My pilot light is lit on my furnace but the furnace won't kick on. I changed the thermostat and it did fire up but after running a short while it started to blow only cold air. Can anyone tell me what could possibly be wrong?
My pilot light is lit on my furnace but the furnace won't kick on. I changed the thermostat and it did fire up but after running a short while it started to blow only cold air. Can anyone tell me what could possibly be wrong?
I would need a lot more information about what kind of furnace you have and if there is 24 volts at the red and the white thermostat wire in the furnace.
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