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Payne PG8JAA042090 Furnace Door Switch
The job of the furnace door switch blocks the fan and gas ignition being triggered to start in order to prevent injury and fire. Do not try to fix it, just have it switched out as quick as you can if it is defective in some way or another.
Some warnings to watch for in a failing switch on the furnace door
- The system does not turn on even with the door closed
- The switch is worn down
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