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

    Dec 3, 2010, 05:42 AM
    Intertherm M1MB hot surface ignitor powers up, burner comes on and then shuts down
    Interthem L.P. gas M# M1MB 090ABW ignitor lights up, burner comes on and then in two seconds everything shuts down. The entire process repeats itself again.
    Board electronic yellow LED (burner) light never comes on and the red LED glows continuously. Not sure if board is bad. Unit has been running steady for two years without problems.
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #2

    Dec 3, 2010, 09:04 PM
    Try cleaning the flame sensor.
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