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A carrier furnace

This furnace when set on heat the fan starts but the glow plug never comes on and the just shuts down and nothing will happen

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Re: a carrier furnace

If your are talking about a combustion motor, not the actual blower that blows into the home, it is not satisfying your controls going back to the board. There is a vacuum module that has to satisfy first. If all that is satisfied, you may have a bad ignitor. Do not touch the ignitor part of a new one with your fingers.

Posted on Dec 02, 2007

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My blower on my carrier furnace unit won't turn off? a/c or heater doen't turn on.

gas furnace??? check the start capacitor, put unit in ac mode and see if fan comes on(switch fan to on at thermostat) if it does not a fan problem or capacitor problem. when in cooling mode thermostat controls fan, when in heating mode, furnace controls fan

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Carrier 58STA/STX furnace false starts even when off or temperature set lower than current.

Is it possible the drain is plugged? The newer furnaces have a moisture drain and will shut down if they are blocked., shutting them down and restarting will reset fault, but will come right back if not fixed.

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There is a pressure switch near your draft inducer motor that needs to close when draft inducer motor is running. Verify that the switch is closing. If it is not closing, you might have a problem with either the switch itself, or there could be some sort of blockage in your flue. I would start with the switch first. This switch has to "prove" before it will allow anything else to happen. The loud click could be from your switch or your gas valve. If the switch is closing and nothing else is happening, it could be a problem with your gas valve or HSI.

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1 Answer

Gas Furnace is not heating anymore.

the fan you hear come on at a call for heat is most likely just the inducer motor. the click you hear is probably the relay for the hot surface ignitor which should glow red, then in turn ignite the main burners. your going to have to determine if the ignitor is coming on. if it isnt the ignitor is bad and will need to be replaced. if it comes on and than shuts off after a few seconds the ifc board is probably at fault

Apr 09, 2009 | Air Conditioners

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Furnace runs OK, but blower runs again a few seconds later

Could be a defective thermostat in the plenum.
When a gas furnace shuts down the fan(blower) will run until the plenum cools to the safe range. Usually 1 and 1/2 minutes.
Intermittent operation is a defective thermostat or relay.

Mar 11, 2009 | Carrier Air Conditioners

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Furnace runs but won't ignite.

Error code 12 is blower on after power up. Meaning: after you turn on power to the furnace for aprox. 60-90 seconds the blower will run. The blower should then shut down and the furnace should go through the start up process, providing that the thermostat is set for and calling for heat. If the furnace fails to start after blower shut down there should be a new fault/error code. However if the blower continues to run longer then 90 seconds and continues with the same fault code more then likely the circuit board is bad. Please let me know if this was helpful and give me a rating. Good luck.

Feb 08, 2009 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Furnace stopped working.

HI!!! Looks like your ignitor has stop working..change your glow ignitor and you should be fine..Good luck..

Jan 04, 2009 | Carrier Air Conditioners

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