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Trane xl90 gas furnace red light
lostjohn54
Jan 13, 2009, 04:20 PM
I have trane xl90 gas upflow furnace red light blinking on circuit board no legend any where anybody know where to get information
hvac1000
Jan 13, 2009, 04:23 PM
Look on the back of the blower door for the legend and post what it says.