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Payne PH12NA036000 Furnace Door Switch
A furnace door switch is a safety feature that blocks the fan and burner from switching on so as to stop a potential explosion. It is crucial to have this part traded for new one quickly especially if you suspect it is not working properly.
Some clues of a poorly performing safety switch on the furnace door
- The HVAC system does not operate with the door closed
- The safety door switch looks as if it has been chipped
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