Temp outside was below 20 degrees F so I selected them heat ran OK till this am when a error code of 80 appeared with a constant red light in upper right. What going on
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Temp outside was below 20 degrees F so I selected them heat ran OK till this am when a error code of 80 appeared with a constant red light in upper right. What going on
Look for the error codes on the inside of the furnace cover.
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