"Lennox G8-165 furnace " , posted Tue 21 Oct 21:27

Need help in replacing, or re-wiring, Lennox G8 series furnace fan control relay (original part #L4068). Lennox states the relay is no longer available and I am having trouble locating one to replace ... read more

terri_07

"Buderus ? ? " , posted Tue 21 Oct 20:46

I have just installed a Buderus with Logimatic, it does not make heat quick enough or so it seems. I have two zones both have programmable thermostats, I have them set to turn up the temp about one h ... read more

MOP

"replace thermostat " , posted Tue 21 Oct 20:27

Did anyone ever wiring RTH 7400D (programmable thermostat) to Carrier HP (FB4ANF036)? I currently have Carrier's non-programmable Thermostat (TSTATCCNHP01-B) I am really stuck. please help! ... read more

Bah

"Noise intake on new furnace " , posted Tue 21 Oct 20:23:

Hello everybody!First, I introduce myself: I'm a novice in furnace.I live in an two level townhouse. Recently the 33 years old furnace was replaced with an similar unit after startup the surpr ... read more

onosan

"wired " , posted Tue 21 Oct 18:44

I bought a miller furnace from a trailer dealer but when I got the furnace all the wiring was disconnected were can I find a wiring diagram to rewire the furnace! ... read more

paintshop

"Help! Furnace won't ignite without fan on. " , posted Tue 21 Oct 17:01

My furnace runs the AC perfectly, however when the heat tries to kick on it makes lots of clicks and you can smell "plastic". However, if I'm running the fan and then the heat turns on, it ignites ri ... read more

Ixnay888

"Honeywell VisionPro 8000 install problems " , posted Tue 21 Oct 14:47

Hello i have a vision pro 8000 seriees thermostat from a previous apt, we just moved into a house and i'm pretty sure that we have a 1heat/1cool unit but i'm not 100 percent. The furnace is a carrier ... read more

NickCampagna

"Carrier WeatherMaker 8000-No Heat " , posted Tue 21 Oct 14:37

Strange but I don't seem to understand what is going on here. This unit has not been used since last winter and was fired for the first time yesterday. The electric ignition is working as I think it s ... read more

woodly1069

"no power to control board " , posted Tue 21 Oct 14:20

My mother has an old Ruud (1997) with a IFC #1068-300. At first i realized that i had a gas pressure problem as there was only a low pressure regulator at her tank. So i put a high pressure regulator ... read more

heyblue46

"rudd gass furence " , posted Tue 21 Oct 13:57

i keep getting flame rollout switch code when heater tryes to start it would run for 30 secs then cut off but now nothing? any help? ... read more

philzone

"Rattling air handler? " , posted Tue 21 Oct 12:52

So the past two nights I have been woken up to rattling sounds coming from the air handler closet. I have an older Lenox heat pump and just recently started running the heat.This noise does no ... read more

Cembor

"Carrier 58RAV "codes" " , posted Tue 21 Oct 11:02

I've seen in several posts of reading codes? how and where are these codes read ? ... read more

Troy992

"BAYSTAT339 programming to Honeywell RTH7400 " , posted Tue 21 Oct 10:31

We recently installed the honeywell RTH7400 (5-1-1) programmable t-stat replacing our VERY OLD Baystat339 t-stat. We have about a 20 yr old Trane Heat Pump and now nothing is working. We think ... read more

krowan

"Lenox G40uh(X) Hunter 44260 " , posted Tue 21 Oct 09:30:

I have two of the Lenox G40Uh units one that is a four wire on the thermostat (upstairs unit) and one that is a five wire unit downstairs. I'm confused because both systems are gas and are the same w ... read more

AtlantaGuy

"Help please. " , posted Tue 21 Oct 09:17

I have a Rudd heat pump model # UQHA-1215J and air conditioner model # UPKA-o30 JAZ. I am trying to install a new digital thermostat but cant figure out which wires to install where into my rietemp 6 ... read more

teach32

"Crown Boiler shuts off prematurely " , posted Tue 21 Oct 02:18

Hello, I have a Crown forced air furnace (model # MDA 120 NH5R) that shuts off before reaching the set temp. Once I "flip" the on/off switch on the furnace, it will restart. I can see the flames once ... read more

dag38

"A terrible lennox install....... " , posted Tue 21 Oct 00:30

I have improperly vented Elite Series Lennox G51 Gas Furnace. The exhaust vent runs 90 degrees and exits below a bedroom window. (Yes, we had a CO2 incident as a result of a open window :( The flue ne ... read more

sailmon

"hunter replacement thermo stat " , posted Mon 20 Oct 21:59:

I am trying to replace an old thermostat, I have purchased a Hunter brand replacement...I have four wires red green blue whitemy furnace is Heil and gas operated I ... read more

kimp3

"Heat Pump Fan not running " , posted Mon 20 Oct 21:28

Hello,I have a Goodman Heatpump. I noticed that the outside unit's Fan is not running. The unit is making a small humming sound all the time. When the thermostat calls for heat, I hear a sh ... read more

akv

"Furnace wont lite " , posted Mon 20 Oct 21:05:

Hi, I have a 2004 model furnace that hasn't been run for a couple of seasons. it is a HEIL model #h9mpd075f12b1. The furnace was originally set up with a 500 gal propane tank.I bought this camp ea ... read more

toadlicker

"Trying to reinvent the wheel and need advice " , posted Mon 20 Oct 21:02

I have a Goodman 80% efficiency Natural Gas Furnace (2 ton) 45,000 BTU, with matching A/C coil and condensor. It is only a couple of years old and I am moving, and I want to take it with me. Where I a ... read more

retrofitrehab

"Goodman GMNT 100 failed ignition " , posted Mon 20 Oct 21:01

Hi All - I stumbled across this site while trouble shooting my Goodman GMNT100-4 furnace and thought I would give it a try. This is a used furnace that I had installed in my workshop (professional ins ... read more

SteveK46825

"no power at thermostat " , posted Mon 20 Oct 18:48

hey sun morning the trane electric furnace or heat pump only would come on in emergency heat so i flipped it back to regular heat and it would come on.I have no power at the furnace where my wires co ... read more

supertrucker35

"Erratic Ignition " , posted Mon 20 Oct 17:34

When my furnace kicks on it sporadically fails to ignite the main burner even though I can clearly see the pilot flame functioning. If it fails to light after a few seconds the pilot light or pre-igni ... read more

xcsm

"Variable speed fan? " , posted Mon 20 Oct 16:03

Our 30 year old heat pump konked out and we are replacing it with 3-ton, 13 seer Bryant. To replace the whole system (including inside unit to bring things up to code), the contracter quoted us about ... read more

novice2

"Carrier 58RAV " , posted Mon 20 Oct 13:37

Furnace wont light, glow igniter comes on but no gas from orifaces? kinda like the gas valves is bad maybe? ... read more

Troy992

"Vibrating Furnace " , posted Mon 20 Oct 13:28

Hi, I have a 15 year old Coleman Furnace. It has performed well for years and continues to do so, but I have a slight problem lately.I noticed the ductwork is shaking a bit after the burner ... read more

jsandpc

"I have a Lennox gas heater " , posted Mon 20 Oct 13:19

I have a Lennox Heater this winter when turning it on i came to realize it made a loud chattering noise. I had someone come out and give me a ridiculous price on it. On the sheet it says my gas pressu ... read more

Brandi

"Honeywell RTH6300B and convector: heat problm " , posted Mon 20 Oct 12:08:

Recently I replaced an old Honeywell ChronoTherm with a Honeywell RTH6300B, wired to an apartment convector (blows air past cold water in summer, warm water in winter).Red wire to R terminal ( ... read more

hoch

"1990 Amana HiEfficiency Gas Pack heating " , posted Mon 20 Oct 11:43

Hey...the heat is not working on our gas pack...we've checked the ignitor switch, as that has been a problem in the past, but this time,no. You hear it come on, but it doesn't blow air, hot or cold. ... read more

ozarkgirl

"Trane tstat no power " , posted Mon 20 Oct 11:36

I have a Trane heat pump with gas backup yesterday I was checking the Gas furnace to make sure it started Ok I switched it to Emergency heat and turned it up 2 degrees and the Thermostat went blank an ... read more

walker45

"Trane XL 90 blower not shutting off " , posted Mon 20 Oct 11:27:

Hello,We have Trane XL90 furnace that operates properly until it heats the home to the appropriate temperature. After that the blower continues to run. I have been told that it is probably the ... read more

indyhvac

"Apartment heat not working " , posted Mon 20 Oct 09:46

I got home last night after a weekend vacation, and dialed my thermostat to 68 and turned on the heat. The unit started up, blew warm air for 5 mins and shut off, but it never came back on. I tried tu ... read more

Chicago

"NEW GOODMAN INSTALLATION " , posted Mon 20 Oct 09:18

New Goodman 115 btu furnance runs perfect 10 mins to 30 mins then shuts gas valve and flashes code 3.Checked and rechecked all drains, flu ect, all ok and condensant draining perfectly.However the pre ... read more

TIMPAT777

"utica boiler control " , posted Mon 20 Oct 08:17

I have a Utica boiler with four zones, three for heat and one foe domestic hot water. As the boiler comes to the end of a heating cycle, the unit will cycle on and off sveral times. The exhaust fan an ... read more

ricnol

"goodman: light flashing quickly " , posted Sun 19 Oct 20:32

code says 'twining' wrong...switch transformer secondary leads. it's impossible, they are different sizes...but did it anyway and it didn't change anything.I'm open to suggestions.PS ... read more

rix4

"wood boiler furnace " , posted Sun 19 Oct 20:21

I am installing an outdoor wood boiler.I wired a two wire t-stat up to the existing furnace at Red and Green.with the existing t-stat turned down so there is no call for heat and the wood burner t-st ... read more

oldmangobles

"Central AC transformer wiring " , posted Sun 19 Oct 19:49

I have a rheem ac system from 1989 no problems with it only issue was with thermostat i have a ct8775 digital round thermostat thermostat works fine only problem is it was reading wrong inside tempera ... read more

Rschrei518

"newbe question " , posted Sun 19 Oct 19:24

so i just bought my first house and dont really know much about furnaces, i was relighting the pilot light and i noticed that when the furnace kicks on there is cold air blowing all around the inside ... read more

steve-o-n

"2 speed fan kit for Lennox model # G8Q3-120-1 " , posted Sun 19 Oct 18:55

My Lennox G8Q3 heats my 1700 sq. ft. rancher and was installed circa 1981.The furnace is located in the garage at one end of the house. The bedrooms are located at the other end of the house a ... read more

Hughman