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Furnice shut off

Our furnace is maybe 5-7 years old. It just shut off and won't come back on. I checked all the breakers... possible problems?

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Need aalot more info,,,gas or electric furnace is it doing anything at all,,when u call for heat?

Posted on Oct 25, 2008


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E1eh-017ha ele.furnace fan shuts down then the heating elements get4 times hotter turn breakers in furnace still hot sets off fire detector. You have got to kill main breakers

Dont really understand .Is it a furnace with electric heat ,if it is then Check to see if contactor or relay is stuck closed ,also you heating element should not get so hot there should be a limit switch to shut heater off .Maybe bad limit and bad relay .Your electric heat should shut off when fan shuts off

Feb 15, 2018 | Heating & Cooling

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Have an old furnace wont turn on never had a problem before

Old furnace won't turn on. Well I've had this problem it turns out that I had to go replace the thermostat usually another problem is at the main switch right next to the furnace has a fuse it's possible to have a bad fuse. Another possibility is that the switch is off. Circut breaker off or tripped. Check out the battery in the thermostat replace it yearly if older than you may consider the replacement to A digital thermostat be aware of the possible Mercury thermostat oldest models Mercury is deadly !!!

Oct 28, 2017 | Heating & Cooling

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We have a Coleman Electric Furnace Serial # AOL6042086, Model # AHP36C3XH21A and the fan runs constantly, will not shut off. We have replaced the thermostat and just replaced the control board. We h

I wish I was a furnace expert but I will give a push in the right direction. When a gas/electric fan runs it has two speeds. When you turn on the FAN ON switch it should run at the slower speed. If it doesn't turn on or turn off again when you turn it back you have a wiring problem or a thermostat problem. Make sure the thermostat is compatible with your unit and wired properly (on both ends). The other time the fan runs is "in session" when heat or cooling is applied to the system. It should run until the system finishes the cycle then a bit more (30 seconds or 1 minute) to blow the treated air completely through the ducts. If it doesn't stop then you may have a bad fan time delay or relay. Check parts for your model and various appliance repair site online.

Nov 25, 2014 | Coleman Mobile Modular Home Electric...

1 Answer

My humidifier does not shut off when the furnice cycles off is this normal?

furnace, " hot air", or boiler.A furnace will take moisture out of the air. Which means your humidifier will run to put moisture back.

Apr 16, 2011 | Humidifiers

1 Answer

Furnace is 7 years old. Will not stay running for more than 5 min. Will start up again after shutting off and then run for another 5 min. Suggestions?

Check the air filter. Jump out thermostat to see if it stays running longer, if so replace thermostat. Make sure all return air ducts are clear of debris. If furnace has a Fan/Limit switch, make sure tabs are set at 100, 140 and 200. Sounds like something may be heating up and shutting unit off till it cools back down.

Jan 03, 2011 | Ruud Heating & Cooling

1 Answer

Can i shut down the gas furnice to change the air filter with out touch the temotast??

Yes you can and if originally installed by code ther
should be either a fused disconnect or a breaker mounted on the furnace. The fuse will have a cover
and a black switch below or above it.

If nothing is there but romex wire cable, then it is
hard wired in and most likely will have to be shutoff
at the fuse or breaker panel.

It is more dangerous to turn off at the fuse or breaker
panel. I recommend shutting the thermodtat to
the off position. If the furnace is within 10 years
old you could remove the top door and then lower door. The lower door when in place holds a switch
in that lets the power pass through it, when removed
your furnace should not operate.

Take my advive3 and do the simple thing and turn
the thermostat to the off position.

Jan 16, 2010 | Dayton Gas Furnace Heater

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Goodman GMP Furnace problem. Original problem is

Good one! Is the flame getting to the flame sensor within the few seconds? Maybe a good cleaning of the burners or flame tray would help. 1.3 ma is enough for the flame rod to tell the board to stay on. Re-do all the ground connections both at the board and furnace cabinet to be safe. Check the polarity of the power going to the furnace. What are the chances the second board is bad?

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Lennox furnace 17 yeanrs old. flame comes on and the shuts down sometimes right away some times in a few minutes. We have the furnace go down to 58 at night. It takes all day to get back to 67.

Sounds like a dirty flame sensor.
Also 9 degrees is a large swing to recover. Most specialist will advise no more than a 5 degree set back, otherwise recovery time eliminates any savings you may achieve.

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1 Answer

Code 32 when wind blows

Hi and welcome to Fixya. I believe that the wind is affecting the draft. What I would recommend is to install a cap on the flue that is similar to a weather vane in that it rotates to block the wind from creating a downdraft in the flue. Some times depending on the direction and strength of the wind it will come up over the roof peak and then down the flue. A regular fixed cap may work too. You should be able to purchase one at your local hardware store. Please let me know if this was helpful. Good luck.

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