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International Comfort Products PGC048K120F Furnace Door Switch
The furnace door switch is a safety switch which prevents the draft inducer and ignitor from turning on in order to prevent injury and fire. You should really have it traded for new one ASAP especially if you suspect it is not working properly.
What warnings are present when my furnace door switch is not working right?
- The door mechanism looks as if it has been chipped
- The whole system does not fire up whether the door is open or closed
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