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    johnson6612's Avatar
    johnson6612 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jun 16, 2013, 08:50 AM
    Furnace plb-91454
    Furnace tries to fire , fan comes on in combustion chamber , tries to fire and then the 2 green lights on computer board start flashing
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
    Ultra Member
    		  
    #2

    Jun 16, 2013, 03:36 PM
    There has to be a key to the blink code somewhere. Look on the board itself or on a sticker on the inside of the blower door.
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