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Haier CPN08XCJ Furnace Door Switch
This switch inhibits the vent fan and gas ignition from switching on in order to prevent injury and fire. It is quite important to have it exchanged for a new one swiftly if it is defective in some way or another.
Key clues of a bad safety furnace door switch
- The door switch appears as though it has been beat up
- The furnace will not fire up whether the door is open or closed
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