Question about Goodman GMS90703BXA Heater
My heater try to comes on, but after 10 seconds the circuit board will display an error failure and the light will blink 3 times and theres no code guide on the panel .whats the meaning of the code for a goodman gas heater when it blinks 3 times.
The error code refers to a defective combustion air switch. Coleman Evcons made around 2007 had defective pressure switches or as they call them "combustion air switch". Replace it and the problem is gone.
Posted on Dec 30, 2009
I had 3 blinking lights, i unpluged wire harness from curcuit board blew it out pluged it back in and everything worked fine
Posted on Dec 31, 2009
Check your pressure switch, should look like a plastic circle, older ones are metal. take off the ruber hose and gently blow in it and **** listen for a crackle sound, replace and see if that fixes the problem. also look and see what happens when the unit comes on do you get a redish glow? it might even be your flame sensor see if that is clean, will be near the burners with 1 white wire going to it, take it out sand it and repalce.
Posted on Jan 09, 2009
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Posted on Jan 02, 2017
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