"Concord 80 not igniting (gas furnace) " , posted Sat 4 Oct 10:09

We have a Concord 80 Plus Furnace and when we turn it on (via digital thermostat), we can hear the furnace spool up (and smell gas if we're in the room where the furnace is located), however, the gas ... read more

Nand12

"Light my furnace " , posted Sat 4 Oct 03:32

I have a GE furnace and I have no Idea how to light it and I cannot seem to find a user manual online can someone please help me. The model number is blu045e924b1 and it is a forced air furnace ... read more

jai232

"Mold in air handler " , posted Fri 3 Oct 23:05

I have a Bryant air handler (FA4ANF042). The condensate pan had cracked at one time and soaked all the insulation. The pan was patched and has aparently been leaking some since. Anyway, is it pract ... read more

woodie234

"comfortair furnace shuts on and off " , posted Fri 3 Oct 22:06

My Comfortmaker RPJ2 gas funace is 14 yers old, installed new with house. Late in the winter season last year it began to 'short cycle' -- burner would come on, then shut off before blower could engag ... read more

RJRB

"Amana 90 air command furnace ignition ???? " , posted Fri 3 Oct 22:01:

We just turned on our furnace. It fires up the first time and runs for about 5-10 minutes, then turns off, but when it tries to fire up (start again). It glows for about 17 seconds, like it wants to ... read more

shane103high

"Furnace won't click on " , posted Fri 3 Oct 20:50

Hi - Posted yesterday under separate post about not being able to find pilot light, but got that under control. End of last winter, the thermostat didn't seem to be working (an old Honeywell dial mer ... read more

TLHunter06

"Honeywell T8132C Programmable Thermostat HUMS " , posted Fri 3 Oct 18:46

My heating contractor just installed a new boiler and changed the wiring on my heat and cool thermostat from four wire to five wire and now my thermostat hums, constantly, but only when in the heat po ... read more

SeeUSA

"Cold air only " , posted Fri 3 Oct 17:21

I have a Heil NULK100 1988, 80% efficient, electronic ignition. I started the furnace for the first time this season last night. Worked just fine. Turned the thermostat low and turned it up this morni ... read more

KDw

"Carrier 58sx Pilot won't light " , posted Fri 3 Oct 12:35

When my system calls for heat , everything starts as it should and I get spark, but the pilot light won't light.If I light the pilot myself , the pilot will stay lit and fire up the burners ,then ... read more

lowbudget

"smell of gas " , posted Fri 3 Oct 12:24

After the furnace has been on for a while, you can smell gas, or the cabbage smell. We checked for leaks around the hoses and didn't find any. ... read more

alta84

"Fan Speeds " , posted Fri 3 Oct 00:23

I have a Ruud modulating furnace that kicks on high right away, I thought it was susposed to start on low then ramp up if the stat isn't satified. I have a Rheem contour control stat that came with t ... read more

tpgroceman

"Clueless here.....and cold!! " , posted Thu 2 Oct 23:47

Hi all,We recently moved into this house a couple months ago and now we want to turn on the heat, but we are running into a problem. We have a Carrier 58ACA o8o 17116, series 170...i hope that see ... read more

staybek

"Bird in ventor fan info for techs " , posted Thu 2 Oct 19:32

Have had lots of them get into mid efficiency furnaces. Had one small sparrow (on drugs?) fly into the 3" venting of a high efficiency unit and expire in the ventor fan today. Thought I had seen it al ... read more

yuri

"TXV question " , posted Thu 2 Oct 19:32

I am trying to diagnose a problem with an R-22 system that was just retrofitted to R-410a after a major compressor burn out. The system has a 4 ton evap coil and 3 ton TXV and condensing unit. The sys ... read more

allencolella

"Ruud Silhoutte-Flame sensor connection " , posted Thu 2 Oct 19:17

I had to repair the furnace blower brackets. They broke.During this repair I accidentally pulled the flame sensor wire from it's home. I cannot figure out where it goes! FS is not listed in ... read more

Lordlindsey1

"Carrier Crusader " , posted Thu 2 Oct 19:07:

Carrier Crusader gas furnace won't start.Tried to turn the furnace but only the fan only runs for a moment then shuts down. If I flip the kill switch off and on it starts up for a moment the ... read more

dsmall

"Two questions on new Rheem furmace " , posted Thu 2 Oct 16:52

A week ago I had installed a Rheem 90+ modulating gas furnace (RGFD) with modulating thermostat (411MDMS), and a Rheem Classic series ac (RAPC). 1. There is a transformer hum coming from the ... read more

phil2347

"Heat-Pump Myths " , posted Thu 2 Oct 15:27

I had heard so manny times old/experienced Tech's saying during winter time " we need to make sure the low pressure ( True-Suction port ) is above or close to 32 Degrees Farenheit ( excuse my English) ... read more

rooky

"Furnance won't produce heat " , posted Thu 2 Oct 14:01

Hi All,I broke down and turned my heat on last night, but couldn't get it going. Here is what I did and what I checked.I made sure the pilot light was on. It was.I checked the thermostat ... read more

lemon

"Where to find pilot light and how to light? " , posted Thu 2 Oct 11:15

I have a Weil McLane EG furnace (gas). I had to shut off the main gas valve to it over the summer to bomb my basement. I have the main gas valve turned back on, but now I need to re-light the pilot. ... read more

TLHunter06

"Trane XE78 problems " , posted Thu 2 Oct 11:11

I have a Trane XE78 Model TDD080C936A2 with a White Rodgers Model 50a50-405 control unit. The furnace will intermittently come on then try to light and then the flame will go out but the furnace blow ... read more

robina320

"VAV box for residential basement " , posted Thu 2 Oct 08:15

I have gas fired forced hot air for my house and would like to install some type of VAV box for the basement area. I guess I would want it temperature activated. I will only want it opened when im dow ... read more

snovecha

"fuel oil boiler won't stay lit " , posted Thu 2 Oct 00:05

I have an old boiler (lennox-honeywell) that runs on fuel oil. I'm trying to get it going for the first time this year but when I push the reset button it won't stay lit. The flame comes on for a coup ... read more

rjostrow

"Rheem RHQA-08108 " , posted Wed 1 Oct 23:49

Hello,I need to replace the thermistat for a Rheem RHQA-08108 heat pump. Is there a manual online where I could find what the connections should be?Thanks ... read more

mellery

"how do I get to my weathermaker 8000 coils? " , posted Wed 1 Oct 20:42

I was told my coils need cleaning on my weathermaker 8000 unit. The duct cleaning person who came out brought me a picture of them when he was in my attic inspecting it. They were filthy and he wanted ... read more

mtrainum

"Water heating " , posted Wed 1 Oct 19:35

HiI am brand new here, i just bought a house that is water heated, i have always had forced air.The system is original from the 50'sI had it checked out by a professional to start ... read more

dano_61

"SECO TA2000 to Honeywell Focus Pro 6000 " , posted Wed 1 Oct 18:23:

Hello all. I'm replacing my aging thermostat with this new one, but I don't have the wiring sheet for the old one. I'm trying to figure out where the wires go. Here are some pics of the old unit:< ... read more

superorb

"Carrier Weathermaker Infinity Error 42 " , posted Wed 1 Oct 11:01

Our furnace is displaying error 42 - Inducer outside valid speed range. I think this is the purge fan motor and is very easily accessed for replacement. Is a motor something I should try myself with ... read more

Steve N

"Armstrong/ Lennox G1D93AU " , posted Wed 1 Oct 09:22:

Green LED at "Smart" gas valve not flashing, but staying constant on when attempting to power up. Is there supposed to be a steady flash (heartbeat) in standby or call for heat mode? ... read more

billy5812

"ruud thermostat " , posted Tue 30 Sep 21:57

I am changing out ruud 41-20804-16 thermostat to a braeburn 2200. I have wires connected to g r b y w2 x e. Do you know how they would transfer to the braeburn? It has w2 g e y c b o r. It is a multi ... read more

bertie

"gas furnace will not stay lit " , posted Tue 30 Sep 20:48

I have a ICP heat pump/gas pac. in the heat mode the burner will light & only stay lit for 10 to 15 seconds. The inducer fan starts the ignitor glows & the pilot will light & the main burner will ligh ... read more

time

"Carrier 58MVC or 58MXB " , posted Tue 30 Sep 19:21

It's time for me to replace the 20 year old LP gas sucking Basement Monster - it's had some serious issues over the past few years. The local sales guy presented quotes for the subject two furnaces - ... read more

Tang

"Ton. too high. Is slowing down the blower OK? " , posted Tue 30 Sep 13:49

I am purchasing a new house, 3.5 stories, 2200sq ft. (tall, skinny, downtown home).The builder originally had one 5 ton unit to run the house. They added an additional unit (I'm assuming becau ... read more

Adam Houston

"No power " , posted Tue 30 Sep 12:41

I had a bad breaker and wire which caused a power surge to my central air and furnace. I now have no power to my air or furnace. I have a Goodman furnace and Heil air unit. What is the first thing I ... read more

powernot

"Goodman Furnace Code 8? " , posted Tue 30 Sep 11:47

Hey everyone. I installed a goodman GMH80453 the other day. On the day of install I started and ran it twice with no problems. Now it won't run. Series of events are....Turn up stat to kick it on, ind ... read more

short1

"Lennox G81051 / Honeywell RTH2300B " , posted Tue 30 Sep 02:25

Hi, I hope you can help. In looking at my relic of a furnace I have R W C Y G connections. On my new thermostat I have G W Y R Rc connections and an O/B connection that says not used. R/Rc ar ... read more

Trav12

"OPERATING PRESSURE FOR A FURNACE OPERATING ON " , posted Mon 29 Sep 22:39

COULD ANYONE TELL ME WHAT THE OPERATING PRESSURE IS ON A RES. FURNACE FOR L.P. ... read more

DWAYNE1991

"Help! Furnace, A/C, Humidifier, Filter Quote " , posted Mon 29 Sep 21:16

Hello All, I've gotten the following quote and after searching the web for days, can't determine if its reasonable or not. I would really appreciate some feedback about the choice of equipment and ... read more

CompuPsych

"Replacing TrolATemp 3-wire controller " , posted Mon 29 Sep 18:36

I'm trying to replace my TrolATemp Mastertrol Mini-Zone MM-3 control panel, without having to also replace my Chronotherm III thermostats. It appears my thermostats are 3-wire. Does that mean I need ... read more

Pickle

"help " , posted Mon 29 Sep 17:41

I have a 5 ton tempstar 13 seer condenser with a rheem 5 ton air handler the coil has a tvx valve i get no psi reading on the suction line and 275 psi on the liquid line the gauges are in good working ... read more

amp109ek