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Carrier 25HNA660A0030020 Furnace Door Switch
The furnace door switch is a safety switch which blocks the fan and gas ignition from starting in order to prevent injury and fire. It is imperative that the switch be switched out ASAP if you see that it is broken.
Easy warnings poorly running safety switch on the furnace door
- The furnace will not operate even when you close the door
- The furnace door switch seems to be eroded
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