Furnace turns off for 1-2 minutes, blower continues, furnace kicks back on
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Furnace turns off for 1-2 minutes, blower continues, furnace kicks back on
I just noticed this yesterday, but my furnace will be going nice for awhile and then I will hear it kick off, but the blower continues to spin. After a minute or two, the furnace kicks back on and continues on it's merry way. It's occurring every 15-20 minutes right now.
This is a gas furnace with a newer (2 weeks, maybe) air filter.
This is a gas furnace with a newer (2 weeks, maybe) air filter.
#2
Best place to start is to determine if the thermostat has reached it's set point and is shutting off. Don't simply go by what you see for temperature readings at the thermstat. You must find out if the voltage is being killed through the thermostat or not. There are connections at the furnace where you can determine this, with a multimeter (voltmeter), right at the moment the flame shuts down.
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Ill bet it just started this when it go real cold out side. It reached the tstat set for heat. The blower ran cause the furnace was still warm. Just about the time it should shut off the tstat calls for heat again. Or if you have AC is the coil clean if not the furnace could shuts off on heat limit
#5
If you DO find your tester, be sure to confirm that it works and records voltage and ohms, before simply putting leads on the furnace and going, "Nope...it's dead".
#6
Ill bet it just started this when it go real cold out side. It reached the tstat set for heat. The blower ran cause the furnace was still warm. Just about the time it should shut off the tstat calls for heat again. Or if you have AC is the coil clean if not the furnace could shuts off on heat limit
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Pulled it apart and the coil are clean, shockingly clean, as a matter of fact. However, with the cover off of the coil and the furnace going, I couldn't get it to reproduce the issue.
EDIT: What am I looking for from the thermostat? I have 7 wires, which ones should I be probing?
EDIT: What am I looking for from the thermostat? I have 7 wires, which ones should I be probing?
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However, with the cover off of the coil and the furnace going, I couldn't get it to reproduce the issue.
Then that let more air out and you didnt hit limit WHY WHY Is the duct all ok and open????
Then that let more air out and you didnt hit limit WHY WHY Is the duct all ok and open????
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Also, the furnace has been running fine for 20 minutes. The only thing I could assume was I "reset" the thermostat, since that was the first time it was turned off since October