My furnace (1995 Dutchmen) was blowing cold air when the heater was set to 90. I went and unplugged two wires on the furnace and heard the igniter turn on and it started working. Think there's a short...
So, my new thermostat helped with the heater... But now my AC doesn't work hahah. I rewired the old thermostat and the AC worked... So, at night, I'd wire the new thermostat...During the day I'd wire the old thermostat. The old thermostat has a blue wire that the new one doesn't.
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