
Lennox condenser unit5/29/2009
  Q: I noticed the system wasn't cooling, and after checking a few things, noticed the top-mounted fan ...
  A: Weskeys, I don't think there is breaker inside the unit, maybe a reset on the compressor ? The 240V ...
New Room Additions5/29/2009
  Q: I have four children and three have reached the teenage level and no longer want to share rooms (not ...
  A: Tommy, The same thing applies to the attic as it dose to a cloaed room, after the air goes to the ...
New Room Additions5/29/2009
  Q: I have four children and three have reached the teenage level and no longer want to share rooms (not ...
  A: Tommy, A 10x8x8"Y" may be a little over kill for a 10X12 room. I would think an 8X6X6 would be ...
elec hum sound ng furn blower compartment5/28/2009
  Q: I have recently noticed a high pitched electrical humming sound coming from inside the blower ...
  A: Fred, Exactly: The Blower moves air, air can make a hich pitched sound if it gets to moving through ...
heat control5/28/2009
  Q: We no longer use swamp cooler thus no use for upducts in ceiling for swamp cooler and I notice alot ...
  A: James, You need to insulate from the attic down, Go up in the attic and cover the up-ducts with some ...
Condensor not coming on5/27/2009
  Q: I have a Tempstar Comfort 2000 unit. It worked fine last summer. When I went to turn on the AC ...
  A: Phil, If you have 230 to the contactor and the contactor closes but the power doesn't continue on to ...
heat pump noise5/27/2009
  Q: I have a Lennox Heta pump system, 2 ton, that is about 2yrs. old. Recently when it kicks on, it ...
  A: Leslie, I don't know what you've got for a heat pump? It could be a self contained packaged unit ...
AC Recommendation5/27/2009
  Q: I just moved into an older home(1972) with an outside electrical AC unit capacity of 4 tons, and a ...
  A: John, Not knowing what kind of shape the house and air conditioner is in I can't suggest any ...
air conditioner problem5/27/2009
  Q: I have a Coleman split unit air conditioner. The model number is partially scratched off but the ...
  A: Travis, I don't have reference material for looking up model numbers anyway. It sounds like your ...
Finding leaks5/26/2009
  Q: How do we find a leak in our A/C system? We've had to add R22 twice, and both techs have said we ...
  A: Betty, Heating and air conditioning people are a different breed throughout the USA, nobody dose ...
Rheem AC5/26/2009
  Q: I have a Rheem RGRA-07EYBGS furnace and Rheem A/C, Forced air. They are three years old. I turned on ...
  A: Toby, All that jargon doesn't mean anything to me, you need an electrician or an electrical engineer ...
Finding leaks5/26/2009
  Q: How do we find a leak in our A/C system? We've had to add R22 twice, and both techs have said we ...
  A: Betty, A leak can be anywhere in the system, there are several different methods of finding a leak, ...
Leaking Coil replace coil or whole unit?5/26/2009
  Q: I have a Carrier unit built in 1992. Has not been giving me any problems but it appears to have a ...
  A: Mark, SEER rating is just how much electricity it takes to run the outside condensing unit. With a ...
Leaking Coil replace coil or whole unit?5/25/2009
  Q: I have a Carrier unit built in 1992. Has not been giving me any problems but it appears to have a ...
  A: Mark, I was just trying to determine what was going on with your unit? The things that come to mind ...
new system intermittently stops cooling5/25/2009
  Q: new 14 seer 4 ton amana system installed. blower and compressor. installer has re-blown out the ...
  A: Jeff, If the larger of the two lines that run from the outside unit to the inside unit in not ice ...
YORK DIAMOND 90 Leaks water on A/C5/25/2009
  Q: I have a York Diamond 90 Central Heating/AIr Conditioning system, which we recently started using ...
  A: Keith, The drip pan inside the unit is plugged up or the drain line from the drip pan to the pump is ...
Changing Filter on Furnace5/25/2009
  Q: It would seem simple enough...but I'm trying to change the filter on a Carrier 58SSC Upflow furnace ...
  A: Shahid, There are hundreds of ways to install an air filter to the return air side of a unit. If you ...
Outside A/C unit continues to run5/25/2009
  Q: My outside condensing unit runs continuously no matter what the thermostat is set at or if I switch ...
  A: Tim, The color on wires are just for identification purposes. The control power goes to the ...
Leaking Coil replace coil or whole unit?5/25/2009
  Q: I have a Carrier unit built in 1992. Has not been giving me any problems but it appears to have a ...
  A: Mark, I don't know anything about "American Home Shield" I don't know anything about what led up to ...
HVAC5/25/2009
  Q: Me and my wife are building a new home this year. We have spoken with two builders to get ...
  A: David, There is no benefit if they are both the same BTU heating and cooling and the same efficiency ...
low airflow5/24/2009
  Q: I have a moncrief furnace in the basement of a 1250 sq. ft. home. A gibson 2ton a/c unit has been ...
  A: Mike, Filters are not a big deal when your heating except for keeping the dust down and circulating ...
fridge being left on5/24/2009
  Q: We have a fridge in a cabin in a very tropical climate. Since we only will be there one or two ...
  A: Laura, I don't do refrigerators. But I have a fridge in a cabin in a remote area of the mountains. ...
Air Conditioner5/23/2009
  Q: I have a new house (2,500 sq ft), looking to purchase a 2.5 unit 14 SEER, I am confused, should I ...
  A: coolboy78, If your cooling the whole 2,500 square feet which shouldn't include a basement, closets, ...
HVAC5/23/2009
  Q: Me and my wife are building a new home this year. We have spoken with two builders to get ...
  A: David, A split system is with the air handler inside (you didn't say what type of heat, gas, ...
Plenum requirement5/22/2009
  Q: My 20 year old heat pump has finally bit the dust. This is a split system with the air handler ...
  A: Jay, If the guy is replacing the air handler reconnecting the return air duct should be included in ...
HVAC Low voltage thermostat5/21/2009
  Q: Jim, I just am trying to confirm something about the wires coming from my HVAC system to the ...
  A: Stuart, If you have a control, a component that takes 24 volts to operate it you need a 24 volt line ...
re: fan switch on Lux5005/21/2009
  Q: My Lux500 has a switch to turn on the fan all the time, but it does not work. The fan switch only ...
  A: Randy, With a 24 volt heating/cooling thermostat the fan switch when in the ON position sends a ...
NuTone Airconditioners5/21/2009
  Q: We need to have our air conditioner and furnace replaced. We've done our homework and, at this ...
  A: Reigna, It get's a little complected when you furnish your own equipment. I'm not sure what exactly ...
NuTone Airconditioners5/21/2009
  Q: We need to have our air conditioner and furnace replaced. We've done our homework and, at this ...
  A: Regina, Newtone is no better or no worse then any other brand of heating or air conditioning ...
furnace blower cycling off and on5/21/2009
  Q: We have an older Coleman gas furnace in our mobile home. The thermostat has been turned all the way ...
  A: Lisa, I don't know which old model Coleman furnace your dealing with but it sounds like the fan ...
Comparable Old to New Equipment5/20/2009
  Q: I have a Carrier (gas) heating and (electric) air conditioning system that is old. I purchased my ...
  A: Warren, Model numbers are ever changing, Every time a batch is run off the assembly line with an ...
high pitch sound when airconditioner turned on5/20/2009
  Q: we have a centralized cooling and heating system and each time the airconditioner is turned on ...
  A: Sergio, Most likely an air noise from the blower in your inside unit? When your thermostat is in the ...
Ticking noises from the A/C5/20/2009
  Q: When the a/c comes on I can hear a ticking/dripping noises coming from only one vent. The a/c is ...
  A: Carolyn, "little box sitting next to the tubes"? I don't have any idea of what your talking about? ...
Comparable Old to New Equipment5/19/2009
  Q: I have a Carrier (gas) heating and (electric) air conditioning system that is old. I purchased my ...
  A: Warren, As far as I can tell from your Question is the only problem that your having is that the ...
HVAC Low voltage thermostat5/19/2009
  Q: Jim, I just am trying to confirm something about the wires coming from my HVAC system to the ...
  A: Stuart, The thermostat and power are 24 volt. The wire that connects to the RC, RH terminal is the ...
Old Gas Furnace...5/19/2009
  Q: My grandmother-in-law has a Monogram gas furnace. It sits in the wall and blows straight out into ...
  A: Josh, It take's 24 volts to open the gas valve, when the gas valve opens the gas flows out the ...
Heil furnace main burner don't ignite5/18/2009
  Q: I have a 11 (about) year old ultra high efficiency propane Heil home furnace. The exhaust fan, and ...
  A: Don, I wouldn't suggest that you take the cover off and then try to fire the furnace. If you can see ...
Heil furnace main burner don't ignite5/18/2009
  Q: I have a 11 (about) year old ultra high efficiency propane Heil home furnace. The exhaust fan, and ...
  A: Don, The way it works is that the igniter glows, the gas valve opens and the igniter lights the gas. ...
central AC model comparison5/18/2009
  Q: Please, Consumer Reports doesn't address this: How do Carrier, Luxaire (York), Trane, Heil, compare ...
  A: Colleen, I don't know where you live? I don't know what your options are? What are you doing for ...
central AC model comparison5/17/2009
  Q: Please, Consumer Reports doesn't address this: How do Carrier, Luxaire (York), Trane, Heil, compare ...
  A: Colleen. Residential heating and air conditioning equipment is about as equal as anything in ...
Central A/C not cooling5/16/2009
  Q: the outside system lines froze up on the 12th and I had a tech come out. He added 5 (R-22). I turned ...
  A: Kara, The compressor could make a humming sound if it were trying to start but couldn't. The ...
Central A/C not cooling5/16/2009
  Q: the outside system lines froze up on the 12th and I had a tech come out. He added 5 (R-22). I turned ...
  A: Kara What dose your outside coil look like? Is it clean or clogged? Can you hear the compressor ...
CO Level5/16/2009
  Q: What level of CO is acceptable in the airstream heating the living area?
  A: ANN, 0 to 9 parts per million (ppm) Normal - No Action: Typical from: outdoor sources, fumes from ...
Furnace Air inlet5/15/2009
  Q: the rollout switch on my furnace keeps triggering. I read the manual and it sounds like this is due ...
  A: Steve, You didn't give any information? Description of your furnace, Nat.gas, LP gas, Oil, Electric ...
Old Gas Furnace...5/15/2009
  Q: My grandmother-in-law has a Monogram gas furnace. It sits in the wall and blows straight out into ...
  A: Josh, A fifty year old heating only furnace with a standing pilot light needs only a two wire ...
air temp outside vs inside5/15/2009
  Q: Is there a standard for temp differences from outside to inside to determine how well insulated a ...
  A: James, If the outside tempature was constantly 80 degrees and there was nothing happening inside, ...
Modifying the air return on an existing forced air furnace5/14/2009
  Q: My son just purchased an older home. The furnace is located in the crawl space. The return air ...
  A: Kirk, It sounds like a plan. You need to maintain at least 200 square inches of free area going down ...
a/c vents5/13/2009
  Q: So I have been trying to adjust a/c vents to direct more air flow to west side bedrooms in our az ...
  A: James, As the exposure increases the conditioned air needs to increase. It's the same difference as ...
Leak Test5/13/2009
  Q: I have been quoted a leak test by 2 different guys. The cheaper guy uses a electronic device to ...
  A: Mike, I don't know what your system involves, capacity, access, split, self contained, etc, etc, ...
Compressor Does Not Turn On5/13/2009
  Q: Jim, I have a 10 year old split system with a gas heater. My issue is with the outside unit - ...
  A: wes, Check with your electric utility company. Where I live this is not a proublem, it's non exist ...
a/c vents5/13/2009
  Q: So I have been trying to adjust a/c vents to direct more air flow to west side bedrooms in our az ...
  A: James, Thermostats are not 100% accurate, The part that reads the tempature (no display) and turns ...
HVAC troubleshooting5/12/2009
  Q: I am having trouble with my AC unit. I have found some of the pipes in the unit's "closet" to have ...
  A: Darci, It's all but impossible to give an intelligent answer when you can't see the whole pitcher? ...
Mystery electric usage5/12/2009
  Q: We have been struggling for years with high electric usage. We live in a 8 year old custom built ...
  A: John, I don't know anything about your house or your neighbors house, I don't know what your using ...
AC/heat5/11/2009
  Q: I just received a quote to get a new split unit AC installed in my house. I was quoted $5400. With ...
  A: James, SEER ratings are for condenser units efficiency, it's for the amount of electricity that the ...
HVAC /split system5/11/2009
  Q: I have a split system that services my upstairs area that will not come on. I've checked the ...
  A: Randy, An "evaporator" is just a cooling coil that is installed in or added onto any number of ...
HVAC /split system5/11/2009
  Q: I have a split system that services my upstairs area that will not come on. I've checked the ...
  A: Randy, What is your system a Heat Pump? What will not come on, the attic unit, the outside unit, ...
A/C Blower Cuts Off After Operating5/6/2009
  Q: Lennox G40UH(X) Series A/C Blower stops working after a half hr or so. They replaced capacitor and ...
  A: Ron, Not that it matters or has anything to do with the blower stopping but I have no idea what a ...
Air Conditioner Unit5/5/2009
  Q: I live in AZ in a Manufacture home, 1900 sq ft. We need to replace our A/C unit. I've been told ...
  A: Lisa, The outside unit is the condensing unit. The inside unit is the air handler. The cooling coil ...
What type or brand central air conditioner for a manufactured home5/5/2009
  Q: Bought a brand new manufactured home with gas force heat but no central air. The house is 1600 sq ...
  A: Dee Dee, Heating and air conditioning equipment as well as duct work or anything else involved with ...
outside ac unit on old bard heat pump5/5/2009
  Q: had one tech tell me the clock was out on unit .it kicks in and out continuosly after it warms ...
  A: Terry, I don't know anything about a "clock" in a condensing unit? unless it's a timer that somebody ...
Return Air Size5/5/2009
  Q: I have a 3.5 ton central air it has been freezing up. i have a 14 inch air return. Was wondering if ...
  A: Joshua, You should have at minimum 200 square inches of free air space for the return air to flow ...
wall furnace for camper, general?5/5/2009
  Q: Ihave a model 15T, LPG duo-therm wall furnace for a camper. i didn't use it for a few years and took ...
  A: Roy, Copper Is a great material for absorbing and holding heat. Regardless of the heat problem you ...
P-Trap Location Condo Building5/4/2009
  Q: Whenever it is windy outside, there is a horrible garbage smell that comes from the wall around the ...
  A: Ronnie, Air conditioning unit's that have cooling coils inside the case have a drip pan underneath ...
AC cuts off after a minute5/3/2009
  Q: I have a 20 year old 2 speed lenox central HVAC system. This is the first time this season that I ...
  A: Reggie, The inside unit supplies the 24 volts needed to activate the contactor in the outside ...
A?C Coil, vent and returns5/3/2009
  Q: I have a 5 year old 4 ton system that continues to freeze up. I am constantly told the Freon is ...
  A: Corey, First, If the cooling coil has a leak then the system is not going to blow out any colder air ...
2nd Floor Air FLow5/3/2009
  Q: I have a 1 1/2 story home with a Trane 2.5 ton combined gas furnace - AC unit, 14 SEER. The air ...
  A: Bob, The problem I have in trying to offer some solutions is that I don't know what people have for ...
2nd Floor Air FLow5/3/2009
  Q: I have a 1 1/2 story home with a Trane 2.5 ton combined gas furnace - AC unit, 14 SEER. The air ...
  A: Bob, Air as it flows through the system from the return grill/grills to and out the supply registers ...
need schematics5/2/2009
  Q: i have a payne heating and cooling unit model number ph1zna030000aaaa serial number 3599g42198 and i ...
  A: Ronald, I don't know any person, place, that has what your looking for. I suppose you could contact ...
AC unit5/2/2009
  Q: My 10 year old American Standard AC unit is leaking coolant. It was charged up last summer & worked ...
  A: Diane, All you can do is get several free prices and opinions both ways. I don't know what your AC ...
Air Conditioner Unit5/1/2009
  Q: I live in AZ in a Manufacture home, 1900 sq ft. We need to replace our A/C unit. I've been told ...
  A: Lisa, Ducane was Purchased by Lennox in 1999 and was added it to a whole bunch of other brands of ...
Air Conditioner Unit5/1/2009
  Q: I live in AZ in a Manufacture home, 1900 sq ft. We need to replace our A/C unit. I've been told ...
  A: Lisa, Ducane is no better or worse then any other brand. The 4 tons sounds about right, Which ...
Comparisons5/1/2009
  Q: I need to purchase a new heat/air unit. I cannot seem to find a site that will show comparisons ...
  A: Dolores, All off the heating and cooling brands claim to be the best when in fact they are pretty ...
Sizing BTU for a cottage5/1/2009
  Q: Sorry for the confusion . The 50% and 70% are percentages on the second and first floor square ...
  A: Andrew, A mini split is like a through the wall unit or through the window unit except it's a split ...
vent covers4/30/2009
  Q: I have had my old air conditioning/heating system replaced with a new one, where all the vents are ...
  A: uli, There called floor registers if they have a damper, if there is no damper there called floor ...
heat exchanger4/30/2009
  Q: I have a 1985 Bryant gas furnace. I'm told the heat exchanger has failed and that it is more cost ...
  A: Curt, What type of "Bryant gas furnace"? Up, Down, or Horizontal flow? Maybe a roof top furnace? ...
dripping coil pan4/30/2009
  Q: I have a arcoaire heating and cooling unit, it is over 20 years old. The coil is leaking water. ...
  A: Patric, I don't no what you have going there but there is no "water" associated with your cooling ...
Central Air Blower4/29/2009
  Q: I have a Janitrol heat pump with central air. The furnace and blower worked fine all winter. We ...
  A: Brent, When it's working it's working. When it's not working check with an electric tester to see if ...
Flushing out hot air from a second floor house4/29/2009
  Q: I have a central AC unit where the typical thing happens, the first floor is ice cold and the ...
  A: Benjamin, Air flow's the easiest route. If you tapped into floor return to pull air from the ...
Replace a 14 SEER with a 15 SEER?4/29/2009
  Q: Our 10 year old 14 SEER Trane system has to have the coil replaced. We are wondering if it would ...
  A: Susan, You have to do the math, I don't know what you have to pay for electricity in your area? I ...
Central Air Blower4/29/2009
  Q: I have a Janitrol heat pump with central air. The furnace and blower worked fine all winter. We ...
  A: Brent, When your thermostat is in the heating mode it switches the blower relay/fan center to a ...
ck24-18 HVAC unit4/28/2009
  Q: We have a CK24-18 Goodman HVAC unit that is not working and has never since we bought our house last ...
  A: Natalie, CK on a Goodman condensing unit from about twelve years ago followed by the first two ...
air conditioning filters4/28/2009
  Q: I was told I need to replace/clean my filters every year...the only filter I know about and do ...
  A: Tracey, Since I don't live in your house or have never been there "the one located on the wall by my ...
Central Air Blower4/28/2009
  Q: I have a Janitrol heat pump with central air. The furnace and blower worked fine all winter. We ...
  A: Brent, I think your blower motor is faulty or it could be the blower relay control for your unit. ...
fan on rheem a/c outside wont kick on4/28/2009
  Q: ...when i turn the thermostat on inside,,,,,,,,to cool/auto....it kicks on and blows air out ...
  A: Pat, If the outside fan doesn't run the problem could be. No line voltage power going to the unit, ...
Broken AC Unit4/27/2009
  Q: My compressor is bad and my ac stopped working. I'm gonna have to wait a week or so to fix it. In ...
  A: Steve, You can remove the cover to the blower compartment and pull the air from the space where the ...
Broken AC Unit4/27/2009
  Q: My compressor is bad and my ac stopped working. I'm gonna have to wait a week or so to fix it. In ...
  A: Steve, If the outside tempature is cooler then the inside tempature open the windows. Don't open ...
Air Conditioner - No power at the Thermastat4/27/2009
  Q: I have no power to my thermostat, I checked the breaker box and everything seems to be fine. I ...
  A: Lance, What you have is a split system, Condensing unit outside and an air handler inside in the ...
heat pump4/27/2009
  Q: yeah i have a trane package unit heat pump and have had the guys at trane come at least 8 different ...
  A: Matthew, It sounds like your "package unit" is not getting enough return air. The cooling ...
hvac4/26/2009
  Q: Summer day, a customer calls in an say that their split system heat pump is heating instead of ...
  A: Wanda, Thermostat not switching? Shorted low voltage wires? Reversing valve faulty? Take the R and Y ...
swapping AC units4/26/2009
  Q: My old house has a York MC42-10A central AC unit. It is at least 25 years old but still working. My ...
  A: Peter, There has got to be hundreds maybe thousands of model numbers for air conditioners especially ...
air handler4/26/2009
  Q: How do I clean my indoor coils or why do I get ice on my coils when I run my AC
  A: Jamal, The unit needs a clean filter, an unobstructed return air flow. How to clean the coil depends ...
HEAT PUMPS4/25/2009
  Q: I'm in the market for a new AC/Htg system. I live in southwest Florida. If you were me, would ...
  A: Doris, I didn't say you don't "need a heat pump to cut down on the electric bills". A heat pump at ...
A/C Not Cooling4/25/2009
  Q: So I got a call from my wife today saying that the a/c had been running all day but was not cooling ...
  A: Mark, I'm not sure what your system is exactly? You didn't specify. I'm assuming that it's a "Heat ...
Red-Flagged Furnace4/25/2009
  Q: My fiance and I are purchasing a home and have just had a home inspection. The forced air furnace ...
  A: Rachel, The term is "Red Tagged". The reason a furnace is "red tagged" is because it's dangerous to ...
isolated (one time I think) popping sound from heater closed when unit off4/24/2009
  Q: We have a York Infinity furnace and air conditioner (split system). The furnace and blower are ...
  A: Lorna, York has an Affinity, Carrier has an Infinity. The York Affinity model comes in 80% and 90+% ...
HEAT PUMPS4/24/2009
  Q: I'm in the market for a new AC/Htg system. I live in southwest Florida. If you were me, would ...
  A: Doris, A heat pump is just an air conditioning unit that has a couple of extra controls which allows ...
hvac supply side condensation4/23/2009
  Q: while adding a light fixture in the Attic i discovered that my insulation was filled with water, it ...
  A: Mike, I can't get a picture in my mind as to where the problem is in relation to the condensation ...
attic furnace options/alternatives4/23/2009
  Q: background: I purchased a slab home with a quality furnace in the attic. problem: I lose a lot of ...
  A: Peter, Snow melting on the roof above the furnace more then any place else is pretty much normal, ...
attic furnace options/alternatives4/23/2009
  Q: background: I purchased a slab home with a quality furnace in the attic. problem: I lose a lot of ...
  A: Peter, I don't know what your furnace is? gas furnace, electric furnace, heat pump, heat only, ...
trane hvac unit4/23/2009
  Q: I live in Las Vegas so ac is a must.I recently installed a new T-stat in my home. My system ran fine ...
  A: James, Information really help's. If you have one unit on the roof only then you have a self ...
Duct work4/22/2009
  Q: I just had to install a new furnace. Modifying the new duct work left a couple of open areas at the ...
  A: Fred, No idea what the dimensions of the "open areas at the connection points" are? There is duct ...
heil air conditioner4/22/2009
  Q: My Heil a/c unit is not functioning properly. The fan(which is mounted under the top cover) does not ...
  A: Joshua, The motors don't have any place you can squirt some oil in, the motors are supposed to be ...
AC leak4/22/2009
  Q: I have a leak in my home AC. Is there a product that can stop the leak? If not and it is in an area ...
  A: Darren, When any part of the system develops a leak even if you can get at the "hole" once the ...
trane hvac unit4/22/2009
  Q: I live in Las Vegas so ac is a must.I recently installed a new T-stat in my home. My system ran fine ...
  A: James, Assuming that you have a split system, unit in the attic, and a unit outside. When the ...
getting rid of cooler4/22/2009
  Q: Were getting roof redone and want to get rid of swamp cooler. What is the best method? Roofer says ...
  A: James, The hole in the roof can be patched and roofed over By anyone that knows what there doing. ...
Need to move my a/c control panel4/21/2009
  Q: had to remodel are home due to Katrina. but it seems the a/c control is not reading the proper temp? ...
  A: Kim, The thermostat on the wall has some low voltage 24 volt wires connected to it, the wires are ...
lennox pulse4/20/2009
  Q: I have a pulse g21 that was installed in 1993. I have had numerous problems with it. 2 gas valves ...
  A: Greg, If you have spark and you have gas you should have ignition. When the induced draft vent ...
Central Air4/20/2009
  Q: I just recently moved into a new home and noticed shortly after moving in a whistling noise when my ...
  A: Jen, The way your filter is mounted, the size of the filter, the type of filter, all combined ...
Need to move my a/c control panel4/19/2009
  Q: had to remodel are home due to Katrina. but it seems the a/c control is not reading the proper temp? ...
  A: Kim, If there is something interfering with the temperature around the thermostat such as a vent ...
Heat/AC systems both run, but no heat/ac?4/18/2009
  Q: Natural Gas Furnace, and I believe electric central air conditioner. A couple of days ago I noticed ...
  A: Jonathan, It sounds like the blower in your furnace isn't running. It could be a faulty motor, a bad ...
AC pricing in NE Florida4/18/2009
  Q: I am currently building a new house - 2 story in NE florida. Living SF is 4300. My gen contractor ...
  A: Craig, Yes it seems like a large cost to upgrade. I don't think you need a dehumidifier at all. Yes ...
air in water pipe4/17/2009
  Q: We had the town turn off our outside water to avoid freezing of the outside pipe while we spent 5 ...
  A: Don, If your hot water boiler is installed properly which I'm sure it is even if there is air in the ...
AC handler4/17/2009
  Q: I need help and this is the problem "Compressor will kick on but the air handler will not" I switch ...
  A: Nelson, You need to get at the unit too check it out but from your description of having to turn the ...
Zone Valve Issue??4/17/2009
  Q: This morning I woke up to no Hot Water. I have a two zone system on my oil burner. One zone is a ...
  A: Chris, Disconnect the two wires from the thermostat and twist them together allowing to bypass the ...
Furnace will not light4/15/2009
  Q: I recently bought a house with a dual heater setup. The furnaces are original with the house, and ...
  A: Thomas, Most all furnaces now days, the main circulation blower is on a delayed timer switch that ...
air circulation4/15/2009
  Q: Jim, I am in the process of building a 28' x 40' gambrel barn style "cabin" in West central ...
  A: Gary, Heat from the wood burner stove (I assume on the main floor) is going to rise up to the peak. ...
Heil gas furnace fails to ignite4/15/2009
  Q: I own a Heil gas furnace that is less than one year old. Lately, it has been failing to ignite. The ...
  A: Phil, First the vent exhaust blower runs. When the exhaust blower runs it closes the pressure switch ...
York Heat Pump Blower issue4/14/2009
  Q: I have a York heat pump that the blower won't shut off. I called a contractor who said the blower ...
  A: Harry, When your thermostat is in the heat mode and the fan switch is set to AUTO, when the ...
ducted heating intake4/14/2009
  Q: I am planning to remodel the interior of our house, which will have to include moving the intake ...
  A: Allison, What matters is what is the smallest space that the return air passes through to get from ...
Need to replace heat pump4/14/2009
  Q: Our A/AC/heating is out and needs to be replaced. I have a few questions about the correct tonage ...
  A: Len, There is a lot more to sizing an air conditioner then square footage. If you had a working air ...
Heating & Air4/14/2009
  Q: My thermostat will let you change temps etc, but nothing happens. No cool air, no hot air, no fan. ...
  A: Karen, There are probably a thousand or so different thermostats hanging on peoples walls. There are ...
major return issue4/12/2009
  Q: We have major issues with our HVAC. I think the previous owners went with the cheapest bid--and now ...
  A: Mark, If your furnace is blowing air out through the supply registers then it's getting air from ...
Residential Air Conditioning4/12/2009
  Q: Our residential Air Conditioning system (condenser?) is located in our attic. We had tenants in our ...
  A: Roxane, The outside unit is the condensing unit. The unit in the attic is an air handler or furnace. ...
Floor Heating Vent4/12/2009
  Q: There is a heating/cooling vent on the floor of my bathroom that I do not want because I had a ...
  A: Holly, For some people heat in the bathroom is a must. One option is to relocate it to a wall vent. ...
A/C odor4/12/2009
  Q: I haven't used the A/C for several months. I just turned it on a couple of times last week and it ...
  A: Stan, I suppose the odor could be from "stuff" that got through or bypassed the air filter and ...
HVAC smell4/11/2009
  Q: I just moved into a condo that has Seasonmaker fan coil radiators installed throughout to provide ...
  A: Rene, The drip pan and drain line are for the air conditioning portion of the fan coil unit. When ...
HVAC smell4/11/2009
  Q: I just moved into a condo that has Seasonmaker fan coil radiators installed throughout to provide ...
  A: Rene, A drain line from a drip pan to the place it drain's to is at the discretion of the ...
heat or cool won't shut off when temperature reached4/11/2009
  Q: I live in a condominium where each apartment has a heat/cool unit connected to some building ...
  A: Ted, It's kind of unusually to have a constant fan, I guess it's OK if you don't have to pay the ...
General4/9/2009
  Q: I would like to ask the additional question regarding heat pumps as opposed to heat strip systems. ...
  A: Doris, Cooling coils are both copper tubing with aluminum fins. Every "contractor" has a favorite ...
converting to electric4/9/2009
  Q: My husband and I are thinking of purchasing an older home built in 1914. Previously the house was ...
  A: Toni, I don't know enough about the house to comment on duct work, like if there is a place to run ...
low voltage problem4/8/2009
  Q: touch yellow t-stat wire to y terminal on outdoor unit and it blows the 24v fuse on the air handler?
  A: Bob, Assuming that the yellow wire is connected to Y terminal on the inside then you need to check ...
what is better goodman or ruud4/8/2009
  Q: we are currently having a guy install a ruud 3.5 410 gas pack series in our 18 year old home. when I ...
  A: Ylonda, Ruud is the same as Rheem only the paint might be a different color. Rheem Manufacturing is ...
my water boiler doesnt fill up with water4/8/2009
  Q: i have pretty old Repco gasfired water boiler. recently i have drained all the water out of the ...
  A: Sean, I don't know what your opening and closing? A manual water valve? The next thing in line after ...
Coil replacement4/7/2009
  Q: can a leaky coil be repaired or does it have to be replaced? Also, at what age do you replace the ...
  A: Bob, It depends on the leak? If it's visible, accessible, doesn't resemble a blowout or explosion it ...
Furnace4/6/2009
  Q: I have a Lennox 80MGF Series furnace that is 12 years old. Lately, we noticed that when it kicks on, ...
  A: Dennis, I couldn't begin to hazard a guess how much it might cost if you call a service tech? About ...
Furnace problems4/6/2009
  Q: I have a Goodman furnace (60k GMNT060-3) that will light only the first burner half the time. It ...
  A: John, at the front of the burners there is a track/tube/channel type thing that touches the three ...
condenser unit4/6/2009
  Q: Someone recently sat on our condenser unit outside. There's no visible damage, but could there ...
  A: Melissa. If the unit works and there is no visible damage I think it would be impossible for there ...
A/C issue4/5/2009
  Q: I have a Hvac goodman ck42-1c unit and several days ago the A/C in the house stopped working. When ...
  A: Walter, When you say "no air blows inside" do you mean that the blower in your inside unit isn't ...
Ruud followup4/5/2009
  Q: Jim, I finally got everything back together (after a good cleaning) of my Ruud unit I wtote to you ...
  A: Chris, I'm not an electrician but there are usually several places in a house that you can connect a ...
Dripping evaporator4/5/2009
  Q: My evaporator drip pan was blocked with rust. I cleaned it out and ran hot water and bleach through ...
  A: Paul, Since you didn't give a description of what your unit is such as up, down, or horizontal flow? ...
Gas Dryer4/5/2009
  Q: I am an HVAC student with 2 of 7 months of school so far so I have limited training. My parents ...
  A: Brian, Laundry appliances,kitchen appliances doesn't really fall under the scope of HVAC. I don't ...
electric baseboard heater4/5/2009
  Q: It is an ELECTRIC baseboard heater. My questions are how long should the smell last and is there ...
  A: Pete, You can be sure that any type of electric baseboard heater that is new, packaged from the ...
RUUD Silhouette Mod. # UGDG 07EAUER Furnace w/ natural gas heat4/4/2009
  Q: HOW do I get to the blower motor to change it out?? This unit is mounted in a closet and there is no ...
  A: Chris, There are hundreds of different makes,models,types of furnaces in service. I don't have ...
ITT Millivolt Thermostat4/4/2009
  Q: I have a very old under the floor mounted gas heater which is controlled by an ITT millivolt ...
  A: Bob, Most likely the only thing you can do is replace the thermostat. Take the front cover off of ...
home hot water furnances4/3/2009
  Q: how can i stop the banging noise coming from the hot water pipes ANSWER: Dick, If your talking a ...
  A: Dick, I don't know how your boiler is piped? I don't know if there are separate zones, shutoff ...
Add variable-speed fan and thermidistat?4/2/2009
  Q: I would like to upgrade to a thermidistat to get the advantages of dehumidification, but it looks ...
  A: Pete, You need 400 CFM for every ton of cooling, the inside unit is matched to the outside units ...
Add variable-speed fan and thermidistat?4/2/2009
  Q: I would like to upgrade to a thermidistat to get the advantages of dehumidification, but it looks ...
  A: Pete, You can change or have it changed to just about anything that you want to in the way of a ...
milivolt floor heat system4/1/2009
  Q: My house was built in the 1930's and I have a single floor vent for my gas heat. Today, as always, ...
  A: Kim, There should be two wires coming out of the wall connecting to the thermostat R and W post ...
BTU's on Furnace3/31/2009
  Q: I received 3 quotes for a new furnace as I have a Moncrief from approximately 1971. I'm confused on ...
  A: Lisa, Your existing furnace has a rating plate stuck on it some place around the control ...
HEAT PUMPS3/31/2009
  Q: I would like to ask the additional question regarding heat pumps as opposed to heat strip systems. ...
  A: Doris, If you live in a climate that gets colder then 50 degrees outside occasionally you need ...
evaporator coil3/30/2009
  Q: I have just been told that I have a leak in the evaporator coil...AGAIN. this will be the 3rd coil ...
  A: Lorri, The cooling coil Has no moving parts, nothing that's going to ware out. It's a little ...
Gas Burner Won't Stay On3/30/2009
  Q: The thermostat turns on the system, fan and igniter starts, then the burner kicks on. A few seconds ...
  A: Susan, It sounds like the flame sensor to me. The key to the flame sensor being the problem is how ...
evaporator coil3/30/2009
  Q: I have just been told that I have a leak in the evaporator coil...AGAIN. this will be the 3rd coil ...
  A: Lorri, All "evaporator coil's" are not the same configuration or installed in the same manner. It's ...
Boiler (hot water system) with central air3/29/2009
  Q: My wife and I are looking at purchasing a home that currently has a hot water baseboard heat. The ...
  A: Erik, I don't know what model baseboard you have but it should be only about 2" deep. Rather then ...
Air Conditioning and Air Distrubution3/29/2009
  Q: Barnhart, I hope you can help with a matter that has been a bone of contention between my housemate ...
  A: Kathleen, Air conditioning a space or an individual room with the door and window/window's to the ...
Boiler (hot water system) with central air3/29/2009
  Q: My wife and I are looking at purchasing a home that currently has a hot water baseboard heat. The ...
  A: Erik, You can't add air conditioning to the existing hot water heat system. For Central whole house ...
Metalbestos Chimney3/28/2009
  Q: On remodeling - we want to remove a Metalbestos Chimney, model 7k-30, in our home. The house was ...
  A: Judy, Forty-fifty years ago a Metalbestos Chimney, model 7k-30 could well have asbestos inside ...
Cold air return sizing3/28/2009
  Q: I have a 4yr old house and I am finishing the basement. There is 1 bedroom (10x12) and the rest is ...
  A: Anthony, If you want to heat a basement area you need a return at the floor or within 6", if the bed ...
Air Conditioning problem/schroeder valve?3/25/2009
  Q: 2.5 Ton Goodman air conditioner installed June of 2004 by a local contractor($2,800)on the roof of ...
  A: Barb, I can't vouch for any one of the three. I don't know what "leaking all the way around" or ...
central air vent bringing in smoke from other apt.3/25/2009
  Q: I live on the second floor of an apartment that is less than twenty years old. It has central air ...
  A: Roberta, I don't know where your apartment is located but pretty much in any building municipality ...
Keeprite 80+ 8MPT troubleshooting problem3/25/2009
  Q: Our 8MPT died in the middle of the night about 10 days ago after 4 1/2 years of operation. We called ...
  A: Barry, Sounds like a problem with the Induced draft vent blower, either the way it's vented or the ...
House fresh air intake3/23/2009
  Q: I have a 1,700sq.ft house in Wisconsin. I run the fan continuously to filter the air, even when the ...
  A: Mike, Usually a furnace in the basement has it's filter where the return air drop duct comes down ...
House fresh air intake3/23/2009
  Q: I have a 1,700sq.ft house in Wisconsin. I run the fan continuously to filter the air, even when the ...
  A: Mike, All the air going into your blower compartment should be filtered. The amount of CFM moved ...
Gas Furnace3/23/2009
  Q: Jim, I've been reading some of the other questions asked of you and I seem to have a fairly frequent ...
  A: Barry, What you said in your first question " The ignitor will glow and the burner starts to light, ...
Gas Furnace3/22/2009
  Q: Jim, I've been reading some of the other questions asked of you and I seem to have a fairly frequent ...
  A: Barry, There are hundreds of different type furnaces with ever changing model numbers, serial ...
a/c repair3/21/2009
  Q: Do you think it is pushing the envelope to replace a condensor fan motor on a 30 year old carrier ...
  A: Howard, My choice for myself would be to replace the motor and capacitor, also the fan blade if need ...
hot water baseboard heating element covers3/20/2009
  Q: I can't seem to find the "wide" size I need; don't actually know what these covers are called so as ...
  A: fj, Just type in "Baseboard Radiation element and cover", you should get plenty of sites to look at. ...
Cast Iron radiator for toe kick heater3/19/2009
  Q: I am redoing my kitchen, moving wall and cabinet. The good old cast iron radiator is in the way. ...
  A: Danny, You can install a "toe kick heater" or any other type of hot water heat distribution device ...
Bathroom Exhaust Fan3/19/2009
  Q: At work I have a bathroom exhaust fan power running off the florescent light fixture and it causes ...
  A: Randall, If the positive line voltage wire coming from the light switch feeds both the fan and the ...
Leak in A/C unit3/19/2009
  Q: Last summer our air conditioner would not stay on it is a 20 year old Carrier 4 tons. The company ...
  A: Stan, There are different types of air conditioners, self contained, split system, If there is a ...
Duct work3/19/2009
  Q: I have a 20 year old 2 story home in Chicago area and we are replacing the original Furnace/AC/water ...
  A: Jim, Using the "cavities between the wall studs as the returns" is common practice in residential ...
Central Units3/18/2009
  Q: I have a older central unit it is a split unit. I'm going to replace it this spring. My question ...
  A: Joe, I don't know what your options are as fare as fuel goes? I can tell you where I live it costs ...
How many zones do I need3/18/2009
  Q: . How many zones of heating do you recomend for about 5,000 SF house. It has 5 bedroom all on ...
  A: Roman, It's all subject to what your options are as far as space and placement etc. You only need ...
Central AC Thermostat3/17/2009
  Q: I have a Whirlpool package central air unit, possibly 15 to 30 years old. All model #'s are faded ...
  A: Wayne, If you connect the wire from the R connection and the wire from the Y connection together the ...
Central AC Thermostat3/17/2009
  Q: I have a Whirlpool package central air unit, possibly 15 to 30 years old. All model #'s are faded ...
  A: Wayne, "Package central air unit" really doesn't tell me what all the thermostat is controlling, if ...
Increasing Efficiency in an Old Home3/16/2009
  Q: I have an older home, build at the end of the 1800s. When I bought the home, it had forced air heat ...
  A: Dana, I don't have any idea how many square feet of living area your house has? I don't know any of ...
BLOWER ACTING CRAZY3/16/2009
  Q: MY BUDDY HAS A RHEEM FROM 1985 100000 BTU FURNACE WHEN HIS FLAME HEATS AND THE BLOWER KICKS ON IT ...
  A: Rick, I think the blower motor is over heating and shutting of on a thermal overload, The blower ...
Voltage to gas valve on rheem furnace3/15/2009
  Q: I have a rheem criterion furnace RGDG-10EBJR. It won't ignite burners or will only for a second then ...
  A: Greg, The flame sensor element senses the heat, the heat generates millivolts which opens the gas ...
my blower makes a noise3/15/2009
  Q: on my outside unit aboutt 2 months ago it stop blowing threw the vents..my uncle how has a bit of ...
  A: Chris, OK, Forget about your statement, Quote " on my outside unit about 2 months ago it stop ...
airconditioner leaking water onto roof/ evaporative/ ducted-brand is Jarrahdale3/15/2009
  Q: I have a ' Jarrahdale' ducted airconditioner. Main box mounted on roof & 7 ducts throughout house. ...
  A: c, No wonder you dinged me for "celerity" on the rating! I completely missed the part about it being ...
airconditioner leaking water onto roof/ evaporative/ ducted-brand is Jarrahdale3/15/2009
  Q: I have a ' Jarrahdale' ducted airconditioner. Main box mounted on roof & 7 ducts throughout house. ...
  A: "c" The cooling coil in the unit has a condensate drip pan under the cooling coil, the drip pan has ...
Voltage to gas valve on rheem furnace3/14/2009
  Q: I have a rheem criterion furnace RGDG-10EBJR. It won't ignite burners or will only for a second then ...
  A: Greg, I don't keep a library for referencing all the hundreds of funaces makes and models, I can't ...
my blower makes a noise3/14/2009
  Q: on my outside unit aboutt 2 months ago it stop blowing threw the vents..my uncle how has a bit of ...
  A: Chris, Your question is a bit confusing? The outside unit doesn't ever blow air through the vent's. ...
Gibson electric furnace3/14/2009
  Q: I just moved into my new house in January of 2009. My contractor installed a 5 ton Gibson electric ...
  A: Chris, If your heating with electricity it really doesn't matter what brand electric unit your ...
central heating unit3/13/2009
  Q: in my house i have a pretty old gas heating unit the problem is there is no heat the pilot light is ...
  A: Bill, The valve that hooks into the gas line isn't getting any 24 volt power to it, or the valve is ...
HVAC purchase3/13/2009
  Q: y local HVAC company is offering a free Lennox furnace (with $885 for installation0 if I buy a ...
  A: Barbara, Payne, Bryent, Carrier are the same unit just diffrent names and prices. In my opinion all ...
Range Hood3/13/2009
  Q: We're doing a kitchen remodel (12'x24' space). Am trying to figure out how big the fan in the range ...
  A: Lora, It's been years since I figured a range hood, about twenty or more. You gave the width of the ...
HVAC purchase3/12/2009
  Q: y local HVAC company is offering a free Lennox furnace (with $885 for installation0 if I buy a ...
  A: Barbara, I think your not going to get any money savings deal plus you most likely already have an ...
furnace filter wrong placed?3/12/2009
  Q: I had my furnace replaced a few months ago and I went to change the filter for the first time. I ...
  A: Dani, The arrows should point in the same direction that the air flows. The installers most likely ...
water heater relief valve drain3/12/2009
  Q: Our water heater is in a basement, located in an unfinished space surrounded by finished rooms. The ...
  A: Richard, The purpose of a "Pressure Relief Valve" is to relive the pressure on some type of unit ...
Expansion Tank3/11/2009
  Q: Water leaking from overpressure valve. No pressure on expansion tank but a few drops of water did ...
  A: George, If you start out with about 10 psi cold water and the fill valve closes 100% the pressure ...
Rooftop air conditioner3/11/2009
  Q: My entire air conditioner is mounted on my roof (not just the condenser). evaporator, ductwork, etc ...
  A: Mark, Packaged heating and cooling units are made for outside installation, There are thousands of ...
water heater relief valve drain3/11/2009
  Q: Our water heater is in a basement, located in an unfinished space surrounded by finished rooms. The ...
  A: Richard, First you wouldn't drain the water heater through the PRV (Pressure Relief Valve), Actually ...
A/C coil repair3/11/2009
  Q: I just had an A/C guy out that told me my coil was leaking and said it was repairable. He did say ...
  A: Wayne, Of course your coil is repairable. I have no idea how cost effective it would be to repair ...
HEATING3/10/2009
  Q: I bought this model home in April 08. The home itself is about four years old. It has a LUXAIRE ...
  A: Chris, First, I don't have literature for researching the hundreds of different makes models and ...
replace Trane AC coil3/10/2009
  Q: Service tech found Freon leak, traced to AC coil on Trane horizontal unit in 3rd floor attic, easy ...
  A: Rick, I doubt if there is any warranty on the cooling coil, even if the manufacture covered the coil ...
furnace fire3/9/2009
  Q: We have a Carrier furnace that I believe was installed in 1998.It is forced air with propane. The ...
  A: Kelly, I suppose you could call the EPA in your area and ask what the regulations are in your area ...
furnace fire3/9/2009
  Q: We have a Carrier furnace that I believe was installed in 1998.It is forced air with propane. The ...
  A: Kelly, I say that the furnace repair person did something to the furnace to scare the living ...
Heat exchanger3/8/2009
  Q: I have a Rheem ugph furance and the heat exchanger tubes are loose. The tech tells me this HAS to be ...
  A: Greg, Since I don't know anything about your furnace such as how old it is? The only clue I got was ...
thermostat hook up3/8/2009
  Q: I have a Payne heat pump (i believe single stage) & A/C and am trying to hook up a new digital ...
  A: Daniel, It sounds like everything should connect to the new one as it did to the old one with the ...
Carrier Error Code3/8/2009
  Q: I do not know what model Carrier I have, but i came home the other day and the thermostat read low ...
  A: Robert, Check and make sure that you have 24 volt power going to the thermostat, The wire going to ...
AC condenser pan in attic leaking3/8/2009
  Q: My Trane ac Condenser unit drip pan in the attic is leaking( the pan that is connected to the ...
  A: Danny, If you have a "split system" which in your case would be two units, one outside which is the ...
Heat exchanger3/7/2009
  Q: I have a Rheem ugph furance and the heat exchanger tubes are loose. The tech tells me this HAS to be ...
  A: Greg, I don't have liturature on all the furnaces on the market and all the hundreds of models. What ...
seer ratings3/7/2009
  Q: is the seer rating for a/c s a definitve way to judge the operation of the condenser. also, can one ...
  A: Wally, SEER rating for an AC unit is just like gas mileage for a car, It's how much electricity the ...
furnace clearance question3/6/2009
  Q: Jim, I appreciate your help. I am in the midst of finishing my basement. I have a forced air gas ...
  A: Rick, The Clearance is 36" on the service side, if you have an up-flow furnace with the burner and ...
Mini split A?C unit kick breaker3/6/2009
  Q: I have a 23 years Innovair mini split unit that had been working ok until last night. When we turn ...
  A: Gwendolyn, Since I don't know what your capabilitys are I can't make recomendations on how to handel ...
floor vents3/6/2009
  Q: I am considering purchasing an entertainment center. It is wide enough to partially block two a/c ...
  A: Mike, If the 3-4 inches under the entertainment center is open around the perimeter the same amount ...
lennox funace problem3/5/2009
  Q: loud noise coming from furnace when it kicks on. Went down to see what it is. Seems to be coming ...
  A: Carla, Your question is a bit confusing? The way it works is when the furnace is idol and the ...
Strips aren't coming on for auxiliary heat3/5/2009
  Q: I'm working on my father-in-law's heat pump. He's got a 2 1/2 ton carrier outdoor unit which was ...
  A: Josh, If you set the thermostat at say 70 for heat and the thermostat calls for heat the heat pump ...
No power to Stat, no response anywhere3/4/2009
  Q: Jim, Recently I installed a new digital thermostat, to replace an old baystat240. The AC worked fine ...
  A: Shawn, You asked about a 240 volt transformer in the attic so I assume your unit is in the attic? ...
How to check connections3/3/2009
  Q: I have a RHEEM heat pump split unit. At outside unit there is no model identification; in the inside ...
  A: Enrique, I don't know exactly what your looking for? Your inside unit should have a wiring diagram ...
AC Return Air Vent Size3/3/2009
  Q: My condo in has 2 each 6 tom air handlers in a utility room. The space between the floors is a ...
  A: Chris, With a 5 ton unit you need a minimum of 250 sq. in. of free area. If you have an opening in ...
AC humidity3/3/2009
  Q: my brother has been living at my mom's old house in Gulf coast area for three years. He doesn't run ...
  A: FRances, I'm not an expert on "mold" but I do know that if something is kept moist and never dry's ...
AC Return Air Vent Size3/2/2009
  Q: My condo in has 2 each 6 tom air handlers in a utility room. The space between the floors is a ...
  A: Chris, You wrote "My condo in has 2 each 6 tom air handlers", did you mean your condo has 2 each 3 ...
disconnect and remove propane pipes3/2/2009
  Q: My home has two very old propane stand up wall units once used for heat. I live out of town and ...
  A: Jerry, If the gas is shut off at the tank you can disconnect the lines at the heater. you can remove ...
Heating Options3/2/2009
  Q: I'm considering purchasing a home in Colfax Township MI, it's a spooky old hotel with 12 bedrooms ...
  A: April, Your best bet would be a gas fired hot water boiler in a utility space some where in the ...
gas hot water heater3/2/2009
  Q: My whirlpool gas hot water heater makes banging/knocking noices at times. It doesn't do it all the ...
  A: Susan, The problem could be air, water pipes need better hangers, plumbed wrong? Susan, I gave you ...
Clicking Sounds3/1/2009
  Q: I have a Janitrol Air Conditioning and Heating Unit, This morning I was woke up by a strange ...
  A: Nelson, I don't know what a "Gas belt" is? I woulden't know a "wheal call" if I heard one? Do you ...
Rheem heat pump - AC but no heat3/1/2009
  Q: My a/c runs fine but when calling for heat, the indoor air handler starts fine but the outdoor ...
  A: Paul, I don't know what "CT" is? Check your thermostat for 24 volts (the R post). When you switch to ...
home gas furnace Bryant model 373 lav Downflow2/20/2009
  Q: Furnace will not come on. This is a reoccurring problem. There are 6 burner tubes coming off the gas ...
  A: Mike, I think you have taken care of the problem. Once the gas valve has opened there is just a ...
Line voltage and millivolt thermostat compatibility2/20/2009
  Q: I removed an electric baseboard heater (240v) recently and put a gas console heater in its place ...
  A: Steve, You need a millivolt thermostat to operate a millivolt system. I don't know your heater but ...
my hearter wont stay on or heat my home2/19/2009
  Q: When i turn the thermostat to heat/auto the furnace tries to kick in for a couple minutes then shuts ...
  A: Jacqueline, I answered this question before for a different named person. You all need to read the ...
Heat Pump noises2/19/2009
  Q: I have a one year old 2.5 ton compressor with a 3 ton air handler for my heating and a/c in my ...
  A: Tim, I'm not sure what exactly your talking about " longer condensate line create a louder ...
Heater wont light2/18/2009
  Q: I have an attic mounted furnace. It blows cold air only after thermostat has been turned to heat for ...
  A: Rick, First: There are a lot of different type furnaces that use different types of controls to ...
Heater wont light2/18/2009
  Q: I have an attic mounted furnace. It blows cold air only after thermostat has been turned to heat for ...
  A: Rick, If nothing happens, no induced draft flue blower running then you need to check the control ...
No heat coming from vents2/18/2009
  Q: When the thermostat hits my set temp and the HEAT kicks on, the air coming from the vents is the ...
  A: Brian, If you have a heat pump system, the outside unit is the heat pump, the inside unit is the air ...
Carrier, High Efficiency, Water Drip Main Duct2/18/2009
  Q: Carrier Weathermaker 9200 58MXA, High efficiency furnace (1995 basement installation. Should note: ...
  A: Maureen, I don't have a manual on your furnace but there are specifications on the parameters of how ...
furnace2/18/2009
  Q: When i turn the thermostat to heat/auto the furnace tries to kick in for a couple mintues then shuts ...
  A: Romam, I think I just sent you an answer. You need to be more specific about what the furnace dose ...
Air Duct Replacement2/17/2009
  Q: We have a need to replace our kludged together Heating and Air Conditioning system. We have been ...
  A: Bill, If "The air conditioner cools the house fine" then it must be sized right. If "The air ...
Air Duct Replacement2/17/2009
  Q: We have a need to replace our kludged together Heating and Air Conditioning system. We have been ...
  A: Bill, FirstWhy do you need to or want to replace the heating and cooling? Second: What is the square ...
home gas furnace Bryant model 373 lav Downflow2/17/2009
  Q: Furnace will not come on. This is a reoccurring problem. There are 6 burner tubes coming off the gas ...
  A: Mike, Check that little gas spreader thing that goes across the front of the burners to distribute ...
Hi pressure reading (30psi) in boiler gauge.2/17/2009
  Q: I have an old Weil-McLain natural gas hot water boiler for the second floor apartment. It's probably ...
  A: Norvin, Your not likely to get the air that's in the system out by bleeding the little air bleeders. ...
morning hot water problem2/17/2009
  Q: In order to get hot water for a shower in the morning, I have to run the dishwasher before I wake ...
  A: Adela, No problem, I know what a mixing valve is, I just don't know of any requirement by the ...
Banging Forced Air Heating2/17/2009
  Q: I recently changed the air filter in the main vent and now when the heat cycles off, the system ...
  A: Julianne, Every home doesn't have an air filter and a duct system or a unit like your's, I use the ...
Central air works but heating doesn't2/16/2009
  Q: My central air unit works on cool but the heat doesn't. Someone told us it could be the automatic ...
  A: Sigrid, I still need information. Example: I have a gas fired forced air furnace in my basement. ...
Central air works but heating doesn't2/16/2009
  Q: My central air unit works on cool but the heat doesn't. Someone told us it could be the automatic ...
  A: Sigrid, Your air conditioning unit and your heating unit are two separate things. They do combine to ...
morning hot water problem2/16/2009
  Q: In order to get hot water for a shower in the morning, I have to run the dishwasher before I wake ...
  A: Adela, I'm not a plumber! I don't know anything about a required mixing valve? Who is requiring it ...
Water Heater2/16/2009
  Q: How can you tell if one of the elements in an electric water heater has burnt out?
  A: Diane, Test the electrical element with an eclectic tester, if the element is getting power and it ...
Smoke from boiler2/16/2009
  Q: Just came back from work and found out smoke is coming out from boiler, what can I do tonight to ...
  A: Sena, If it's a dangerous scary situation call the fire department/911. If you think it's not a ...
Replacement Air or Makeup Air2/15/2009
  Q: Since putting new windows in my house, the house is so insulated that I have a negative air flow ...
  A: WR, Your question leaves a lot of desirable information missing, like what type furnace you have, ...
wrong with my A/C2/14/2009
  Q: I turned on my heat on. Then an hour or 2 my girl turn the A/C on cause i turn the heat on she turn ...
  A: Sounds like the fan center on your air handler, loose wire, connection or a faulty fan center, needs ...
wrong with my A/C2/14/2009
  Q: I turned on my heat on. Then an hour or 2 my girl turn the A/C on cause i turn the heat on she turn ...
  A: Nguyen. OK Phillip, Your making me wonder if your one of my "practical joker friends" trying to have ...
Air conditioning noise in a recording studio2/14/2009
  Q: We are planning to convert a classroom in our church to a recording studio. The problem is that one ...
  A: Philip, I have no knowledge of "Henderson Nevada"? I don't know what your options are or your ...
wrong with my A/C2/14/2009
  Q: I turned on my heat on. Then an hour or 2 my girl turn the A/C on cause i turn the heat on she turn ...
  A: Nguyen, I have asked a couple of times what your your "A/C" is? but I haven't gotten an answer for ...
Air conditioning noise in a recording studio2/13/2009
  Q: We are planning to convert a classroom in our church to a recording studio. The problem is that one ...
  A: Philip, I suppose there are people, companies, engineers that are qualified specialists in sound ...
water heating system2/13/2009
  Q: I have a boiler/ radiator heating system in an old home and today, about six hours ago, I had 2 ...
  A: Mike, The description you gave "a sudden brief burst of water from a pipe stem with a small valve in ...
Problem with my AC2/12/2009
  Q: I turned on my heat on. Then an hour or 2 my girl turn the A/C on cause i turn the heat on she turn ...
  A: Phillip, Thermostats very in price. You can get a thermostat for around $25 at Lowes or Home Depot ...
Wall Heater2/12/2009
  Q: I believe this heater is an original from when the house was built in 1950. Thanks Gayle
  A: Gayle, There are different types of wall heaters from fifty or sixty years ago. It could have been ...
white powder2/11/2009
  Q: my furnance is 2yrs old. i have white powder coming in from my vents,no one can find me any answers ...
  A: Glenda, I just don't know anything about your system? Duct work under the house could mean a lot of ...
white powder2/11/2009
  Q: my furnance is 2yrs old. i have white powder coming in from my vents,no one can find me any answers ...
  A: Glenda, I can't tell you how harmful it might be if at all? I don't know what it is for sure? Did it ...
gas central heating2/11/2009
  Q: the pressure on the boiler keeps dropping until the boiler cuts off, so the heating cuts off. its ...
  A: Jan, I don't know how your boiler is installed? Different installers do different things. Different ...
white powder2/11/2009
  Q: my furnance is 2yrs old. i have white powder coming in from my vents,no one can find me any answers
  A: Glenda, There is a multitude of different types of materials used for making duct work that conveys ...
Rheem Furnace2/10/2009
  Q: I have a Rheem furnace and I changed the filter. I guess I didin't put the panel on secure and when ...
  A: Thea, If the pilot light is on and the blower works then your getting power and gas to the furnace. ...
Outdoor Thermostats and Heat Pumps2/10/2009
  Q: We recently had one of our heat pumps replaced with a Payne PH113NR unit. They also replaced the ...
  A: Jeff, When the thermostat calls for heat the heat pump turns on in an attempt to satisfy the ...
Furnace blower kicking on/off2/9/2009
  Q: Jim, First, thanks for taking my question. We have a Trane XR80 (4 years old) The blower motor kicks ...
  A: Greg, In the furnace burner compartment, Your left side facing the burners, Opposite side of the ...
Furnace blower kicking on/off2/9/2009
  Q: Jim, First, thanks for taking my question. We have a Trane XR80 (4 years old) The blower motor kicks ...
  A: Jim, You need to look and see what's happening in the furnace. First the induced vent draft fan ...
American Standard Gas Pack Heater loud thump2/9/2009
  Q: Jim, We've got two American Standard AC / Gas Pack Units on our roof — One 3 ton and one 3.5 ton. ...
  A: Steve, I think you need to go to the unit on the roof and locate where the sound is coming from ...
A/C system ducts filling with water2/9/2009
  Q: I live in the Northeast and have an A/C system separate from my baseboard heat, so the A/C system in ...
  A: Joe Moisture inside your ducts, if it's not coming from an outside source like a leaking plumbing ...
Heat Pump2/9/2009
  Q: I have the same heatpump problem recently. It buzzes (for lack of a better word) at night, the ...
  A: Donna, If you have the right tool for prying up one corner at a time it's not a problem, It really ...
duct work2/8/2009
  Q: im trying to find out what the most efficent and best way to install duct work in my home for heat ...
  A: Ron, The best place for supply registers when your unit is heating is at the floor level, in the ...
Heat Pump2/8/2009
  Q: I have the same heatpump problem recently. It buzzes (for lack of a better word) at night, the ...
  A: DK, Did you get a chance to read my last answer? Did you get a chance to log onto the web site I ...
Cigarette Smoke From My Neighbors?2/8/2009
  Q: I am periodically (several times throughout the day, but not constantly) smelling cigarette smoke in ...
  A: Dana, There are hundreds of different types of heating and air conditioning units in the world and ...
Goodman gas starting in wrong order2/8/2009
  Q: We have a Goodman HVAC system with Heat-pump and gas option depending on the outside temperature. ...
  A: Scott, It sounds like the wiring for the low voltage 24 volt circuit is not connected properly or a ...
Forced air gas heater2/7/2009
  Q: Goodman GMP075-3 works great. Started making some banging noise close to the end of the heat cycle. ...
  A: Sam, It's hard telling from where I'm sitting? One persons "bang" could be another person "tap". If ...
ac air return2/7/2009
  Q: I live in the Northeast. My AC is in the attic, (heat is baseboard so no connection)Home is 5 years ...
  A: Frank, Everything in the attic, supply duct's, return duct's needs to be insulated from the cold in ...
Humidifiers2/7/2009
  Q: Our furnace is being replaced and the price they shot us on an Aprilaire is $375. The price is right ...
  A: Robin, There are several different types and models of "Aprilaire Humidifiers". I don't know which ...
Heat Pump2/7/2009
  Q: I have the same heatpump problem recently. It buzzes (for lack of a better word) at night, the ...
  A: Donna, Your question is confusing? What type of "heat pump" do you have? Is it a split system or a ...
water heater vent2/6/2009
  Q: I had a new furnace put in a year ago and now I need to have some worked done to my hot water heater ...
  A: Tom, Your question is confusing? If the furnace vents separately out the side of the house then it's ...
Troubleshooting an Open High Limit error2/5/2009
  Q: My sister's furnace (American Standard, I believe the model number is CUB140A960C4) hasn't been ...
  A: Chip, I agree it's not a flame sensor, Like I said if the burner only stays on 5 seconds or less ...
ac2/5/2009
  Q: I turn on the ac the fan motor out side will not come on. the ac and heat work fine ANSWER: Randy, ...
  A: Randy, If the motor doesn't do anything when the unit first gets power, no twitch, no hum then check ...
Troubleshooting an Open High Limit error2/5/2009
  Q: My sister's furnace (American Standard, I believe the model number is CUB140A960C4) hasn't been ...
  A: Chip, It sounds like the furnace has a corroded flame sensor? An important factor in diagnosing ...
Goodman Ignition does not light.2/4/2009
  Q: Goodman ignition does not light. Tried lighting up a lighter when the Gas "hissed" and it worked. ...
  A: Burt, When the thermostat calls for heat the first thing that happens is the vent draft inducer ...
Armstrong ULTRA V Enhanced 802/4/2009
  Q: Jim, Woke up this morning to the furnace running, but no heat. Cycled the system and the exhaust ...
  A: Wes, Could be the circuit board, could be the thermostat, could be the exhaust blower motor, could ...
NEW SPLIT AC SYSTEM2/4/2009
  Q: I am replacing a 23 year old AC split system in a third floor condo unit in a five story building in ...
  A: Nancy, I think heating and air conditioning equipment for residential applications are all pretty ...
wall furnace2/4/2009
  Q: Jim I have a wall furnace I'm Installing in my barn. What should the height of the chimney be above ...
  A: Tom, Whatever the vent Collier connection on the wall heater is determines the vent size, all wall ...
Payne Furnace Model # PG8UAA2/3/2009
  Q: My furnace will periodically (2 – 3 times per week), not start up when called. If I turn off the ...
  A: Aimee, I don't understand the code "blower on after power up (112 VAC or 24 VAC)? The code may mean ...
not heating properly2/3/2009
  Q: I have a gas furnace Goodman gmp 075-4,is not heating properly, i meant,is not reaching the temp on ...
  A: Giancarlo, When the furnace doesn't function properly it shuts down. When the furnace shuts down the ...
Goodman 80% efficiency Furnace2/3/2009
  Q: My parents have had a Goodman furnace installed about 1 year and a half ago. It seems that ...
  A: Pam, " everytime the temperature outside goes below 5 degrees,the furnace goes on and off,about ...
Heat pump & Air Handler2/2/2009
  Q: In 2005 we contracted with a company to replace our York outdoor & inside unit, with the exception ...
  A: Carol, A heat pump is an air condition condensing unit that has the ability to reverse the systems ...
Heat pump & Air Handler2/2/2009
  Q: In 2005 we contracted with a company to replace our York outdoor & inside unit, with the exception ...
  A: Carol, First let me say I don't know what the "big water tank in the basement" is maybe the hot ...
Efficiency ratings, old weil-mclain equipment2/1/2009
  Q: We have an older W-M HE II gas boiler, and I have been trying to find an AFUE efficiency rating. ...
  A: Larry, I think your correct on the efficiency rating. I don't know what else your system consists ...
Air/Heater motor in crawlspace replacement2/1/2009
  Q: Our house was built in the early 60's and has a gas heater and fan directly under the center of the ...
  A: Brent, I know exactly what your set up is, I don't know where you live but I've installed a thousand ...
philco furnace problem2/1/2009
  Q: i have a philco furnace g6ra-096c-16b the thermostat is set at seventy three temp freq falls below ...
  A: freddy, When the thermostat calls for heat the fan control is energized but it's a timed delay ...
a.c. system1/31/2009
  Q: I recently called in an a.c. specialist to replace a filter. He had no filter but told me I needed ...
  A: Janet, Your house With everything "average" such as windows, insulation, exposer to heat, etc needs ...
a.c. system1/31/2009
  Q: I recently called in an a.c. specialist to replace a filter. He had no filter but told me I needed ...
  A: Janet, Nothing against you but I think the "a.c. specialist" you called sized you up as an easy ...
home furnace1/31/2009
  Q: my furnace runs through its normal cycle and immediately starts into another cycle. this may happen ...
  A: Scott, The furnace shouldn't end the cycle unless the thermostat is satisfied. The furnace shouldn't ...
carrier gas furnace Heating not respondind1/31/2009
  Q: I have carrier gas furnace. Just five year old.There is no heating.I changed the filter witch one ...
  A: Jeff, You need to observe the control compartment/burner compartment of the furnace, turn the power ...
Goodman Oil Furnace1/31/2009
  Q: My parents are older (80's +) and just had thier furnace maintenanced. The technician told them ...
  A: Lowell, On my ask a question page it say's I don't do oil equipment. The reason being that oil ...
anama heating and air1/30/2009
  Q: can you give me any info about a amana forced air furnace and central air system?
  A: Juan, I'm not sure what type of information your looking for? Amana Heating and Cooling equipment in ...
Thermostat1/30/2009
  Q: We have been without electricity for four days it came on around one hour ago and within a few ...
  A: Robert, I don't know "DICO" thermostat. To answer your question "malfun" means "malfunction" which ...
Central Heating Unit Not Working Properly1/30/2009
  Q: We have an OLD Payne Central Heating - a/c Unit, the a/c compressor went out a couple years ago - ...
  A: Jim, It sounds like the furnace blower motor is running under some stress that causes it to over ...
Return Air1/29/2009
  Q: My wife wanted a door on our laundry room so I installed one only to find that now when the heater ...
  A: Frank, With the added information my first answer is null and void, lets start over. If your ...
thermostat fluxuations1/29/2009
  Q: I have a furnace, that is aprox. 6 yrs. old. Right after we moved in, I replaced the older ...
  A: Dave, You may have a faulty thermostat? There are hundreds of thermostats on the market, I don't ...
keeprite 7500 btu1/29/2009
  Q: hi replaced furnace cant find where to connect low volt wire to terminal board
  A: Jimmy, The low voltage circuit runs through the furnace controls. The furnace comes from the factory ...
Return Air1/29/2009
  Q: My wife wanted a door on our laundry room so I installed one only to find that now when the heater ...
  A: Frank, You didn't specify but are you calling a gas fired forced air furnace "heater"? I assume your ...
thermostat fluxuations1/29/2009
  Q: I have a furnace, that is aprox. 6 yrs. old. Right after we moved in, I replaced the older ...
  A: Dave the thermometer that you read and the thermostat that turns the furnace on and off are really ...
heat pump not heating1/28/2009
  Q: I have a Bryant heat pump. It´s a 15 years old unit. It runs but the house does not get warm. I set ...
  A: Jorge, Are you saying that when you set the thermostat on 75 the air handler portion blower runs and ...
Lennox 5 Ton Electric Heat Pump1/28/2009
  Q: I have a 5 year old Lennox electric 5 ton heat pump and the compressor failed in December 08. The ...
  A: Shirley, I don't know the time limits involved on your compressor or other parts, Most of all what ...
Lennox G20 recycles frequently1/28/2009
  Q: I live near Chicago in a 15 yr old split level frame house with the original furnace, a Lennox G20. ...
  A: Joe, If the thermostat calls for heat the furnace runs, When the thermostat is satisfied the heat ...
heating and aid unit broken.....1/28/2009
  Q: I had a guy come out to my house to fix my unit, and he said it need some freeon added to it. It ...
  A: Jessica, I think you have a "heat pump" system? When the thermostat calls for heat the unit under ...
furnace blowing cold air in the heat cycle1/27/2009
  Q: i have a 12 year old 80% york furnace that every few days will blow cold air during the heat cycle ...
  A: Chris, When your furnace is in the heat cycle the blower is controlled by a fan control that turns ...
heat pump not heating1/27/2009
  Q: I have a Bryant heat pump. It´s a 15 years old unit. It runs but the house does not get warm. I set ...
  A: Jorge, Whatever your heating system is it needs to be sized to produce the amount of heat BTU's that ...
Rheem vs Trane and Carrier1/27/2009
  Q: We live in the suburb of NYC and are in the market for a new central air unit. We live in a ranch ...
  A: Surije, I assume your talking cooling only from your question. I think all units that have the same ...
attic vent question1/26/2009
  Q: Jim, I have a 500 sq/ft walk-in attic above my kitchen. Currently, the attic has a ridge vent and ...
  A: Christian, When I read your question I thought you were describing my house. I have 1920's house ...
Inducer motor1/26/2009
  Q: I have an 9 year old Linox Dimension furnace and the is making a squeaking/squealing noise for maybe ...
  A: Tom, No doubt you can change the motor if you have the ability and the tools. I don't know what your ...
Install of a new Thermostat1/25/2009
  Q: Jim, I currently have a Cheap Honeywell T841 A 1712 Thermostat to control a Carrier FB4ANF024 ...
  A: Nick, I can't see the thermostat diagrams or the thermostat, there have got to be hundreds of ...
hvac problems1/25/2009
  Q: i have a XL1200 heat pump outside and a goodman coil inside was originally a colman inside unit. ...
  A: Nellie, It sounds like your outside condensing unit has a control proublem that is causing the ...
Trane Heater1/24/2009
  Q: my house was built in 2005 I Have a Trane Heater XR90. Evertime it shuts off when the temperature ...
  A: Doug, Duct's usually have a cross break like a bog X across the wide side to keep the duct from ...
Help: $900 electric bill. Convert to LP? Hybrid Heat?1/24/2009
  Q: Jim: I need to make a big decision, and I need unbiased input. My situation is this: Moved into a ...
  A: Forrest, Heat pumps are just air conditioners that have controls that reverse the flow and warm the ...
No hot air from furnace1/24/2009
  Q: I have a Coleman Evcon gas furnace Model# BGU100GA and I have cold air coming out of the vents when ...
  A: Chip, Furnaces start and run in stages. Thermostat calls for heat. Induced vent blower starts. ...
heat pump wont shut off1/23/2009
  Q: Sometimes, our heatpump will kick on normally, then kicks the blower off but still keeps running, we ...
  A: Stacie, There are several fan's, motors, controls, components etc. with a heat pump system that ...
Furnace seems to turn off and on a lot, alternates hot and cool air1/23/2009
  Q: Please forgive my ignorance--we have a trane 80% efficiency furnace and it seems to turn off and on ...
  A: Vicky, When your thermostat calls for heat the burner lights and a short time later the main blower ...
heater fan1/22/2009
  Q: When I have my furnace set on heat and "Auto" , the furnace ignites when it it the selected ...
  A: WM, The "flame sensor" has nothing to do with the fan/blower turning on. The "flame sensor" dose ...
heat pump turn off blower still runs1/22/2009
  Q: We bought a used mobile home with Coleman-Evcon Central A/C & Heat unit. There are two thermostats ...
  A: Cindy, I don't know if the extra thermostat is part of anything or just something some body left ...
heater fan1/22/2009
  Q: When I have my furnace set on heat and "Auto" , the furnace ignites when it it the selected ...
  A: wm, When the thermostat is in the heating mode and the fan switch is set to "Auto" the thermostat ...
boiler1/22/2009
  Q: I have a hot water boiler in a boiler room of my office building Slab foundation. The pipes from the ...
  A: Gary, To purge the air out of the cold zone you need to force water in one end of the zone and out ...
Central Heat/Air1/21/2009
  Q: I live in a condo that has a central heat/air combo unit that went out for good I think. Where can ...
  A: Kim, "Central heat/air combo unit" covers a lot of territory. I don't know exactly what you have? A ...
Heating and Air unit1/20/2009
  Q: I have an electric heating and air combo. I don't have any problem with it cooling in the summer, ...
  A: Paula, When a heat pump thermostat calls for heat the the outside condensing unit goes into a ...
11 yo Payne ignition lighted gas furnace: won't turn on1/20/2009
  Q: Furnace does not turn on at all - as of today. I changed the filter. What can I check for before ...
  A: Irma, Take the thermostat wires off of the thermostat from the R and W posts and twist them together ...
11 yo Payne ignition lighted gas furnace: won't turn on1/20/2009
  Q: Furnace does not turn on at all - as of today. I changed the filter. What can I check for before ...
  A: Irma, Did the furnace work OK before you changed the filter? Did you take the cover/door off to the ...
HVAC air intake1/19/2009
  Q: The air intake for my trane xr90 takes air directly from my basement. When its running I can feel ...
  A: Robert, I don't have any idea from your questions where in the house your furnace is installed? In a ...
ceiling vent air direction1/18/2009
  Q: The two ceiling vents in my upstairs bedroom (a small room maybe 10x12) are on one side of the room ...
  A: Lisa, The "vents"/registers need to blow the air at the outside wall and also beginning at the ...
Rheem Quiet 80 direct spark system1/18/2009
  Q: I have a Rheem quiet 80 system that was installed les than 2 years ago. This winter we have had to ...
  A: Mark, I'm not "aware of this issue"? You might try positioning your igniter better so that the spark ...
duct length1/18/2009
  Q: I'm looking for another opinion. What is the longest duct length recommended for an 80% efficiency ...
  A: Cindy, Everybody's house is different, furnaces are different, duct systems are different. I have no ...
ceiling vent air direction1/18/2009
  Q: The two ceiling vents in my upstairs bedroom (a small room maybe 10x12) are on one side of the room ...
  A: Lisa, The air should blow at the outside wall so that it covers the entire wall, there needs to be a ...
large ceiling return vent needs to be closed in winter?1/18/2009
  Q: I have a central air system for cooling,not heating. There is a aprox. 2' by 2' return in the ...
  A: Art, The "return air vent" you describe sounds like a filter grill? Filter grills have a hinged face ...
Carrier furnace - repeated ignition lockout1/17/2009
  Q: Jim, We have a Carrier furnace, about 10-11 years old. This furnace does not have a pilot, but an ...
  A: Patty, The clue to if the flame sensor is the problem is that the vent blower comes on, the igniter ...
Carrier furnace - repeated ignition lockout1/17/2009
  Q: Jim, We have a Carrier furnace, about 10-11 years old. This furnace does not have a pilot, but an ...
  A: Patty, When the thermostat calls for heat the first thing that has to happen is that the induced ...
TRANE XR90 led blinking...1/17/2009
  Q: My Trane XR90 led is blinking 3 times. I can hear what I think is the blower turning on, but it ...
  A: Matthew, If your talking about a flashing LED in the control compartment of the furnace? there ...
Floor Furnace1/16/2009
  Q: I have an ancient "Electrogas" Floor Furnace, probably 75 years old, that works/heats fine for my ...
  A: Melva, Floor furnaces were pretty much outlawed throughout the country 40-50 years ago however you ...
York Furnace Timing.1/16/2009
  Q: I have a York P2MPD14N08001B furnace. About 15 yrs old. Noticed that when we call for heat: First, ...
  A: Vijay, It sound's like something is crossed up, maybe a faulty circuit board. The first thing that ...
honeywell thermostate settings1/16/2009
  Q: We purchased a Honeywell CT87K thermostat and need to know what the cycle rate settings should be. ...
  A: Bill, Set the cycle the same as the amp draw rated on the gas valve. If you can't find the amp draw ...
no Hot water1/15/2009
  Q: I am a dummies in this kind of thing. I even don't if the furnace is electric or gas. I guess it's ...
  A: Jean-Marc, A water heater is a water heater. A furnace is a furnace, they are separate things. In a ...
no Hot water1/15/2009
  Q: I am a dummies in this kind of thing. I even don't if the furnace is electric or gas. I guess it's ...
  A: Jean-Marc, I have no Idea what your water heater is, is it gas or is it electric, Do you even have a ...
Lennox Merit Series1/15/2009
  Q: Greetings, I have had a problem with the heating on the Lennox Merit unit. It worked early on then a ...
  A: Kate, After the neighbor did there thing did the furnace work OK and for how long? I'm not sure what ...
humidity1/15/2009
  Q: moving into a new modular home that has electric heat and no humidifier, using a borrower meter, I ...
  A: Mike, Different folks have different needs or requirements when it comes to humidity. Humidity is ...
Water heater1/15/2009
  Q: I live alone in a 3 br, 2 1/2 bath home, approx. nine years old. I bought it new. I use the master ...
  A: Dave, I'm sure if you get plenty hot water at the sink but not at the two showers it has something ...
Payne Furnace1/14/2009
  Q: I have a newer Payne furnace. I had to disconnect the thromostat and since re-connecting...the ...
  A: Michael, You stated "the furnace has two wires, a White and Black and hooked up as follows". Did you ...
Payne Furnace1/14/2009
  Q: I have a newer Payne furnace. I had to disconnect the thromostat and since re-connecting...the ...
  A: Michael, Turn the thermostat all the way down/off for 30 seconds or if that doesn't work turn the ...
Luxaire York furnance - open limit1/14/2009
  Q: Jim You have been very helpful in the past I hope you can help today. I have an older York or ...
  A: Steve, If the "small vent blower dose not come on first the igniter won't glow and the gas valve ...
Luxaire York furnance - open limit1/14/2009
  Q: Jim You have been very helpful in the past I hope you can help today. I have an older York or ...
  A: Steve, When the thermostat calls for heat, the thermostat closes the 24 volt circuit that sends ...
vents1/14/2009
  Q: I have a home built in 2000. The vents are in the ceiling and I have a heat pump. I have a hard time ...
  A: Melissa, The supply diffusers or registers which ever they are should be installed so that the air ...
wire a new transformer for my thermostat1/13/2009
  Q: I have a 1989 snyder-general gas forced air furnace. My problem is that the fan limit reaches 200 ...
  A: Pat, There are probably a hundred or so different types of limit switches from the 1980's. Some of ...
wire a new transformer for my thermostat1/13/2009
  Q: I have a 1989 snyder-general gas forced air furnace. My problem is that the fan limit reaches 200 ...
  A: Pat, I still don't know what type of furnace you have? Dose your furnace have a standing pilot or is ...
Heating1/13/2009
  Q: Any information you may have on this would be greatly appreciated!!!!!! We heat our split style ...
  A: Tiffany, I don't know how your boiler is piped, or what you have as far as zone controls, circulator ...
Lennox G21 Pulse Furnace1/13/2009
  Q: I have a heating cycle problem. The heating cycle starts just fine, purge, heater on, fan on after ...
  A: John, What you describe is that the furnace is over heating and shutting off on high limit, the ...
York Diamond 80 heat blower cycles 20 seconds1/13/2009
  Q: I have a 1996 York Diamond 80 gas furnace (in the basement). Everything starts up ok (thermostat ...
  A: Jim, You could have a bad motor that's heating up and shutting off on a thermal overload until it ...
Relocate air filtering system1/13/2009
  Q: Jim, This is a follow-on to our previous discussion. I apparently have had too many follow-ups so ...
  A: Bob, You can get a filter grill that holds a filter, type "return air filter grill" into your ...
wire a new transformer for my thermostat1/13/2009
  Q: I have a 1989 snyder-general gas forced air furnace. My problem is that the fan limit reaches 200 ...
  A: Pat, First I'm not familiar with what exactly type of furnace you have. Snyder furnaces in my area ...
Floor Furnance Problems1/12/2009
  Q: I have an old floor furnace, back in the early fifties. The old Honeywell Comfort thermostat is ...
  A: Bob, For some reason we never get the full story or history about a heating or cooling unit? I have ...
Floor Furnance Problems1/12/2009
  Q: I have an old floor furnace, back in the early fifties. The old Honeywell Comfort thermostat is ...
  A: Bob, I have no idea what the controls for your floor furnace are? There are a lot of different types ...
outside unit wiring for central a/c1/11/2009
  Q: i had searched and found where you answered a question about the outside unit not coming on and said ...
  A: Jimmy, At first when I read your question I assumed you were talking about the low voltage ...
Heater blowing cold air1/11/2009
  Q: the heater was working fine, then the next day turned it to 68 anad cool air was coming out. The ...
  A: Roz, How dose the cold air come out if the fan is not on? I have no idea what "heater" consists of? ...
outside unit wiring for central a/c1/11/2009
  Q: i had searched and found where you answered a question about the outside unit not coming on and said ...
  A: Jimmy, The way it works, the person who roughed in the low voltage for your AC unit before the unit ...
Drafts from Central Air Vents and Returns1/11/2009
  Q: Our home is a contemporary ranch-style home with a split heating/colling system (hot water baseboard ...
  A: Tony, About all I can offer is that all the supply ducts and diffusers and all of the return ducts ...
GMP100-3 Furnace1/10/2009
  Q: my question is that how I will go about to fix the following problem: 1. The thermostate is set to ...
  A: Tien, When you say "stops well before temperature is reached", What stop's? everything ...
Heating with gas and heat pump1/10/2009
  Q: I live in a two story 3000 square floor house in NC. The upstairs has a heat pump and the bottom ...
  A: Patricia. You need to get an old utility bill from the summer time when your not heating and see ...
Drafts from Central Air Vents and Returns1/10/2009
  Q: Our home is a contemporary ranch-style home with a split heating/colling system (hot water baseboard ...
  A: Tony, You didn't give any information about what the "air conditioning unit" is or where it is ...
Heating with gas and heat pump1/10/2009
  Q: I live in a two story 3000 square floor house in NC. The upstairs has a heat pump and the bottom ...
  A: Patricia, I don't know how your "bottom floor gas heat is installed but if there are return air ...
forced air furnace1/10/2009
  Q: ser.# 411d1.the unit was working fine until this morning, when it would not come on, no fan or ...
  A: Bill, I'm not sure what your hearing? Originally you said "grinding noise" It's difficult to ...
Main Blower on Heil DC 901/9/2009
  Q: I know almost nothing about a furnace but have figured out that my smart valve is on the way out - I ...
  A: Tom, I don't have a manual on your particular make and model furnace but when the thermostat calls ...
Main Blower on Heil DC 901/9/2009
  Q: I know almost nothing about a furnace but have figured out that my smart valve is on the way out - I ...
  A: Tom, The way it should work. The thermostat calls for heat. The induced vent draft blower starts. ...
Lennox G40UH(X) is not turning on1/9/2009
  Q: I have a Lennox G40UH(X)located in the attic. I have been consistently using my heater everyday and ...
  A: Hector, If absolutely nothing is happening, the furnace is dead then I would suspect it's not ...
package unit1/9/2009
  Q: indoor fan is on and off but the gas burners stay on. i installed new fan limit switch and the ...
  A: Elias, I don't know what your unit type is? age, controls, etc. The fan control whatever type it is ...
RTH221B Honeywell thermostat wiring1/9/2009
  Q: Have a programable thermostat RTH221B Honeywell. The wire used by the old homeowner coming out of ...
  A: Darren, The type of wire coming out of the wall that you describe is line voltage wire, Your not ...
forced air heater1/8/2009
  Q: I moved into a new office last year. The air conditioning works fine, but the heating is very ...
  A: Barry, There is nothing that runs by battery on the roof top unit. The thermostat may be timed by ...
Return air vent(s)1/7/2009
  Q: I have discovered in my house 2 return air vents that are not connected to any ductwork. My furnace ...
  A: Jackie, In a wide open basement the return air opening needs to be at least ten feet away from the ...
forced air heater1/7/2009
  Q: I moved into a new office last year. The air conditioning works fine, but the heating is very ...
  A: Barry, Take the thermostat wires loose from the R and W posts on the thermostat, Lightly touch the ...
replacing a thermostat1/7/2009
  Q: I am replacing a Mercury thermostat with a Bryant thermostat. This was previously used so has no ...
  A: Lisa, There are hundreds of thermostats, mercury, Bryant, and many, many other names. There are ...
furnace1/7/2009
  Q: its a comfortmaker high eff it lites buurner goes on for 5 seconds then shuts off after 3 cycles red ...
  A: Cludio, It sure sounds like the flame sensor? The flame burning onto the flame sensor element ...
Furnace with recurring problem1/4/2009
  Q: I have an Armstrong Ultra SX 80 Propane fired furnace in my home. The home and furnace are both 10 ...
  A: Gary, I don't have a manual on your induced draft blower for your furnace. The air that blows ...
Williams Wall heaters1/4/2009
  Q: I just replaced the wall heater in my daughters house. I installed a Williams Monterey wall heater ...
  A: Brad, Is it a 24 volt control system or a millivolt system? Brad, I'm sorry I cut you short! I ...
Bryant furnace problem1/3/2009
  Q: I have a Bryant propane or gas furnace aprox 15 years old or so... I am now smelling propane after ...
  A: Missy, Get a cup and mix 50-50 liquid detergent and water. Get a small 1" paint brush or something ...
Blower Time Delay1/2/2009
  Q: Is there any reason to have an extended delay, more than 15 seconds between burner ignition and air ...
  A: Paul, What's a "gui furnace"? Is gui a brand name on furnaces sold in the area where you live? There ...
Carrier 58GP100 - CA gas furnace problem1/2/2009
  Q: I have a 1988 Carrier central unit with a 100,000 BTU gas furnace. Model: 58GP100 – CA ...
  A: Mansukh, Your furnace has a fan control of some sort that starts and stops the blower, it sounds ...
how can I get a better distribution of heat upstairs?1/2/2009
  Q: I have a two zone forced hot water gas heating system in a 2000 sq ft home built in 1990. The second ...
  A: Bill, The hot water flowing through the baseboard heat is the same in every room upstairs that is on ...
furnace1/2/2009
  Q: when my furnace reaches temperature the blower clicks on ond off non-stop. If i change the temp it ...
  A: Kim, The furnace has a fan center, controller, when it's in the heating mode the fan center turns ...
Baseboard (water) heating noise1/1/2009
  Q: This issue seems to be opposite from all other posts I have read. I live on the top (4th) floor of a ...
  A: Denis, The front cover of the baseboard should come off, it just hooks on top of the hanger and ...
Tempstar DLX 90 Not working - blower?1/1/2009
  Q: We came home last night to a home that was 56 degrees. The furnace would kick on for about 15-20 ...
  A: jolee, It could be a lot of different things? Furnace have a cycle and a time for doing different ...
Heating costs VS Temp. Control1/1/2009
  Q: 1400 sq. ft. ranch,20 yrs. old, 7 and a half ft. celings, 6 inch walls & well insulated. Oil fired ...
  A: Jim. If it were me I would leave it set to my comfort leave, some like it cooler at night. Maybe ...
Air vents1/1/2009
  Q: I bought a 2 year old house last year. This is my first real winter experience in the house and I'm ...
  A: Michael, I have no idea how your heating system is installed, where the furnace, heat pump or ...
Heat Pump Breaker keep tripping1/1/2009
  Q: I have had an annoying problem begin to occur recently that only happens when it gets below 30. The ...
  A: John, Circuit breakers trip when they over heat. Your electric heating coils draw amp's when they ...
House heating system12/31/2008
  Q: The house is on a concrete slab and I have a gas forced air system with ducts in the floor. I had a ...
  A: Jack, The furnace get's it's air from inside the house, heats the air and blows it back out. If ...
pane furnace getting code 3112/31/2008
  Q: we keep getting code 31. we have reset it several times my husband cant find anything. it doesnt ...
  A: Heidi, There should be a legend stuck on the furnace in the control area that tells what the number ...
Can I change the location of return air filter?12/31/2008
  Q: Jim, I have a Lennox Conservator III forced air furnace/air conditioner, Model G16Q4X-75-3, serial ...
  A: Bob, Basically your return air duct is 24X14 the free air area is 24x14=336 sq, inches of free area. ...
Problems with heat pump/ thermostat?12/31/2008
  Q: Hoping you can help...I have an electric heat pump that has been giving me trouble lately. The ...
  A: Liz, Thermostats are just switches that turn on and off other switches that make components start, ...
furnace not heating12/30/2008
  Q: My furnace is running but not producing heat. The fan will run whether set to "on" or "off". Just ...
  A: Jim, I don't know what type of controls your furnace has? Most modern day furnaces have an induced ...
New Air conditioning system producing bad smell12/30/2008
  Q: We installed a new A/C compressor and air handler. Air handler is in attic. We put new duct board, ...
  A: Donna, There are several different types of duct boards, different manufactures, different types of ...
Payne Furnace12/30/2008
  Q: I have a Payne Furnace M# 395aawo24055. It is at least 20 years old. It has a spark ignition ...
  A: Craig, Check the furnace wiring diagram that should be stuck on the inside of the blower compartment ...
HVAC Humidifier issue12/30/2008
  Q: I have installed a honey well whole house humidifier on one of my units. Since then I feel that the ...
  A: Dave, I don't know your humidifier exactly? must be a dozen or so Honeywell humidifies? It sounds ...
Forced air heating12/30/2008
  Q: I have a coleman forced air heater,it quit working a while back. I replace the thermocuple and the ...
  A: John, Check your gas valve? If your sure that's what's making the noise. I can't imagine what the ...
Payne Furnace12/30/2008
  Q: I have a Payne Furnace M# 395aawo24055. It is at least 20 years old. It has a spark ignition ...
  A: Craig, The exhaust fan has to run for your furnace to work properly. I don't have a service manual ...
York Heating & Cooling System12/29/2008
  Q: I currently have a York model N2AHD14A06A located in our basement. The unit shuts off and you hear a ...
  A: Jeni, I don't have a manual for your furnace either nor do I have a library for referencing York ...
Rudd Silhouette II12/29/2008
  Q: The furnace (a Rudd Silhouette II) goes thru startup cycle, comes on normally, then the flame may go ...
  A: John, As you look into the burner space on your left side opposite side of the igniter there is a ...
Gas Fireplace problem12/29/2008
  Q: We are having a problem with our gas fireplace. The unit runs off a wall mounted thermostat and ...
  A: Brian, I don't know your fireplace unit? A burner burning natural gas with the proper air mixture ...
Return air12/29/2008
  Q: I have a newly constructed house with just hot water heating system and thru the wall air ...
  A: Ned, I think your only options are through the wall or through the window AC units, or a complete ...
AC blows hot air ?!?!?12/29/2008
  Q: We were recently away from our house for 6 weeks. So we turned the furnace off at the breaker ...
  A: Haven, I think what you have is a "Heat Pump" A heat pump is an air conditioner/condensing unit that ...
Return Air12/29/2008
  Q: I reciently visited my dads condo and did some work for him when I went to replace the return air ...
  A: Pamela, Return air doesn't need to always be ducted. Voids such as spaces above drop ceilings and ...
Rudd Furnace12/28/2008
  Q: due to warm weather, furnace hasn't been on for days. changed filter on it this morning, then ...
  A: Paul, Every furnace isn't installed exactly the same way or in the same place in a home which makes ...
AC Condensation12/28/2008
  Q: MY 40 year old Cape in NY has central AC and baseboard heat. This is the third winter I have lived ...
  A: Justin, I really can't follow your description of how the duct runs or what it is exactly? If the ...
AC blows hot air ?!?!?12/28/2008
  Q: We were recently away from our house for 6 weeks. So we turned the furnace off at the breaker ...
  A: Haven, I don't have a reference library for researching makes and model numbers on all of the ...
Payne gas furnace12/28/2008
  Q: I have a payne as furnace model #PG8DAA that was installed in a home eight years ago when my wife ...
  A: Bruce, You can reset the furnace by turning the power switch off or the thermostat off for a few ...
Smell from new HVAC unit12/27/2008
  Q: I had a new furnace and AC unit installed($10,000 worth)about 6 weeks ago. Initially, the plastic ...
  A: Michaela, Keep after the installing company, even if you have to sue. They'll tell you, you voided ...
Lennox furnace venting issue12/27/2008
  Q: I have a 1yr old lennox gas furnace 90+(g43) and the burners light when heat is called for then shut ...
  A: Jeff, Yes there are specific instructions for exhaust pipes, length, diameter, and bends. I don't ...
Trane Xl-8012/26/2008
  Q: I like to run my fan continuously so the air is constantly recirculated. The fan works fine when ...
  A: Neil, I don't have a manual that shows the "Trane Xl-80" fan center. When in the heating mode the ...
Furnace won't ignite - buzzing12/26/2008
  Q: Here's the story: Last night my heat was working. However, when we woke up, the heat was not ...
  A: Darwyn, Furnaces start and run in stages. There are different types of furnaces with different kinds ...
Trane Heatpump12/19/2008
  Q: I am wondering what the temperature should be coming from the vents and If i can check the pressures ...
  A: Brad, The temperature coming out depends on the temperature going in and what temperature the ...
Armstrong Air Blower motor12/19/2008
  Q: The ECM blower motor was just replaced, and the "cooler" side of the unit works fine, but the "heat" ...
  A: George, I don't know exactly what works and what doesn't? What I'm getting is that you have a heat ...
Carrier Furncace, nat, gas, downdraft12/19/2008
  Q: Furnace has 2000/2001 build date. Heat only. Unit doesn't operate properly & doesn't light. Induced ...
  A: Tony, In the heating mode, when the thermostat calls for heat it "initiates" the fan center, the ...
Blower Delay12/19/2008
  Q: I just noticed that my GMH95's heating starting cycle is wrong. The circulator blower is supposed to ...
  A: Max, When the thermostat calls for heat 24 volts is sent from the thermostat to the fan center, the ...
Coleman Floor Furnace12/18/2008
  Q: We ordinarily heat with wood, so the furnace is just used at night, or while we are not home. It ...
  A: Gregg, Is your floor furnace AC electric or millivolt? Gregg, Floor furnaces are usually most ...
Outside Unit Shuts Off12/18/2008
  Q: We have a Lennox system that is 5yrs old. The system stopped cooling. After investigating I ...
  A: Jason, Are you saying that it's a heat pump? Are you saying in the cooling mode the unit outside ...
Carrier Furncace, nat, gas, downdraft12/18/2008
  Q: Furnace has 2000/2001 build date. Heat only. Unit doesn't operate properly & doesn't light. Induced ...
  A: Tony, I don't have a service manual on your furnace. All circuit boards, error codes etc. are not ...
floor register additions12/18/2008
  Q: how many additional floor registers can I add to my existing single pipe hot water system? I have a ...
  A: Bob, With hot water heat you can add as much baseboard radiation to a single loop as you want. The ...
boiler heat12/18/2008
  Q: I recently moved into a different home that has boiler baseboard heat. Our area doesn't have natural ...
  A: Steve, I have hot water baseboard heat,it avereages about $250 a month for the natural gas for the ...
Blower Motor12/17/2008
  Q: Had a flood in my basement, dont think that the blower motor was submerged but it has been effected. ...
  A: Gary, The motor is held in place with a motor mount. The squirrel cage is held onto the motor shaft ...
Lennox furnace won't start12/17/2008
  Q: Our Lennox mid-efficiency natural gas furnace sometimes (usually during cold weather) does not run ...
  A: Ian, "What else can I do to figure this out"? "You really need to observe the furnace controls to ...
Tempstar Furnace12/17/2008
  Q: I have a Tempstar furnace. Lately during the heating cycle it would turn on and off several times ...
  A: Troy, I'm not sure what your furnace type, controls are. "Tempstar Furnace" Just says who made it, ...
Amana inducer blower stuck on?12/17/2008
  Q: My 3 year old Amana is giving me some serious issues. I have had 5 servicemen over now who haven't ...
  A: Kevin, I don't know what your furnace is? "two stage"? The inducer motor just closes the 24 volt ...
coleman hot air furnace12/16/2008
  Q: I have a coleman furnace model BGU10016A It starts up and runs through it's normal seq. The problem ...
  A: James, It sounds like your furnace is overheating from not getting enough air flow and the limit ...
AS Freedom 90 R12/15/2008
  Q: I am wondering about the flashing light. When the furnace is heating, it shows 41 green flashes and ...
  A: Stephen, I think your miss reading the flashes or it's faulty, there should be a legend that tells ...
Lennox furnace won't start12/15/2008
  Q: Our Lennox mid-efficiency natural gas furnace sometimes (usually during cold weather) does not run ...
  A: Ian, I'm not sure what you mean by "shows that the furnace is "running", when it is not"? Furnaces ...
furnace not pushing air ~ thermostat??12/15/2008
  Q: 18 below in Denver this morning and a fantastic time for the furnace to malfunction! We attempted ...
  A: Joe, I don't know what type of furnace you have or where in the house it is installed? Type meaning ...
gas furnace12/14/2008
  Q: The burners on my gas furnace, mounted horizontally in the attic, are cutting off too fast. They ...
  A: Thomas, In the heating mode when the thermostat calls for heat the vent exhaust blower starts, when ...
cold at one end of the house12/14/2008
  Q: I live in a rancher that will not stay heated in the back rooms were we sleep almost like there is a ...
  A: Steve, If your talking about hot water heat? The boiler heats the water, the hot water run's from ...
old Sears furnace12/14/2008
  Q: My neighbor has called PSE&G 6 times to fix her furnace. It will work fine then just not fire up. ...
  A: Paul, I don't know what the furnace is? Sears has gone through a lot of different makes of furnaces ...
Furnace Blowing Cold12/13/2008
  Q: Our furnace is blowing cold air, my husband was told that it is a fuse, but he hasn't found what he ...
  A: Brandi, There are hundreds of different types of furnaces, they all don't function identical, I ...
exhaust smell12/13/2008
  Q: We have a 1900 sq ft house that's relatively open space. Sometimes the house is filled with an ...
  A: Linda, Check the condensate drain pan that is under the attic unit. There are two drain pans, one ...
exhaust smell12/12/2008
  Q: We have a 1900 sq ft house that's relatively open space. Sometimes the house is filled with an ...
  A: Linda, I'm not sure what "exhaust smell" refers to? If you have a "working carbon monoxide/gas ...
Heater not working with panel on.12/12/2008
  Q: We have a roof mounted HVAC, it worked ok last year however this year I had to replace the ...
  A: Keith, Panel to the burner controls, panel to the blower compartment, panel to the electric wire ...
Heating Coils12/12/2008
  Q: I have a question concerning the heating coils in my electric furnace. When the tech. installed the ...
  A: Brandon, It takes a certain size/capacity to heat an area, the amount of electricity used would be ...
Blower Delay12/11/2008
  Q: I just noticed that my GMH95's heating starting cycle is wrong. The circulator blower is supposed to ...
  A: Max, You say, "The circulator blower is supposed to start after the burners go on, but it doesn't, ...
york heating unit12/11/2008
  Q: I have a York Diamond 90 Heating unit, its a horizontal flow. The thermostat will turn on the unit ...
  A: William, It could be the motor, a capacitor, the fan center or a wiring proublem? You need to use an ...
Furnace turns on the off within a few moments12/11/2008
  Q: I have an Amana Air Commander 90 furnace. It runs fine most of the time, but a couple times a day ...
  A: Calvin, I can't diagnose the problem from your statement that it "will turn on for about a minute ...
Gas forced air heater12/10/2008
  Q: I have a older(18 years) Heil/Quaker Gas heater. The blower on the heater runs all the time now. ...
  A: Peter, I don't know what the small red plastic pin is? I kind of doubt if the thermodisc is ...
modine heater 105ab12/10/2008
  Q: I have recently been given a modine PA105ab heater the small gas line that runs up front and ...
  A: Nathan, I don't follow your description of the gas line? I don't have any thing laying around to ...
long-term freon exposure/health problems12/9/2008
  Q: Unbenounced to me, our HVAC man told my husband we have a freon leak, & recommended just refilling ...
  A: Pat. I don't know of any health proublem's and I have never seen any health warnings on the side of ...
Heating and Cooling Unit12/9/2008
  Q: I have a Janitrol AR49-1 heating and cooling unit that I bought in 2003. Service man has been out 5 ...
  A: Dale, A heat pump has two sections, One inside and one outside if it's a split system, or both ...
heating12/9/2008
  Q: ..I have a furnace that is at least 20 years old. I had it checked out last winter and it checked ...
  A: Ronn, What you really need to do is observe the furnace controls compartment and see exactly what ...
not run12/9/2008
  Q: I have a goodman self contained heating and cooling unit.doesnt seem to run,ive checked breakers and ...
  A: Jeff, Did you ever get any 24 volt power to the thermostat? Thermostats regardless of what they are ...
Tankless Hot Water Problem12/8/2008
  Q: I'm having a problem with my tankless hot water unit. When I run the hot water anywhere in the ...
  A: Nick, Question is not in my field but it sounds like the heating element is drawing more amps then ...
Zoning/Damper Adjustment12/8/2008
  Q: I have a 4-way multipoise furnace (Carrier) and live in a two story townhouse. In the summer, the ...
  A: Chris, I don't know what a "4-way multipoise furnace" is? I have no idea what your duct work system ...
Burnham Holiday Gas Boiler12/7/2008
  Q: We moved into this house 4 years ago. I can't seem to locate the filter for this gas boiler. Number ...
  A: Sheilia, With baseboard heat the hot water flows through a pipe with fins around it inside the base ...
Heat Pump not Defrosting12/7/2008
  Q: I have a Heil Efficientcy 5000 Heat Pump that is about 12 years old. It does not appear to be ...
  A: Kirt, Heat pumps have a defrost control that allows the unit to defrost periodically, I don't know ...
Moncrief Furnace12/7/2008
  Q: I have a Moncrief furnace model- W-125 Serial # 4. It is a gravity furnace using natural gas. My ...
  A: Jessica, The heat from the burner needs to travel up into the space/room/area that you want to heat, ...
bard furnace12/6/2008
  Q: Jim i have a bard tsf-80 . 10 years old. on thermostat closure intermittently the induced draft ...
  A: John, Stick a flame down there at the burner where the igniter is, use one of those butane pistol ...
not run12/6/2008
  Q: I have a goodman self contained heating and cooling unit.doesnt seem to run,ive checked breakers and ...
  A: Jeff, If your getting 110 to the primary side of the transformer there should be 24 volts to the ...
External Temp Sensor Connection Not Available on New Thermostat12/6/2008
  Q: I have a Lennox Heat Pump w/backup gas furnace. I wanted to install a programmable thermostat and ...
  A: Doug, My take on all this is why do you even have a heat pump? Where I live it costs "FOUR TIMES" ...
Match the width of the furnace cabinet to the width of the A/C coil cabinet?12/5/2008
  Q: Jim - I'm getting estimates on replacing my gas forced-air furnace with an 80%-efficiency two-stage ...
  A: Diane, I don't know what your existing furnace is or why your even going to replace it? I don't keep ...
Match the width of the furnace cabinet to the width of the A/C coil cabinet?12/5/2008
  Q: Jim - I'm getting estimates on replacing my gas forced-air furnace with an 80%-efficiency two-stage ...
  A: Diane, There are all kinds of different furnaces used for different applications. You need to tell ...
Blower will not stop running12/5/2008
  Q: Jim, sorry to keep at this but one more question. I found that I can get a new Blower control board ...
  A: Kevin, I don't keep service manuals on all the hundreds of furnace makes and models. I have no way ...
Blower will not stop12/5/2008
  Q: I have a carrier super saver 58SSB095 no matter what the position of the thermostat the blower runs ...
  A: Kevin, At least you have eliminated the thermostat as the problem. The way it works is when power is ...
Water dripping from furnace flue12/4/2008
  Q: This fall I replaced the furnace flue as the old flue was more than 25 years old and had rusted out ...
  A: Don, There are (call them rules) that need to be followed when installing a "flue pipe". A ...
Blower will not stop12/4/2008
  Q: I have a carrier super saver 58SSB095 no matter what the position of the thermostat the blower runs ...
  A: Kevin, The thermostat could possibly have a short in the blower circuit workings of the thermostat, ...
Blower will not stop12/4/2008
  Q: I have a carrier super saver 58SSB095 no matter what the position of the thermostat the blower runs ...
  A: Kevin, Pull the wire connected to the "R" post on the thermostat to see if the blower stops, may be ...
Intertherm gas furnace problem12/4/2008
  Q: Intertherm model M1MB 07A BW. Sometimes but not always when it kicks on it will click several times ...
  A: John, I can't help you with the aggravation problem but it sounds everything is working except the ...
Heating12/4/2008
  Q: Jim, my furnace (gas forced air) runs for about 5 mins(tell temp is reached) then shuts down, then ...
  A: Sheri, I think maybe the furnace is older? I think furnaces with standing pilot lights are at least ...
A/C Fan12/3/2008
  Q: I have a Trane central air system its separate from the heating system. The air handler is in the ...
  A: Rich, With the fan switch on the thermostat in "on" setting the fan runs constantly regardless of ...
gas furnaces12/3/2008
  Q: I have a 15 year old Trane XL 90 furnace, 120,000 btu, gas. 3 days ago the gas would not ignite but ...
  A: Bruce, Sounds most likely like you need a new "tech" All this changing parts thing, it's hard ...
emergency furnace situation12/3/2008
  Q: I have a senior in the home and was wondering if the furnace could blow up from overheating. The ...
  A: Bernadette, I don't know what your furnace is but furnaces have a high limit control that would shut ...
Lennox model G24m3/4-100A-1112/2/2008
  Q: furnace will not start up two green lites stay solid,manual means bad control board,it is in hard ...
  A: Ike, 110/120 volts go to the unit, 110 goes to the blower fan control, inducer relay. and the 24 ...
Compressor Problems12/2/2008
  Q: I recently did a routine maintenance for a 2hp window unit air conditioner in my home. The AC was ...
  A: Hope, Window units are out of my line but You need to see if the compressor is getting power. If ...
Rheem forced air heat unit not heating12/2/2008
  Q: Unit is about 8 years old, cools but doesn't heat. New thermostat, new plenum, gas lines not ...
  A: Jim, There are a few different types of igniters that work a bit different. If your igniter lights, ...
Elect. Central H/AC Unit12/2/2008
  Q: Mr Barnhart you are very kind to field my question. Being a women I always fear service people ...
  A: Lynda, Your fears of service people taking advantage of you are well founded and it has nothing to ...
proper sizsing on a furnace12/1/2008
  Q: I have a house that has only two levels one for living 400 square feet and a lower that is 400 ...
  A: Michael, About the only thing that you asked about that I can comment on is that the furnace can ...
goodman heat pump wont start11/30/2008
  Q: im getting power to the outside unit but no voltage to the thermosat so its not starting,, ANSWER: ...
  A: Jeffrey, I don't have a wiring diagram for your unit? The 110 from the power source feeds the 24 ...
belt drive blower11/30/2008
  Q: I have a 110v belt drive motor blower on a Williamson furnace.When the motor starts there is a ...
  A: Brian, I would prefer a belt drive over a direct drive any time. I don't know what your furnace is ...
goodman heat pump wont start11/30/2008
  Q: im getting power to the outside unit but no voltage to the thermosat so its not starting,, ANSWER: ...
  A: Jeffrey, With a self contained unit, everything in one unit there are separate electric circuits. ...
Motor hums but doesn't run11/29/2008
  Q: I have a Trane XL1800 A/C unit. We noticed the house was unusually warm following a very heavy rain ...
  A: Hal. The ccapacitor is a small canister type item connected inline with the electric wire that feeds ...
Condensation on interior of windows11/28/2008
  Q: Jim, I live in central Ontario by Georgian Bay. I just installed a high efficiency gas furnace, new ...
  A: George, Your house minght be to tight? How high is the high efficency furnace? where dose it get ...
Funny smell coming from ducts11/28/2008
  Q: We have a York 3 ton unit, compressor outside air handler in the garage. It is 9 years old. We ...
  A: Susan, OK, It would have been interesting to know what or wheare the other end of the pipe drained ...
Motor hums but doesn't run11/28/2008
  Q: I have a Trane XL1800 A/C unit. We noticed the house was unusually warm following a very heavy rain ...
  A: Hal, Are you saying you have a heat pump? Are you saying that in the cooling mode that the outside ...
Funny smell coming from ducts11/28/2008
  Q: We have a York 3 ton unit, compressor outside air handler in the garage. It is 9 years old. We ...
  A: Susan, I'm not saying it's the coils. I'm saying it may be from left over condensation water that ...
Draft Induced Fan11/28/2008
  Q: I have a RUUD Silhouette Gas Furnace Model UGDG that was installed about 15 yrs ago. I notice that ...
  A: Ron, I don't have a book on a "RUUD Silhouette Gas Furnace Model UGDG" for purposes of researching ...
Heil DC 9011/28/2008
  Q: I have a Heil DC 90 model number NUGMO75EGB1. Last year the induce fan broke and needed replaced ...
  A: Kelly, I can't help with a "service manual" and I don't know of any "problems with the heat ...
Green and Red Lights on Thermostat11/27/2008
  Q: Good Morning Jim, I live in a condo building and have an 8 yr old Carrier HVAC #FB4ANF024 that is ...
  A: Michael, I don't know your thermostat? I don't have a user manual on a "Carrier HVAC #FB4ANF024" and ...
Funny smell coming from ducts11/27/2008
  Q: We have a York 3 ton unit, compressor outside air handler in the garage. It is 9 years old. We ...
  A: Susan, You can't get any smell from the outside unit to the inside unit. Check the condensation drip ...
Keep Rite DC8011/27/2008
  Q: I have a Keeprite DC80 furnace, I bought it from a direct dist. off the internet about 3 yrs ago, ...
  A: Mike, I don't have a reference library for looking up and researching all the thousands of makes and ...
gas hot air heater11/26/2008
  Q: I have a Payne gas hot air heater. When heat is called for the exhaust blower starts for 15 seconds ...
  A: Fran, If the exhaust blower doesn't run the pressure switch won't close and no power will go to the ...
thermostate11/26/2008
  Q: we need a diagram for our thermostat for a 220 fridiare ac and heating unit thank you need asap if ...
  A: Paula, Most likely pasted on the inside of the blower compartment door/cover you can find a wiring ...
Gas Furnace with only air-no heating!11/25/2008
  Q: Been looking in several places and came up with the fact that my clogged filter led to either a ...
  A: Mark, When the temperature in a furnace but outside of the heat exchanger gets to around 200 degrees ...
gas furnace Janitrol gmp075-0311/25/2008
  Q: the inducer motor won't come on, so nothing works. I ran a direct wire to the inducer and also ...
  A: Terry, There should be a wiring diagram for your furnace pasted on the inside of your blower ...
Gas Furnace11/24/2008
  Q: Sir, my gas furnace has recently started making a "foom" sound. During the heat cycle, while the ...
  A: Jerry, When your burner burns, the fumes from the flame go somewhere, the burner get's air for ...
Gas Furnace "blowback"11/24/2008
  Q: Sir, my gas furnace has recently started making a "foom" sound. During the heat cycle, while the ...
  A: Jerry, It's called "delayed ignition", the gas flows out and something lights it, the problem is ...
Gas Furnace with only air-no heating!11/24/2008
  Q: Been looking in several places and came up with the fact that my clogged filter led to either a ...
  A: Mark You do need a clean filter to keep the furnace burning properly and to keep it from over ...
Hot water heat exchanger fan control11/24/2008
  Q: I have a hot water heat exchanger with a fan that runs off of my boiler to heat a family room in the ...
  A: Mark, You can get a fan control that is timed controlled with a relay. There are several different ...
heat zone down11/22/2008
  Q: Teledyne-laars mini combo over 10 years old. In basement. Upstairs zone worked a few weeks ago ...
  A: Ray, What's a "Teledyne-laars mini combo"? If this is a hot water heat system with an air lock you ...
brazing on a charged HVAC unit11/22/2008
  Q: What concerns should I have when brazing on a unit that has been charged and then had its ...
  A: Ted, Sorry I can't help, it's news to me? Follow-up Ted, I got this off of the internet. Freon in ...
Heat pump zone control dampers stuck open11/22/2008
  Q: I live in a three level townhouse with zone control, the top floor is one zone, the two lower floors ...
  A: Craig Not knowing exactly what your heating on floor one, two, and three and what size all the ...
emergency hot water heater11/21/2008
  Q: I bought a new water heater in 1994 after an earthquake. Water is leaking from 1994 flex tube ...
  A: P, Most all hot water heater connector pipes are flexible these days not so much for earthquakes ...
Furnace Not Working11/21/2008
  Q: Attempted to turn gas furnace for 1st time today for the season, I'm concerned of water pipes ...
  A: Keven, I don't know any thing about furnaces that are installed on there side? Maybe it's an all ...
Heat Pump11/21/2008
  Q: I have a Trane heat pump. when the AC is on the condenser fan blows normally. When I switch to heat ...
  A: Bill, When the thermostat is in the cooling mode the reversing valve is set for the proper flow, ...
RUDD FURNACE NOT WORKING11/21/2008
  Q: I HAVE A RUDD SILHOUETTE II MOD# UGPH-07EAUER CAN TURN ON HEAT IT WILL COME ON GET TO THE RIGHT ...
  A: Tom, The only chance I have of diagnosing a furnace problem over the Internet is to know exactly ...
Heat Pump11/21/2008
  Q: I have a Trane heat pump. when the AC is on the condenser fan blows normally. When I switch to heat ...
  A: Bill, Sorry no Idea? When the contactor pulls in the compressor and the condenser fan should both ...
Furnace Blower Motor11/20/2008
  Q: I have an old Williamson Deluxe forced air furnace. Within the last month my blower motor won't ...
  A: Jason, A belt drive blower! that is an old one. You can try getting some oil down the motor shaft, ...
Heating Ducts11/20/2008
  Q: Recently purchased a foreclosure home that needed new Heat/AC unit. I had a couple of contractors ...
  A: Linda, There are duct's and there are duct's! What kind do you have? Ducts with insulation that rust ...
Goodman Furnace, gas valve wont open11/19/2008
  Q: This gas valve is not opening thought he electric coil is heating up. There seems to be not current ...
  A: Joseph, What's your furnace? Efficiency, Age? If you have electronic ignition and vent exhaust ...
Gas Baseboard Heat - 4 Zones - 1 not working11/19/2008
  Q: ..so how could verification REALLY happen). Anyway, now that it is cold, we have tried turning up ...
  A: Suzanne, Are you talking about a furnace or a boiler? If your talking a hot water boiler with ...
Faulty System?11/19/2008
  Q: Just moved into a brand new home in August 2005. Have a Janitrol Heating System and a year later it ...
  A: Angelise, "Janitrol" is just a brand name, "Heating System" can refer to a lot of different way's to ...
2 residential system balance issues11/18/2008
  Q: I have a full dual system, 2 of each. The upstairs has all registers in the ceiling with flexi insul ...
  A: Richard, I don't know what your houses floor plan is up and down but I'm assuming that there is a ...
rheem gas pack11/18/2008
  Q: do you know if the rheem gaspack heat exchanger is warranted for 20 years?
  A: Cindy, I don't know what your particular heat exchanger is warranted for? The problem is even if the ...
frigidare furnance error code11/17/2008
  Q: installed new frigidare furnace single stage. I am getting an error code of "false flame gas relay ...
  A: celine nesjan, I don't know what " furnace ignites,runs to temperature then the blower assembly does ...
FILTERS11/17/2008
  Q: IS IT ABSOLUTELY NECESSARY TO HAVE A FILTER IN WHILE RUNNING THE AIR CONDITIONER?
  A: Sandy, You can run the air conditioner without a filter being in the unit for as long as it takes ...
Goodman gas furnace will not ignite11/17/2008
  Q: Goodman GMP100-3 Approx 13 years old Attempting to turn on furnace for first time this season. ...
  A: Jason, If everything is working except the igniter is not glowing and lighting the gas then it must ...
bryant heat and air unit11/17/2008
  Q: I RECENTLY REPLACED THE BURNERS IN MY UPSTREAM CENTRAL HEAT AND AIR UNIT. I PLUGGED THE UNIT BACK ...
  A: Harry, Did your "HEAT AND AIR UNIT" work before you fixed it? I don't know what your "unit" is, or ...
Janitrol GMP125-4 Furnace not running full cycle11/16/2008
  Q: My Janitrol 125-4 furnace will only start when I reset the thermostat. And then it will only run for ...
  A: Kevin, If the igniter glowes but the burner dosen't light your igniter may need to be positioned ...
Pennco Gas Home heating boiler modal 15B11/16/2008
  Q: I recently purchased the above boiler from Sears. I am having a problem with gas build up and ...
  A: Rich, I don't know your boiler? What your boiler is having is delayed ignition, too much gas gets ...
HVAC media filter install11/16/2008
  Q: I had an HVAC contractor check my system recently. After checking my ducts he recommended a cleaning ...
  A: Mario, Save your money! The guy's trying to rip you off. I don't know what your system is "two ...
Janitrol GMP125-4 Furnace not running full cycle11/16/2008
  Q: My Janitrol 125-4 furnace will only start when I reset the thermostat. And then it will only run for ...
  A: Kevin, I'm not sure what your furnace is exactly, there are hundreds of never ending model numbers ...
Weatherking11/16/2008
  Q: Moved into house built in 1974 last Feb. Handyman put in a "sequencer" & Weatherking furnace (model ...
  A: Holly, I don't know your furnace? There are a lot of different types of fan switches controls used ...
Furnace not shutting off11/15/2008
  Q: I have a Fraser-Johnston Gas Furnace. The furnace will ignite and turn on and when at thermostat ...
  A: Troy, I still don't know what type of furnace it is or where it's located? Example: Up flow in the ...
Burner Cycling11/15/2008
  Q: After a recent repair (Armstrong Gas Furnace diaphram switch replacement), I listen more closely and ...
  A: Lee, OK what your calling "diaphragm switch" is the induced vent draft "pressure switch". I would ...
Weatherking11/15/2008
  Q: Moved into house built in 1974 last Feb. Handyman put in a "sequencer" & Weatherking furnace (model ...
  A: Holly, First: Handyman put in a "sequencer", What dose that mean? What or where is this "reset ...
Burner Cycling11/14/2008
  Q: After a recent repair (Armstrong Gas Furnace diaphram switch replacement), I listen more closely and ...
  A: Lee, What is a "Gas Furnace diaphram switch"? How long dose the gas burner stay on before it "cuts ...
boiler11/14/2008
  Q: here it goes I have a boiler almost 16 years old its a peerless forced hot water tankless. it ...
  A: Rocky, Your aquastat should be set for about 10-12 psi. cold water and about 180 degrees ...
Heating and cooling unit blows out heat when ac is on11/14/2008
  Q: We have recently had a cold front and have been using the heat only.One day it got a little warm in ...
  A: Clarissa, Maybe a shorted low voltage wire somewheare along the line? Maybe a stuck or faulty ...
induced draft blower...low temperture problems11/13/2008
  Q: Expert: Bill Brainard Date: 9/9/2008 Subject: Armstrong Furnace Question Hi Jim, I am contining to ...
  A: Jim, I don't keep reference material for researching makes and model numbers on equipment and ...
Goodman gas furnace will not ignite11/13/2008
  Q: Goodman GMP100-3 Approx 13 years old Attempting to turn on furnace for first time this season. ...
  A: Jason, Are you getting 24 volts through the pressure switch when the blower is running normal? You ...
Rheem Furnace Not Ignitiing11/13/2008
  Q: In the past 5 years I have had to install a new gas valve (pilotless ignition with remote flame ...
  A: Jeremy, If you are hearing a click and the gas comes on for just a second but doesn't light it may ...
Heating/AirConditioning Systems11/13/2008
  Q: Our furnace, installed in our house in 1967, has finally died. We have met with two contractors to ...
  A: Judy, If your existing furnace says 96,000 Bonnet cap, that means that you need at least a 100,000 ...
New HVAC unit11/12/2008
  Q: I am in the middle of a remodel. 1200 sq ft house, adding 250 sq ft on to "master" bedroom to make ...
  A: Stephanie, I assumed you were getting the bids? If you a general contractor and they are hiring the ...
annual freon leak11/12/2008
  Q: I had a Rheem heat pump installed in 2003. Except for maybe 2004, I've had to make at least one ...
  A: Trish, Depending on what your service contract says? Service contracts are interpreted in different ...
Furnace turns on when I use microwave11/12/2008
  Q: I have a Coleman furnace for a mobile home. It turns on when I use my Panasonic microwave. It just ...
  A: B.J., If your saying the furnace blower only turns on when you use the microwave? Some blowers are ...
Goodman gas furnace will not ignite11/12/2008
  Q: Goodman GMP100-3 Approx 13 years old Attempting to turn on furnace for first time this season. ...
  A: Jason, In the opposite side of the burner compartment away from the igniter there is a flame sensor. ...
Heating/AirConditioning Systems11/12/2008
  Q: Our furnace, installed in our house in 1967, has finally died. We have met with two contractors to ...
  A: Judy, What size is your dead furnace? Check the rating plate/sticker on the old furnace for BTU ...
New HVAC unit11/12/2008
  Q: I am in the middle of a remodel. 1200 sq ft house, adding 250 sq ft on to "master" bedroom to make ...
  A: Stephanie, As far as I know "Day & Night name was discontinued years ago? With a "Packaged unit" ...
American Standard Freedom 8011/11/2008
  Q: I have a Freedom 80 model number ADD080C936F0. I am getting a 3 blinking light alert. I'm ...
  A: John, The three flashes of the LED are telling you which area the problem is in. There should be a ...
Rheem Heat Pump11/11/2008
  Q: When my heat is on the unit outside must work correct? Well, last year I did not know this so my ...
  A: Corey, I'm not sure exactly what your heat pump is doing. With a heat pump system all electric, this ...
hvac for freestanding workshop11/10/2008
  Q: I am converting a 20 x 14 potting shed into a craft studio. I'm adding insulation and vinyl siding ...
  A: lucille, If you don't need a lot of heat you probably can get by with a through the wall or through ...
Furnace pilot won't stay lit11/10/2008
  Q: Furnace is Fedders Flexaire II probably 36 yrs old. Pilot went out overnight and repeated attempts ...
  A: Jay, I don't know exactly what your furnace control setup is? Electronic ignition for the pilot is ...
1978 whirlpool furnace11/10/2008
  Q: When i go to light my pilot light i have to hold the button in for at least 2 to 3 minutes for the ...
  A: Tammie, Your pilot is probably being sucked out when the burner cycles on and off. When your ...
Furnace pilot won't stay lit11/10/2008
  Q: Furnace is Fedders Flexaire II probably 36 yrs old. Pilot went out overnight and repeated attempts ...
  A: Jay, If the pilot flame engulfs the element on the thermocouple. If the new thermocouple isn't ...
What is WATCHGUARD mode?11/9/2008
  Q: I have an americanaire natural gas furnace made by concord. the model# is RGH80A100D20-2A My problem ...
  A: Jody, "Watchguard" is a new one on me? sounds like something you spray on fabric? I don't know who ...
Fedders Gas Furnace pilot won't stay lit11/9/2008
  Q: Furnace is Fedders Flexaire II probably 36 yrs old. Pilot went out overnight and repeated attempts ...
  A: Jay, I don't know where you live or what stores you have access to? If your around a Lowes or a Home ...
fan,limit controls hook-up11/9/2008
  Q: I have replaced my hot air furnace with a newer used one and I'm replacing the limit control.I ...
  A: Randy, I don't know what type of "limit control" your "limit control" is? Are you sure it's not a ...
Direct vent wall mount heater pilot light blows out11/9/2008
  Q: I have a Schwank Perfection gas(propane)direct vent wall mount furnace, mounted on a west wall. The ...
  A: B, I'm not familiar with the "Schwank" brand. With a through the wall vent the fumes vent out and ...
Price of new unit and coil11/8/2008
  Q: Have quote from a contractor for a Goodman 3 ton heating pump and Mortex 3 ton coil. Adapt to ...
  A: Brad, The big thing is Which unit are they replacing? Or is it everything? If the quote is for ...
Price of new unit and coil11/8/2008
  Q: Have quote from a contractor for a Goodman 3 ton heating pump and Mortex 3 ton coil. Adapt to ...
  A: Brad. I don't know what the quote is for? If you have a split system the outside unit is the heat ...
Water Leaking from AC11/8/2008
  Q: Water Leaking from Air Conditioner ...
  A: Kathy, I don't know what your unit is but when your running the air conditioner the condensation ...
Weil Mclain boiler P 368 WT11/8/2008
  Q: We have a Weil Mclain boiler P 368 WT It does not make enough hot water to take a bath, and the ...
  A: Ken, Sorry I don't have the expertise to answer about domestic side arm water heaters. Your best bet ...
Maytag 5 ton gaspack11/7/2008
  Q: I have a 2 year old Maytag gaspack and a 10 yr. old Honeywell 7-day (5+2) programmable t'stat. The ...
  A: Larry, You need to see what your fan switch is? some are setteable and some are factory set. You can ...
New HVAC11/7/2008
  Q: Need advice. Need to replace heating and air system for 1900sq/ft ranch with finished basement in ...
  A: Steve, You have to check the utility company where you live, gas or electric is a supply and demand ...
Rheem Classic 90 RGRA Furnace11/7/2008
  Q: Our furnace is not putting out enough hot air and my husband thinks the outside of the heat ...
  A: Shelly, I can't think of anything that might stick to the outside of a heat exchanger? I think your ...
BEST OVERALL CENTRAL AIR FOR THE MONEY11/6/2008
  Q: My home is about 1700 sq ft. One floor. The air cond system will go over head in the garage. I have ...
  A: Warren, I don't really know what your looking at? Gas, electric, oil, heat pump, heat and cooling, ...
Forced-Air Heater fan won't turn off(Holly brand)11/6/2008
  Q: I have a Holly brand forced-air heater in a closet-type space. My thermostat works fine, as the ...
  A: Andy, I'm not sure what the fan switch is that's on your furnace? The summer switch is a switch that ...
Puron odor from new Carrier heat pump11/6/2008
  Q: I have no doubt that the odor in my house is from my new Carrier heat pump and that it must be the ...
  A: Linda, Unless there is a leak somewhere in the systems flow of refrigeration in which case after a ...
Wrong Blower11/5/2008
  Q: 10 years after installation of a complete carrier A/C system, we found out that our installer put a ...
  A: Debbie, I think the bad guy is the one who is telling you that you only have a one speed blower and ...
air condition for sunroom11/5/2008
  Q: We are building a sunroom size 15 X 9.5 feet. The north, south, and west walls have windows almost ...
  A: Rachel, Will the sunroom be closed from the rest of the house? Will there be window coverings on the ...
central heat problem11/4/2008
  Q: I'll follow instructions on my central ac/heat unit by turning down thermostat to lowest ...
  A: Randy, When something is working there isn't a point of failure. If your furnace has an LED light ...
Return line on split system frosting up11/4/2008
  Q: Hey, This it the first time i've noticed frost/ice buildup on the return (larger) pipe to the ...
  A: The "bolt" is subject to frosting if it isn't covered/insulated, wrap a chunk of insulating material ...
furnace11/4/2008
  Q: We have a house that was built in the 1940's. There is a Challenger floor heater that is from the ...
  A: Chris, The pilot rod turns the gas on to the pilot light. The burner rod turns the gas onto the ...
central heat problem11/4/2008
  Q: I'll follow instructions on my central ac/heat unit by turning down thermostat to lowest ...
  A: Randy, When your thermostat calls for heat, first the vent exhaust blower comes on, next the igniter ...
GAS FIRED FORCED AIR FURNACE11/4/2008
  Q: HVAC guy came out today and he told us that our automatic gas control valve is not operation ...
  A: Jason, I don't know what your calling an "automatic gas control valve" but There isn't any kind or ...
Hot water heater11/3/2008
  Q: Don't know if you want to tackle this but I thought I'd give it a try. I am renting a practically ...
  A: Vivian, I don't know your water heater? it's all Greek to me. If you were in the USA with this water ...
gas heat11/3/2008
  Q: I have a 20 year old 3 zone base bord enerjet gas furnace. The problem that I am having is when all ...
  A: Nick, I don't know "enerjet"? It's not in my area at least not by that name. Your saying a "gas ...
furnace replacement11/2/2008
  Q: We have had six estimates to replace a 30+ yr old unit with a new 80% efficient model. We feel we ...
  A: Susan, Your existing furnace is an 80% efficient furnace. A 100,000 BTU input with an 80,000 BTU ...
furnace replacement11/2/2008
  Q: We have had six estimates to replace a 30+ yr old unit with a new 80% efficient model. We feel we ...
  A: Susan, The best barometer for choosing a BTU capacity is your existing furnace. Check the rating ...
Amana Air Command 90 furnace11/1/2008
  Q: My blower motor runs but the furnace won't light. I have replaced the ignitor. The troubleshooting ...
  A: Mike, When the vent draft inducer blower comes on it blows air pressure into a switch and closes the ...
runs on emergency heat11/1/2008
  Q: What would cause a heat pump to run on emergency heat all the time. The guy who looked at unit said ...
  A: bobh347, A heat pump is just an air conditioner that reverses the flow depending on the thermostat ...
heat wont kick off11/1/2008
  Q: our heat pump ran last night all night without kicking off. this morning i put it on emergency heat ...
  A: David, I assume your heating or trying to heat with electric instead of gas or oil or something ...
Goodman gas pack pgb036100-1a11/1/2008
  Q: This heater wont ignite, the circuit board led blinks twice which according to the sticker nearby ...
  A: Lee, Anything is possible? I don't have a manual on your unit, When the thermostat calls for heat ...
Furnace works intermittently10/31/2008
  Q: I have 1995 HSI gas furnace (can't find make or model anywhere). Won't work. The exhaust fan comes ...
  A: Nikos, When the igniter glows hot the gas should flow, If the burner doesn't light in about one ...
coleman gas hot air furnace/starting up problem10/31/2008
  Q: I have a coleman hot air furnace and on out of about 30 starts. the unit wont start even when the ...
  A: Jim, The vent motor runs on 115 volts, the thermostat sends power to a relay, I don't know on your ...
coleman gas hot air furnace/starting up problem10/31/2008
  Q: I have a coleman hot air furnace and on out of about 30 starts. the unit wont start even when the ...
  A: Jim, When the thermostat calls for heat the first thing that happens is that the vent blower comes ...
cold air returns10/30/2008
  Q: are cold air returns needed with a 96% efficient furnace that draws air from outside.
  A: Jeff, A cold air/return air is where the furnace gets it's air supply that it blows out through the ...
Freedom 90 Open High Limit10/30/2008
  Q: I have an American Standard Freedom 90 furnace Model ADC100C948B6. I have had a repair men out and ...
  A: Michael, First, What is "code 4"? If your LED is flashing 4 flashes what dose the legend on your ...
Furnace Water Pressure10/30/2008
  Q: I have a hotwater baseboard heat furnace. In the past I have noticed the water pressure to be ...
  A: Dave, The water pressure should be about 10 when the boiler is cold. The pressure should go to about ...
Rheem gas furnace burner ignites but blower does not come on10/30/2008
  Q: I have a circa 1980 Rheem gas furnace (RGAC-080C). When the thermostat calls for heat, the burner ...
  A: Tim, It sounds like a bad motor or a capacitor? You need to stick an electrical tester onto the ...
Trane Unit repair10/30/2008
  Q: I have a 1993 Trane outside heat/ac unit that has been diagnosed with cracks in the heat exchanger. ...
  A: Justyna, Diagnosing a heating unit and saying it has a cracked heat exchanger is a favaroit thing ...
Adding a Zone on a single zone boiler10/30/2008
  Q: I have a Weil-Mclain Boiler model HE-3 with a single zone set up in it now. My second floor rooms ...
  A: Dave, Your second floor zone needs to originate at the boiler and return to the boiler, a loop with ...
control board for heating unit10/29/2008
  Q: I was told my control board was damaged. my control board got water on it and looks like the pan is ...
  A: Deanna, There are lot's of different "control board's" you can probably find you're on the Internet? ...
Furnace Water Pressure10/29/2008
  Q: I have a hotwater baseboard heat furnace. In the past I have noticed the water pressure to be ...
  A: Dave, The pressure should be around 15-20 psi. The pressure relief may let some water off at 31-32? ...
HVAC Coils10/28/2008
  Q: Last spring, the coil needed to be replaced in our upstairs HVAC unit, as the old coils (only 1 year ...
  A: Lauren, I don't know how your cooling coil is situated in your unit? I don't know where in the house ...
heat pump doesn't shut off10/28/2008
  Q: i have a york infinity 8T heat pump and an aprilaire 6404 dual zone controller. we have no problems ...
  A: Joshua, The thermostat when it calls for heat connects the necessary wires that send power to a ...
new air system10/27/2008
  Q: I just bought a 23-year-old all-electric condo, and am experiencing weird odors -- some metallic, ...
  A: Deborah, There is no connection air wise between the inside air handler unit and the outside heat ...
Janitrol heating system10/26/2008
  Q: I am renting and have a Janitrol heater. The model number is GDI075-3. The landlords had 14X20x1 ...
  A: Gina, Every furnace has a place or way of installing a filter in the blower compartment. The idea is ...
Furnace Does not work10/26/2008
  Q: 1. I am working on a 40 year old furnace. The gas valve is Detroit Controls Model V579EL Series ...
  A: Nana, Try-http://www.grainger.com/Grainger/categories/hvacr/controls/gas-valves Look at the 3/4" ...
Furnace Does not work10/25/2008
  Q: 1. I am working on a 40 year old furnace. The gas valve is Detroit Controls Model V579EL Series ...
  A: Nana, Your best bet for finding parts is to surf the web. When I need something I buy or order ...
split system install issues10/25/2008
  Q: New system installed 5/08. can condenser installed 10" from exterior wall, cause excess noise when ...
  A: Debra, A drain pan is just a drain pan. water runs down hill, the condensate water produced by your ...
not getting hot air10/25/2008
  Q: the heating turns on and pumps but the air that come from the vents is like a lil chilly, its not ...
  A: eli, What is it? gas, electric, oil, coal, heat pump? How olds is old? 10, 20, 30, 40 or more years ...
Boiler installation problems?10/24/2008
  Q: I had a new gas Olsen boiler ( OMGB100) in the end of Jan 2007. Ever since then I have been having ...
  A: Gail, It sounds like you have a ton of problems? I don't know about how they do things in Ontario? I ...
Empire wall furnace10/24/2008
  Q: I have an empire wall furnace (propane) I got from my dad out of his cabin for my garage. It has a ...
  A: Chad, I don't know what your "wall furnace" controls are exactly? The pilot doesn't need AC ...
Furnace won't light10/23/2008
  Q: I have a furnace that was installed in a home built 2003-2004, it is an Air Ease, Ultra V, Tech 80, ...
  A: Derek, The blower that comes on first is the vent exhaust, the blower when it runs closes a ...
Pilot Goes Out10/23/2008
  Q: Jim, we have an approximately 34 yr. old Lear Segler LP gas furnace in a modular home. No basement ...
  A: Jon, What about the "draft Diverter" Is it as it should be or has it been blocked or altered? Where ...
fireplace heating10/23/2008
  Q: What is the most efficient way to heat a house with a fireplace? I am trying to at least heat 3 ...
  A: Eileen, To move air there has to be an inlet and an outlet, warm air naturally rises and cold air ...
Garage heater won't light10/22/2008
  Q: I have a Mr. Heater natural gas garage hetear that I installed last year. It worked great for about ...
  A: Rob, I don't know what your "garage heater" is? In my area I don't belive we have a "Mr. Heater", ...
Heating question10/22/2008
  Q: First of all please forgive my lack of knowledge in this issue. I will try to explain in the best ...
  A: Steven, When your thermostat calls for heat the first thing that should happen is the vent exhaust ...
baseboard heating10/21/2008
  Q: were considering purchaseing an 1800 sq foot home with baseboard heating ive always had gas forced ...
  A: Carrie, Baseboard heating" is heat that comes from some type of apparatus installed along the ...
sooty boiler exhaust10/21/2008
  Q: I have noticed in recent weeks that the exhaust from my boiler, which is in my garage, has become ...
  A: Dana, I don't know exactly what you mean by "exhaust" or what your boiler is. Soot is from not ...
HVAC size requirement10/21/2008
  Q: You have quite an extensive history in this area. I am going to have a 660 square foot extension ...
  A: Richard, With out doing a heat gain calculation rule of thumb prevails, of course there are factors ...
gmc home heat and air unit10/21/2008
  Q: My blower fan kicks off and on every minute. Even when I override the fan via tstat. I checked the ...
  A: Sam, Maybe a bad motor overheating and shutting off on a thermal overload, cooling and starting, ...
Carrier 58GS Ignition Problem10/21/2008
  Q: My Carrier furnace in basement will not come on, I have gotten the intermittent pilot to ignite but ...
  A: Michael, There are many different types of ignition controls. When your thermostat calls for heat ...
Heating10/20/2008
  Q: I turned my heating part of my unit on a couple of days ago (via the thermostat) and it was working ...
  A: Jason, You need to tell me what your unit is? gas heat, electric heat, heat pump? You need to tell ...
intake switch10/20/2008
  Q: We are getting an error 31 on our furnace. the furnace won't turn on. the company is telling me ...
  A: Marcy, I'm sure there is a lot of information I'm not getting? Is there some history? Where in the ...
electric heat & AC10/20/2008
  Q: We purchased a home with electric heat and ac. We've never had ac before and were curious if the ac ...
  A: Lisa, I suspect that what you have is a "Heat Pump"? A heat pump is an air conditioning unit cools ...
Furnace Filter10/20/2008
  Q: I have an Air Ease Ultra SX 80 furnace & I have no idea where the filter is located. Can you help?
  A: Cory, Every furnace has a means of installing a filter in the blower compartment of a furnace where ...
Heating10/20/2008
  Q: I turned my heating part of my unit on a couple of days ago (via the thermostat) and it was working ...
  A: Jason, What puzzles me is why "The unit kicked on outside"? If the thermostat is in heating mode and ...
Carrier 58GS Ignition Problem10/19/2008
  Q: My Carrier furnace in basement will not come on, I have gotten the intermittent pilot to ignite but ...
  A: Michael, I don't know what your furnace has for controls? I can't access furnace model numbers. Dose ...
Furnace is funky10/19/2008
  Q: Many thanks for your helping the masses. I have a friend, a teacher, divorce mother of 3 who has ...
  A: Mike, The thermostat is just a switch that opens and closes the gas valve. The wires on the ...
furnace help10/18/2008
  Q: Jim, My furnace wouldn't light so I was told to buy a new ignitor. I replaced the ignitor and I ...
  A: Carol, "The fault button" LED blinking light should be blinking a code. One blink in succession ...
"wireless thermostat control system"10/18/2008
  Q: I'm back with another question. Yeah, the wires from the packaged HVAC unit up on the roof to the ...
  A: Nolan, I don't have any experience with wireless thermostats, they came along after my time. When I ...
gas vs electric10/17/2008
  Q: My gas furnace died @ 20+ yrs. I know it needed replaced! My question is do I want to put in ...
  A: Dawn, I don't know of any places states, cites, towns, or counties where you can heat cheaper with ...
best way to heat&cool a sunroom10/16/2008
  Q: We are reworking a amsll sunroom (10'x12') to use year round. We want to use it as a small family ...
  A: Jan, Through the wall/window units that heat and cool are called heat pumps. A heat pump is an air ...
fan on a/c unit10/16/2008
  Q: We are sorry, but Joseph Lillie wasn't able to answer yourWhat are the advantages and disadvantages ...
  A: Nina, The advantages are just to circulate the air in the house for some reason, I have no idea ...
best way to heat&cool a sunroom10/16/2008
  Q: We are reworking a amsll sunroom (10'x12') to use year round. We want to use it as a small family ...
  A: Jan, If your working on the premises of 120 square foot room the room needs to have a door that ...
Return vents10/16/2008
  Q: Jim, we recently bought a older house (1930's-40s). At some point, a room that is approx. 600sf was ...
  A: Ben I would close the high return in the winter so that it doesn't pull the heat up to the ceiling ...
American Standard Freedom 90 intermitent ignition10/16/2008
  Q: Good morning Jim, American Standard Freedom 90 unit installed 4/2004 - last serviced? 8/2005. ...
  A: Dave, Eliminating the thermostat proves that the thermostat is or isn't the problem. If your exhaust ...
American Standard Freedom 90 intermitent ignition10/15/2008
  Q: Good morning Jim, American Standard Freedom 90 unit installed 4/2004 - last serviced? 8/2005. ...
  A: Dave, Let me try another way, starting at the beginning, Electric power is fed to a 24 volt ...
American Standard Freedom 90 intermitent ignition10/15/2008
  Q: Good morning Jim, American Standard Freedom 90 unit installed 4/2004 - last serviced? 8/2005. ...
  A: Dave, Sounds like your exhaust blower power is being intercepted, first thing that happens when your ...
forced hot water heating sysytem10/14/2008
  Q: Is it possible to install a supplemental tank to draw water for a forced heating system if the city ...
  A: Don, I suppose you could install a water supply tank that would feed the boiler if it lost water? ...
nat gas furnace10/14/2008
  Q: I have finished the basement in my home, insulated walls and installed new efficeient windows. ...
  A: Mike, Unless you have two separate systems, furnaces and ducts then the air blowing out both ...
a/c vent in two bedrooms leak when it rains10/14/2008
  Q: I have a 2004(Homes of Merit) manufactured home 1680 sq ft. where I live in sunny Florida. This ...
  A: Melissa, I'm not sure what you have there? Where I'm from a manufactured home is a prefabricated ...
Closed baseboard heating unit.10/14/2008
  Q: I recently went into my basement and found out that my circulating pump (B & G series 100) was ...
  A: Norvin, I have no idea how your hot water boiler is piped? The way a boiler is piped and what type ...
Ruud UGLQ Achiever downflow furnace10/13/2008
  Q: Do you know where the filter is - is there a rack?
  A: Don: There is a place for a filter on top of a down-flow furnace. You need to take the front access ...
Rheem furnace ignition10/13/2008
  Q: I have a rheem super quite 80 gas system I started it up recently for the heating season and it ...
  A: t, sounds like the spark igniter isn't sparking? I assume that the gas you hear is the pilot gas? ...
Rheem furnace ignition10/13/2008
  Q: I have a rheem super quite 80 gas system I started it up recently for the heating season and it ...
  A: "t", What dose "appears to go through all the cycles" mean? When your thermostat calls for heat the ...
1991 Carrier 58SXA060-GG Series10010/13/2008
  Q: I asked a question back in April of 08 about a flame out problem with my furnace. It seemed to ...
  A: Rick, I don't have a user manual for a "1991 Carrier 58SXA060-GG Series100" everything works in a ...
can i repalce a goodman furnance heat exchanger?10/13/2008
  Q: i have a 13 yr. old goodman furnance. the tech that came over to do a tuneup said the heat exchanger ...
  A: Ernie, I don't know your capabilities? First make sure there are cracks not just scratches? If ...
upgrade to a bigger fan10/12/2008
  Q: I have an Ultra 90 unit intalled on my second floor but it seems like the blower is not strong ...
  A: Rhoel, If your "affected area" is as big as a gymnasium and your "Ultra 90 unit is as small as a ...
Oil Heating10/12/2008
  Q: I've been told by some contractors that b-vent does not meet local codes for an oil heater.I have an ...
  A: Jean, Oil burns at a hotter temperature then gas, "B" vents have an aluminum inner liner that is OK ...
duct cleaning10/12/2008
  Q: Today we had our ducts cleaned for the first time. Our central air unit was installed five years ...
  A: Eric, I don't know that there is any written in stone rule that you have to cut any holes in ducts ...
gas furnace cycling time10/11/2008
  Q: I recently bought a house with an American Standard two stage gas furnace (maybe mid 90's vintage). ...
  A: Lance, When you set your thermostat to a temperature such as 66 the furnace can't start and go off ...
a/c compressor10/11/2008
  Q: My compressor unit (outside) was replaced 6 yrs ago. It stopped working a month ago and I have 3 ...
  A: Maria, I don't know exactly what your units are but the outside unit is your main air conditioner ...
Air conditioning10/11/2008
  Q: My home has two AC units that are almost two years old which cool opposite ends of my home. On one ...
  A: Kristy, I think you hit the nail on the head. "AC units" are insulated on the inside of the units ...
ductwork10/10/2008
  Q: We discovered a leak in ceiling and found it was a lot of condensation in the insulation. Also ...
  A: Rosemary, What are "the galvanized steel ducts" for? heating, cooling, both. What else is in the ...
HVAC quote from 2 companies10/10/2008
  Q: I received two quotes for two different companies that are a couple of thousand dollars apart for ...
  A: Howard, You would need to ask the companies that gave you the quote's. There are no set standards on ...
Central Air units10/9/2008
  Q: Can you tell me anything about the Intertherm brand and how it compares in quality to other brands.
  A: Robin, INTERTHERM Became Nordyne company in 1987. Brand-mate Miller. In 1998, Nordyne started ...
horizontal FAU in attic10/9/2008
  Q: The heat exchanger is cracked (small hair line crack about 3 inches long at the base of the return ...
  A: Olins, What's an FAU? How high efficiency, dose it freeze in your attic? I like Goodman furnaces, I ...
Punctured evaportor coil10/9/2008
  Q: Jim, while defrosting the freezer of my refrigerator I accidentally functured the coil. The ref is ...
  A: Donde, I don't do kitchen appliances but if you "punctured the coil you lost all the refringent, the ...
Floating Neutral Power Surge v. HVAC10/9/2008
  Q: I have a 2 year old Central Heat and A/C Unit all Electric. The power company did a big No-NO and ...
  A: Tricia, When something is working as it should work I think it's all but impossible to find any ...
Cracked Heat Exchanger10/8/2008
  Q: We have a Bryant Deluxe furnace (split system w/ac thing outside). The furnace is on the ground ...
  A: Susan: Contract, What kind of a contract? what's it for? I know you said you seen a "hairline crack ...
Humidifier Connection10/7/2008
  Q: Greetings, I have a Trane XV 95 two stage furnace and a Aprilaire 500 series humidifier. I have ...
  A: Darrell, I don't have the literature on your "Trane XV 95" or your "Aprilaire 500 series ...
furnace blower motor10/7/2008
  Q: Please, any advice you can give...is greatly appreciated. I have a Luxaire (do they even make them ...
  A: Lisa, It sounds like your squirrel cage blower wheel may have came loose or got out of line? If you ...
CFM thru duct work10/6/2008
  Q: Jim, thank you for taking the time for this. I'm wondering if a "bottle neck" is created by my 8.5" ...
  A: David, You should have a minimum of 200 square inches of free area, free area is the amount of ...
Heating and winter10/5/2008
  Q: I live in Michigan and it's heating time again. What is your opinion of turning the ther