Changed Thermostat / AC Compressor wont shut off...?
Helping a friend with a central AC. He has already swapped the thermostat, switch and transformer. The fan in the AC unit in the attic turns on when the thermostat is set to cool. Unfortunately, the compressor outside runs non-stop. I flipped the circuit
only three possible reasons for this to happen....1 yellow wire that hooks to red wire going to condensing unit is not on the y terminal on the thermostat...2 bad thermostat..3 contactor is burnt shut especially if this is the problem he had when he
