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    lostjohn54's Avatar
    lostjohn54 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 13, 2009, 04:20 PM
    Trane xl90 gas furnace red light
    I have trane xl90 gas upflow furnace red light blinking on circuit board no legend any where anybody know where to get information
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 13, 2009, 04:23 PM
    Look on the back of the blower door for the legend and post what it says.
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