Coleman Presidential III Model # 7970A856 Furnace
Coleman Presidential III Model # 7970A856 Furnace
The furnace runs for 1-2 minutes, then shuts off for about 30 seconds to a minute, then comes back on. It does that until it gets to the temp I set the thermostat to. I called the local technician, he said it was the fan Switch. He said check the voltage going to the fan switch. I checked the voltage going to the fan switch. Both wires to ground read 120vac when running. When off, the bottom wire to ground read 120vac and the top wire read 0vac.
So, I don't think it's the fan switch. What else could It be?
Also, tonight the fan motor started squealing really loud. Can I fix that or do anything to it to stop from doing it. Or do I have to replace the motor?