Question about Goodman GMS90703BXA Heater

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Heater not starting

I have a goodman heater and it is blinking six times. it read that six blink means open rollout. the roll is good and i still replaced it and the furnace still blinks six times. what can be the problem? the fan works but nofire

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  • aldujam Feb 12, 2009

    thanks for the helpful information. i have tried all of what you said except checking the board. if you have any other solutions please do so



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Did the furnace kick in at all after you replaced the rollout? if it did run then check the filter make sure its clean, or even leave it out for a bit. if it didnt run after you replace the roll out then switch the breaker off then wait ten seconds then turn back on this will reset the ciruit board and it should try to cycle. next thing you can try is jumper the roll out switch DO NOT LEAVE IT JUMPERED, its just to double check that its not the roll out, if it works jumpered replace the roll out again and try that. if none of that works take out the crews on the ciruit board and check the back. sometime when a ciruit board fails there will be a burn mark somewhere on the back, if there is replace it.


Posted on Feb 12, 2009

  • vegster Feb 12, 2009

    one other thing is that some furnaces have more than one roll out switch, sometimes there is one at the back of the blower motor which you can only really get at if you remove the motor, follow the wires because they all should be on the same loop. Another thing is to describe to me exacly what the furnace does after you reset it. the cycle should go something like

    1. inducer motor turns on (small motor at the top of the furnace)

    2. this activates a pressure switch and the glow/spark ignitor should turn on (you should hear the spark, or see the glow)

    3. the gas should switch on, you'll hear a click and the burners should light up.

    4. after about a minute the blower motor should kick in.

    if the furnace fails before step one then its either the board or one of those roll outs. if the inducer motor fails to turn on they it might be a problem there. if the inducer motor turns on but the ignitor never turns on it might be a problem with something stuck in the chimney, or sometimes something small gets stick where the rubber hose connects to the inducer motor. if the burners come on for a few seconds you'll have to clean the flam sensor.

    with a little more info i'm sure we can figure this out.



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