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Carrier 48XZ030060300TP Furnace Door Switch
A furnace door switch is a safety feature that stops initial fan and ignitor from activating in order to prevent injury and fire. Do not try to fix it, just have it exchanged for a new one immediately if you can, if it is defective in some way or another.
Main clues your safety switch on the furnace door is dead
- The safety door switch looks like it is bent badly
- The HVAC system does not fire up even when you close the door
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