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Carrier 48XZN036060300 Furnace Door Switch
A furnace door switch is a safety feature that prevents the fan and burner from turning on so as to avoid injuries. You must have the device changed promptly especially if you think it is defective.
Clues to watch for to know your furnace door switch needs a replacement ASAP
- The whole system will not engage even when you close the door
- The door mechanism has been broken completely
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