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Carrier 38BYG042 Furnace Door Switch
The furnace door switch is a safety switch which blocks the draft inducer and burner being triggered to start so as to avoid injuries. You should have the switch be swapped out ASAP if you find it to be faulty.
What are the indications that my safety door switch is not working right?
- The system cannot run even when you close the door
- The door switch looks as if it has been breaking apart
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