Question about Carrier XHD183D Air Conditioner
My Carrier XHD183D has started running constantly on heat or air conditioning, regardless of the thermostat setting. Sometimes, turning the thermostat dial back and forth a few times will start it cycling normally, again. When it runs constantly, turning the dial up or down does not produce the audible click that normally results in the unit starting up or shutting down. Do I need to replace the thermostat assembly?
YOU COULD EITHER HAVE A THERMOSTAT PROBLEM OR FAN CONTROL PROBLEM.TURN THE POWER OFF AT THE FURNACE AND TAKE THE THERMOSTAT OFF THE WALL.MAKE SURE YOU MARK THE WIRES SO YOU KNOW HOW TO HOOK IT BACK UP AGAIN.RESTORE POWER TO THE FURNACE.TOUCH THE WIRES THAT WERE HOOKED TO THE R & G TERMINALS ON THE T-STAT TOGETHER AND HOLD THEM THERE.OBSERVE THE OPERATION. WHEN YOU TAKE THEM APART DOES THE BLOWER STOP?TRY IT A FEW TIMES. IF IT CONTINUES TO START AND STOP YOU GOT A BAD T-STAT.JEFF
Posted on Dec 15, 2007
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