Question about Goodman GMS90703BXA Heater

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No flame to start

All system is woking exept the ignition for the flame, I'd like to find a solution fo my problem

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  • Anonymous Dec 29, 2008

    Hi, I have the same intermittent problem. 1 month old installation, nice new unit.

    - Thermostat calls for heat
    - Blower motor starts
    - Ignitor glows red
    - Gas valve does not come on before the Ignitor quits
    - Furnace tries this 3 times, quits, and then light blinks once

    I can shut down power to furnace, letting it reset I think, and then furnace tries again and usually works fine.

    Suggestions welcomed, thanks


  • jrclark2008 Dec 31, 2008

    gmh95/gch9 new installation,started up normal, ran 15 minutes, now no burner, all prestarts seem normal,ignitor glows then shuts down, seems like no gas to ignite

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If the ignitor is glowing, we will need to check for 24 volts AC across the gas valve. If you do not have it, look at replacing the ignitor first. Even if it glows, it may not be sending the signal to the control board. Secondly you will need to replace the control board. If you get 24 volts for a few seconds but does not ignite, you either have a bad gas regulator, dirty burners or a bad gas valve. What is abnormal is that you say it runs for 15 minutes but does not restart.

Hope this is some help

Posted on Jan 02, 2009

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md

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