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International Comfort Products PGMD30G0608 Furnace Door Switch
The furnace door switch is a safety switch which blocks the blower and burner being triggered to start so as to avoid injuries. It is vital that this part be switched out quickly if it is defective in some way or another.
Major indications to watch for in a bad switch on the furnace door
- The furnace will not run whether the door is open or closed
- The door mechanism looks as if it has been bent badly
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