I have a gmp 075 gas furnace I have replaced board and open limit switch the furnace starts up fires and lights the and burners go out after 15 seconds and the blower runs what else can I look for
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I have a gmp 075 gas furnace I have replaced board and open limit switch the furnace starts up fires and lights the and burners go out after 15 seconds and the blower runs what else can I look for
If it has a flame sensor clean it.
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