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Payne PY2PNB036060AA Furnace Door Switch
The furnace door switch blocks initial fan and other risky devices from switching on so as to stop a potential explosion. It is vital that this part be changed swiftly especially if you suspect it is not working properly.
Some clues of a dying safety furnace door switch
- The furnace door switch appears as though it has been chipped
- The HVAC system does not turn on even with the door closed
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