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    tgriffin2's Avatar
    tgriffin2 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 15, 2010, 01:52 PM
    Nordyne m1mb furnace burner ignites, will not stay lit cylces 4 times then lockout
    My nordyne m1mb furnace burner ignites, howerver will not stay lit - it cycles through about 4 times, then locks itself out - the pressure switch appears to be okay and the thermocouple was replace two months ago
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
    Ultra Member
    		  
    #2

    Feb 15, 2010, 01:59 PM
    Possible ,need to clean the flame senser with fine sanpaper or steel wool
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