furnace fan not working on auto

If the breaker has tripped turn it back on then switch the thermostat to On If the breaker trips. My furnace blower turns on and off just fine with the t-stat fan switch in the auto position but if I want to just turn the blower on manually it wont work.

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I currently have an issue with fan not turning on automatically when in Auto Fan mode while in Heater mode.

. The thermostat is just a fancy switch but your furnace must have the necessary. If your furnace fan wont turn off your thermostat may need to be switched to AUTO the limit. The next thing that you should do if your furnaces blower isnt turning on is to check the circuit breaker.

It has worked in the past. When the furnace fan doesnt turn off it is important to take appropriate action. Check the circuit breaker.

Check whether your furnace is switched ON and producing heat as the fan only runs in AUTO mode during the heating cycles. Is your furnace blower motor not working and there is no air coming out of your vents. The second-most common problem that causes your furnace to not work despite the fan blowing is a malfunction with your high limit.

If so it should come on. The High Limit Switch. The fan works just fine when set to AUTO with the AC.

If so check whether the fan is switched ON on the thermostat. Furnace fan not working on auto. If you have a green wire it would connect that red power to the green activating the fan.

Look into your air filters housing and check the markings on your filter. Perhaps your blower motor has burnt out and you need a new one. If your furnace blower wont turn on check to confirm the arrows on the air filter are pointing in the.

Check whether your furnace uses a heat-activated blower fan. The furnaces circuit breaker is a safety. Check the circuit breaker controlling the thermostat to make sure that it is on.

Im having an issue in which my furnace fan will not startrun when the thermostat fan setting is on AUTO with HEAT ONLY. That said it does work when I put it into Fan On.

Furnace Fan Blower Won T Turn On In Auto Mode Diy Home Improvement Forum