Question about Goodman GMS90703BXA Heater
My heater and central air when turned on will run continously the only way I can get them to turn of is flipping the breaker. I have change the thermostat out two times, and installed a new control board. Any other things I might try?
Maybe youhave a pinched thermostat wire. If the room air blower is blowing, At the control board remove the wire located on the G terminal. What keeps this blower turning is a connection between the R and G terminals. The heat is caused by a connection between the R and W terminals. So if you disconnect the R wire and the unit turns off, you do have a short in the thermostat wire. If it keeps going, you have a bad board.
Posted on Oct 13, 2009
Check the relays!
Posted on Dec 12, 2008
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Posted on Jan 02, 2017
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