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Payne PA13NR04200GAAAA Furnace Door Switch
The job of the furnace door switch blocks the fan and ignitor from switching on so as to avoid injuries. Do not try to fix it, just have it swapped out immediately if you can, if you see that it is broken.
Elements to watch for in a bad furnace door switch
- The whole system will not fire up even with the door closed
- The switch seems bent badly
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