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Have a goodman furnace and it won't turn off even though thermostat is disconnected

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Remove 1 of the 24volt wires from the transformer do you still have the problem? If you do reinstall the wire back to its terminal where taken loose then do the other wire. and see. If it shuts off with the red wire removed from the transformer 24 volt side the problem is a shorted wire from the furnace to the thermostat.

Posted on Dec 19, 2008

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