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Carrier 38BRC024 Furnace Door Switch
The job of the furnace door switch blocks initial fan and ignition sequence from starting so as to stop a potential explosion. You should really have it exchanged for a new one at once especially if you suspect it is not working properly.
Signals your safety switch on the furnace door is dying
- The furnace does not operate with the door closed
- The door switch appears as though it has been broken
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