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    bazbnt's Avatar
    bazbnt Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 16, 2013, 08:36 AM
    Ducane furnaces
    Flame lights but goes out
    I have a Ducane furnace model MPGA100B4B, the furnace will light but the flame goes out after a few seconds. I have changed the igniter and it still does the same. The flame seems to go out even when the igniter is still glowing. I can hear the gas valve shut off. It started only doing this once in a while over the past few months and after a few tries it would go. Could it be the transformer for the gas valve or is there a switch involved?

    Thanks
    Brent
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Feb 16, 2013, 11:47 AM
    Clean the flame sensor.
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