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International Comfort Products PGMD36H060A Furnace Door Switch
A furnace door switch is a safety feature that blocks initial fan and burner from turning on in order to prevent injury and fire. You should have the switch be exchanged for a new one swiftly if you suspect that it is not working.
Major red flags your furnace door switch will not live much longer
- The whole system does not fire up with the door closed
- The switch looks as if it has been fallen off
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