My furnace is not working. When the thermostat is set to FURN, nothing happens; no blower, no clicking, nothing. The gas is on and the stove lights, the thermostat is set to the correct mode and the temperature is set high enough for the furnace to come on. The 12v fuse is good. I have reset the breaker on the furnace and checked for loose wires.
I am trying to determine whether the problem lies with the furnace or the thermostat. According to the wiring diagram, the blue wires are from the thermostat. How can I test to see if the start signal from the thermostat is reaching the furnace?
Ron
I am trying to determine whether the problem lies with the furnace or the thermostat. According to the wiring diagram, the blue wires are from the thermostat. How can I test to see if the start signal from the thermostat is reaching the furnace?
Ron
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