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    bigdog98vc's Avatar
    bigdog98vc Posts: 3, Reputation: 1
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    #1

    Nov 28, 2008, 08:19 PM
    Goodman gmnt-100 won't light
    My goodman gmnt100 won't light just replaced the ignitor about 3 weeks ago was working fine and then started lighting intermittantly now won't go at all
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Nov 28, 2008, 08:29 PM

    On begin start up tell us what its doing. Have you bypassed the tstat ? To rule it out
    bigdog98vc's Avatar
    bigdog98vc Posts: 3, Reputation: 1
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    #3

    Nov 28, 2008, 08:41 PM

    Ignitor doesn't warm but if you use a different power source it gets real hot
    bigdog98vc's Avatar
    bigdog98vc Posts: 3, Reputation: 1
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    #4

    Nov 28, 2008, 08:46 PM
    Quote Originally Posted by wmproop View Post
    on begin start up tell us what its doing. have you bypassed the tstat ? to rule it out
    You hear it kick in and the vent fan runs but never lights
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #5

    Nov 28, 2008, 08:54 PM

    Sounds like you need to look at replacing the circuit board,, does it have a blinking led light on the board?have you checked the igniter with a meter? While starting are you getting power to the igniter from control board, should be reading 120-130 volts during time it should be lighting
    barnis's Avatar
    barnis Posts: 3, Reputation: 1
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    #6

    Feb 21, 2011, 08:27 PM
    I have the same issue. I get 8 flashes and after a 30 minute power cycle it **usually* lights but tonight... nothing. The ignitor was replaced a month or so again and the same issue began about 2 weeks later... help
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