"Totaline P474-1050 thermostat " , posted Wed 11 Jun 23:29

I have a Totaline P474-1050 thermostat I am trying to hook up to a heat pump. It has one stage heat and two stage heat. When I turn it on the unit blows hot air but the thermostat is set on cool. Here ... read more

BJW3

"HVACR " , posted Wed 11 Jun 23:13:

I will use R 22 untill it is gone around 2040. I was intersted in the AMP draws I checked for my self a 5 Ton 13 seer R 22system it was runing 17 AMP's = to 68 60 watt Light Bulbs.I also c ... read more

AirZone

"A good resource " , posted Wed 11 Jun 22:26

Summer is around the corner and HVAC technicians are in very high demand. If you are looking for a career in HVAC go to HVACCrossing.com to view hundreds of great job listings. These jobs are with gre ... read more

AudMac

"payne model 394jaw036045 " , posted Wed 11 Jun 11:47:

air volume at registers is low.flilter is new.is there a belt at motor to fan connection? service manual avail? ... read more

mcb

"amp motor high at low cap. " , posted Wed 11 Jun 05:08

Dear allplease suggest me, I have encounter with the New chiller can not reach the design outlet temperature and motor current reach to the limit 354 amp. detail as below....The chille ... read more

methanol

"Help! AC not functioning " , posted Tue 10 Jun 22:20

I am new to HVAC so please pardon if I am completely ignorant and ask basic questions.I tried to start my AC couple days ago and it is not functioning. I have a York Diamond 90 HVAC unit in ba ... read more

NewToHVAC

"question on old rheem condenser fan " , posted Tue 10 Jun 21:46

please excuse lack of info ( you can't read it ) the unit is aprox. 20 years old , about 2 tons the problem is the condenser fan slows down but will not stop when call for cooling ends. the compresso ... read more

suntec kid

"HELP! " , posted Tue 10 Jun 21:36

I have a White Rogers type #1F82-51 I took picuters of the wire configuration before i took it apart and then my wife erased the pics and now i am up the creek! I have these wires, White, Red, ... read more

charger555

"Compressor not running / Fan hum " , posted Tue 10 Jun 18:41:

I could use some advise. This year when I switched my HAC to AC the compressor outside would not stay started. It would turn on for a few seconds and click off. I reset the thermostat a few times and ... read more

dsfritz1

"New Heat Pump runs from Noon until 800 pm! " , posted Tue 10 Jun 17:17

I had a new 2.5 ton Goodman heat pump installed in a 1100 sq foot cottage a couple of weeks ago. The house is old, has no insulation in the walls but has 2.5 inches of closed cell foam in the floor, ... read more

dwolstenholme

"fan kicks on for 10 sec " , posted Tue 10 Jun 16:43

my friend has a carrier ac unit and his fan on top kicks on for 10 secs then shuts off. He flips all the breakers then back on and it goes for another 10 secs what is wrong the??? the capacitor please ... read more

pertocan

"HEIL 5000 HIGH EFFICIENCY AC " , posted Tue 10 Jun 14:28:

THE UPSTAIR UNIT IN OUR HOUSE STOPPED BLOWING AIR. THE OUTSIDE UNIT IS WORKING FINE (THE FAN IS COMING ON). MY HUSBAND SAID THE COPPER TUBES LEADING TO THE UPSTAIRS UNIT HAD ICE ON THEM WHICH WERE T ... read more

PAW

"Haier Heat Pump Problem " , posted Tue 10 Jun 14:08

I have a 4 ton Haier Split unit about 4 years old. This summer it has began giving problems. After running and cooling the house for a while, the condenser outside will shut down. If I turn the circui ... read more

needcool

"Payne fan cycles on and off " , posted Tue 10 Jun 13:05

Today, I keep hearing the fan in my Payne Heat pump/AC unit cycle on for about 15 seconds and then off for about a minute, even after I turned the unit off on the thermostat control. It is about 5 ye ... read more

mbell

"thermostat stopped working " , posted Tue 10 Jun 11:49:

I have a White-Roger thermostat and it just stopped working all together. I am wondering before i go buy a new one besides the breaker is there another fuse that i should be looking at to see if there ... read more

charger555

"Honeywell Thermostat T6069A " , posted Tue 10 Jun 11:31:

I am trying to install Honeywell Thermostat T6069A with replacing Honeywell T6069A1065 which had six wires. The new one only had five wires, the yellow connection wire is not included. Try to match re ... read more

A_Y_K

"replace Ruud rooftop packaged unit " , posted Tue 10 Jun 11:23

Hi,I have an old Ruud rooftop packaged unit. Model number URGF-12E47-JKR. I want to replace it. Anywhere I can find more info about this model? Or where I can buy a new one?Thanks, ... read more

tsunau

"Coleman HP " , posted Tue 10 Jun 10:24

Working on Coleman HP model3724-911. Coil on reversing valve is bad. Cannot fine on anywhere. Anyone have any ideas?? It is 240V with opening on one end 1/2" and other 1/4". Any help appreciated. Unti ... read more

esquire

"Air Cond does not seem to satisfy itself " , posted Mon 9 Jun 23:22

I have an American Standard 5 ton unit that is 3 years old and it never appears to satisfy itself. I live in Texas where is has been in the high 90's. My home was built in 1979 and the insulation in ... read more

larbec7

"janitrol fuses " , posted Mon 9 Jun 22:07

im wanting to know where i can find a fuse that might have been blown while installing a new thermostat on my janitrol heat pump or as unit ... read more

bigjp

"Trane xl 80 Compressor problem " , posted Mon 9 Jun 21:52

My trane xl80 compressor is making a buzzing noise and the fan is not running.How may I trouble shoot this problem? ... read more

Stayak

"H-W L8124 & Run-hour meter " , posted Mon 9 Jun 21:35

Have a h/w boiler for winter heat and dhw year-round. Would like to connect an ac run-hour meter to record run-time during summer for dhw needs. Plan to connect across B1 and C2 on the L8124A. Looks t ... read more

DaveSPE

"73 fault message " , posted Mon 9 Jun 20:46

I am getting a 73 fault message (contactor fault)on my Bryant AC unit, and ideas? ... read more

jw1

"AC Lines with layer of ice " , posted Mon 9 Jun 16:43

Everytime my AC kicks on the lines in the house freeze up, literally. There is a thick layer of ice on them and the house is not cooling. What is causing this??? ... read more

alisha25

"Trane XL1200 5 Ton ??? " , posted Mon 9 Jun 14:39

I am working on a 1990 Trane xl 1200 5 Ton unit. It has been worked on numerous times before obviously. I have 3 capacitors on this unit. One I am certain goes to the fan. The other two I am assuming ... read more

kaj58

"Question - Is there a dual system? " , posted Mon 9 Jun 14:14

Hi,Is there manufacturer that has a zone heat pump or a/c system that uses one compressor and two evaporators? If so does anyone have any experience with these? how well do they work? read more

falconrunner

"Condenser fan motor hook-up " , posted Mon 9 Jun 12:27

Anyone know how the fan motor is hooked up to the circuit board on an outdoor ac unit? I can read the schematics but they aren't so clear and I hate to guess. ... read more

jw1

"Transformer installation " , posted Mon 9 Jun 11:09

Replacing 25 yr old transformer on Rheem. The new unit has been updated , but wires don't match.Old unit-- 2 yellow wires on one side. Other side one red, one black, and one unused blue.New un ... read more

mustang70

"Switching from Baystat239A to Honeywell 7500 " , posted Sun 8 Jun 22:04

Ok, the only wireing info I can find on the net is for the 7400. I have the 7500, and so far am not producing cool air.I have the following hooked up: (Baystat - Honeywell)X2 to ER to ... read more

RjSteed

"5 wire replacing 7 wire, help! " , posted Sun 8 Jun 18:41

We have central a/c & standard central heat (not sure what the technical name is, not a furnace & not a heat pump). We are trying to replace our Maple Chase (item 90520) 7 wire thermostat system with ... read more

princsskik

"CONDENSER WONT SHUT OFF " , posted Sun 8 Jun 18:40

I am having issues with my ac condenser. It never shuts off.The ac (furnace) shuts off however the condenser is still running constantly. I have a johnstone, which i have never heard o ... read more

cybermom

"Teledyne Laars Mini-Therm II ignition Problem " , posted Sun 8 Jun 18:04

... read more

donlor18

"Honeywell RTH 7400 " , posted Sun 8 Jun 17:42

I have a Trane Cond. Unit # TWB0030. Low Voltage wire are: BLK.YL. BlueBrownOR.RedMy stat has:CGYO/BRCRAUX.ELCould anyone tell me wh ... read more

vol0398

"We're MELTING. A/C wiring not connected. " , posted Sun 8 Jun 17:38

This is our first warm weather season with our new home. At the beginning of the winter we had our furnace oil supplier come in for an inspection so we would get the proper oil. When he was here, I ... read more

Tragic81

"A/C not wired - 29 Celcius in my house. " , posted Sun 8 Jun 17:09

This is my first summer with my new home. At the beginning of the winter he had our furnace oil supplier come in for an inspection so we would get the proper oil. When he was here, I mentioned that ... read more

Tragic81

"Concord and AirEase " , posted Sun 8 Jun 13:33

I am currently looking at replacing my condensor, coils and furnace. I was given a quote for replacement with a Concord condensor and Airease furnance. Any one have any experience with these brands? ... read more

marcs2

"HELP....Was the Right Part Installed? " , posted Sun 8 Jun 12:03

We have a Trane XE 1000 and the Technician said that the Defrost Control Board (#WW28X0328) went out. He replaced it with #CNT05001. It doesn't seem to be cooling right so we started doing some chec ... read more

MzDeb

"Baystat 239 to Hunter 44860 " , posted Sun 8 Jun 11:20:

I currently have a Baystat 239 and I need to connect to a Hunter 44860. I have read the forums, and I believe the diagram for the baystat 293 IE:

"dang chimpmunk " , posted Sat 7 Jun 23:56

Fri one of the hottest this year. A co-worked found a chipmunk living in the outdoor unit.Well he was hungry chewed right through the wires shorted out the transformer and relay .I changed them but th ... read more

burnerman

"Fixing Mom's a/c compressor & need fan motor " , posted Sat 7 Jun 23:11

The root cause to my Mom's a/c problem is a bad fan motor in an old Montgomery Wards compressor. It was hung vertically by 4 cables. The motor died after two cables rusted out causing the motor fan ... read more

FalconRunner