"York blower problem " , posted Sun 14 Sep 21:11

I have a five year old York Diamond 80 and the blower does not run when the thermostat is in the "on" or "auto" position. Every thing else appears to work fine (i.e.compressor, power vent, etc.) and ... read more

emory

"Trane XR12 " , posted Sun 14 Sep 20:36

My ac unit TraneXR12 make a buzzing noise but it wont run, tried tripping the circuit breaker and nothing happened still same buzzing noise, the air handler is blowing air but its not cold air. Any he ... read more

ChrisB

"RiteTemp 6036 " , posted Sun 14 Sep 00:40

Hello,I purchased a RiteTemp 6036 from Home Depot to replace my TAYSTAT 350. When I removed the TAYSTAT 350 I marked all of the wires and connected them to my new RiteTemp 6036 per the wiring diag ... read more

13thPirate

"Broken Resistor on Lennox Hp26 261-1p " , posted Sun 14 Sep 00:06

I was looking at our Thermostat, and noticed a resistor inside was broken, now i know little to nothing about most of this stuff, but i do have some basic electrician skills, The resistor is located b ... read more

jade2

"No power to Furnace " , posted Sat 13 Sep 17:33

i have an American Standard Freedom 80 single stage furnace. i just purchased a Honeywell RTH 6300B T-stat. The wires on my furnace are W (white), R (red), G(Green) and C (Blue). There is no ... read more

kitmattson

"How long for dog urine to breakdown copper " , posted Sat 13 Sep 12:58

How long does it take typically for a dog's urine to rot through the aluminum fins and actually eat through the copper coil, causing the freon to leak out of a condensor unit??? ... read more

ronster71

"condensor fan and compressor not coming on " , posted Fri 12 Sep 18:20

Entergy has been doing some work right outside my subdivision and they have been cutting power on and off. Yesterday, the power went off and came back on but not my outside ac unit. The condensor fan ... read more

mduplessis

"Slow moving condenser fan. " , posted Fri 12 Sep 13:58

Can the lack of air being drawn through condenser coils cause the motor to run slower than normal? I have replaced the capacitor and the motor. I do believe the coils are dirty, but have not been able ... read more

mickabersdad

"Need to cross reference potential relay " , posted Fri 12 Sep 11:20

I have a Lennox G16 residential AC unit model # HS19-461U-1P and the potential relay needs to be replaced. Starting cap is good, freon is good. Tries to start and about half of the times does, other ... read more

klt

"fan runs all the time... " , posted Fri 12 Sep 09:38

I've tried turning everything off at the thermostat. I've even removed the thermostat from the wall, but the fan constantly runs. Is this something anyone has heard of? It runs 24/7. ... read more

bstm23

"WOOD FURNACE " , posted Fri 12 Sep 07:04

I purchaced a home in Fallston , MD that has a wood furnace in the basement as an auxillary heat with my hot air oil burner. Is there any company that services, repairs or will come and look at my sys ... read more

cdjacobson

"Decision Time " , posted Thu 11 Sep 04:25

I'd like to thank all of you who have responded to my questions. Your input is GREATLY appreciated. I don't mean to be a pain in the rear but it is now decision time. I'm sitting in an un-aircondit ... read more

Rpfingsten

"LENNOX OR AIR EASE? " , posted Wed 10 Sep 07:02

First of all, thanks to those who have responded to my previous question. I've narrowed my selection down to 2 brands, both are heat pumps, one is the Lennox XP 16, The other is made by Air Ease. T ... read more

Rpfingsten

"Duo-Therm convert to ACE ADMH110 Series " , posted Tue 9 Sep 19:06

Frustrated!I have a problem. Sometimes the heart comes on in my 5th wheel and sometimes not. I believe it is a thermostat problem so I stopped at the Ace hardware and picked up this ADMH110 Se ... read more

RockMiner

"Heating System Design " , posted Tue 9 Sep 18:52

I need to install a gas furnace in the garage I'm living in. There are two rooms and a bathroom behind my shop which is 2 bays. Entire building is around 950 sq/ft. I want to heat the living area cons ... read more

Dann757

"Central AC pipes keep freezing " , posted Tue 9 Sep 10:51

Here's my story:Moved into a duplex about 2 months ago. When we first moved in the A/C didn't work at all, the unit wouldn't even come on. My landlords "A/C guy" is just someone who lives in ... read more

tehjrow

"what to choose? " , posted Tue 9 Sep 04:55

Hello from muggy Louisiana... have a quick question for you. My current heat pump is 16 years and and just 2 days ago went out. I don't think it's a good idea to put any money in a unit that old so ... read more

Rpfingsten

"price " , posted Tue 9 Sep 02:00

is 29.000$ a good price for 2 packaged unit day and night 5 ton and 7.5 ton, curbs,outside air dampers, t stats,crane, return and supply plenons ... read more

joselu

"defrost " , posted Mon 8 Sep 22:33

when I design the defrost system for my 3 ton, do I need to make sure the system shuts down air flow within the house during the defrost process? Or does the defrost relay take care of that? ... read more

tldoneil

"Carrier tstat problem " , posted Sun 7 Sep 17:07

I have a FV4ANF002 indoor unit and a carrier tstat CCPRH01-B on board and this number 3101N026720. The display has gone blank. It has no battery. The bfan kicks on at low speed and runs 30sec. then st ... read more

jack lichliter

"Replace Honeywell Thermostat with Robershaw 9 " , posted Sat 6 Sep 14:23

Heat pump/AC systems using Honeywell (Carrier) thermostats (T874R1384 HH07AQ170 with Q674L 1454 HH93AZ197 base). Replacing with Robertshaw 9620 series programmables.Honeywell terminal/wire col ... read more

cem30739

"Furnace and Hot Water Heater " , posted Sat 6 Sep 09:44

Hi,A few years ago, I had a separate hot water heater installed. The guy who did it left the hot water coil in my furnace. The problem I'm having and I've noticed this in the summer is the f ... read more

ptrapper65

"Air Pressure High then Low then High Again " , posted Sat 6 Sep 01:57

I have an air condition problem. When I first turn on my air condition my vents are blowing at full blast then about 1 hour later there is no air blowing but vents feel chilly. If I turn off the Therm ... read more

dgsonic

"New Trane XL16i /old furnace " , posted Fri 5 Sep 11:48:

If we get a Trane XL16i spit system (compressor/coil)installed, but keep our 14 yo Lennox furnace, will we get the expected 17 SEER?What's the price difference between the XL16i and the XL15i? ... read more

jean55

"HVAC TROUBLE " , posted Thu 4 Sep 23:59

I have trane model twv025 vertical air handler and trane xe1000 outside unit. I have to replace the thermostat with out knowing how the existing one was wired. I have 8 wires and no idea what goes whe ... read more

tskinner

"Heat pump questions... " , posted Thu 4 Sep 18:02

I am installing a Heat Pump for my father in-law and had a few questions... I am in the trades and understand most concepts...just had a few questions. It is a Ruud 4 ton 13 seer unit. 2700 square fo ... read more

nelson14

"HVAC is acting very strange " , posted Thu 4 Sep 12:56

Yesterday I got home (Condo Unit) and it was blazing hot inside. All I heard is the fan running and not the A/C. I turned it off and started it back up and the A/C ran for another 30-40 minutes. Since ... read more

evilness

"Heatpump startup problem " , posted Thu 4 Sep 12:48

1st, I am 15 years out of refrigeration and heating school. I have off and on experience. I work in a very small rural community and work on a couple of a/c jobs a year. I am doing the startup on a go ... read more

jimq40

"design question 2 " , posted Thu 4 Sep 02:34

I am designing my own air conditioning system just to see if I can, I am designing from a 2 ton through a 5 ton system can I use the same liquid and vapor line sizes or should each one be different ba ... read more

tldoneil

"Design question " , posted Thu 4 Sep 02:32

Do all gas furnaces and air handlers have the same size supply and return opens designed into the systems or are they designed around BTu? If they are different are the common sizes? If so where can I ... read more

tldoneil

"PLEASE HELP- Replacing thermostat in house " , posted Wed 3 Sep 21:31

Please help if anyone knows. I want to replace the thermostat in my house with a digital one. I do not know if my heat pump is a multi stage or single stage or if the one I brought is compatible. If a ... read more

eliteaquarian

"low air output " , posted Wed 3 Sep 20:08

when the heat or air is on there is very low output of air but blower is running good what might be the problem ... read more

dwetn2007

"refrigerant leaks " , posted Wed 3 Sep 18:58

Yes, refrigerant that is mysteriously missing has gone somewhere. Any Refrigeration systems such as your home's a/c system does not consume, burn or use refrigerant. If it is low there is a leak. T ... read more

timdecker

"refirgerant leaks " , posted Wed 3 Sep 18:54

... read more

timdecker

"General Question / Freon " , posted Wed 3 Sep 14:14:

The past week I have spoken with 4 different people who have had and HVAC representative come out to their home to ADD Freon (or what ever they needed) to their AC systems. It is my understanding ... read more

Jester23

"Trane User Manual " , posted Wed 3 Sep 09:41

Where can I find a user manual for a Trane air handler model TWE042P130A0? I am trying to figure out where the filter is located.Thanks ... read more

fishergomz

"strange response to my post? " , posted Wed 3 Sep 01:31

help!Received a very strange reply to my post from "video" did not make sense in some kind of code? Someone please help on this one and check it out for yourself.G. Swanson ... read more

garnsan

"help on correct thermostat for heat pump " , posted Wed 3 Sep 00:24

hello:Need to replace thermostat with touch screen. Would like Honeywell pro vision 8000, I think? I have heat pump with back up emergency heat all electric. has air and heat. Can y ... read more

garnsan

"Replace the air handler - or just the coil? " , posted Tue 2 Sep 17:50:

There is a leaky coil in an old Rheem 3-Ton 10-Seer air handler, model RHQA-1305B FV. Would it make sens to replace just the coil or the entire handler? What would be a good replacement, since the air ... read more

pwrcut

"Oops! Trane 2/4TEE " , posted Tue 2 Sep 16:38

All,1. I have seen Field Wiring Diagrams for the Trane 2/4TEE with R jumpered directly to BK and with R connected to BK through an optional humidistat. From this I infer that applying 24V to B ... read more

BKraengel