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International Comfort Products H9MPD075F12A1 Furnace Door Switch
A furnace door switch is a safety feature that blocks the draft inducer and burner from activating so as to stop a potential explosion. You should have the switch be changed immediately if you can, if it is not working in order to prevent injuries.
Chief elements of a faulty safety furnace door switch
- The system does not fire up even when you close the door
- The door mechanism looks like it is breaking apart
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