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Carrier 58STA045 Furnace Door Switch
The furnace door switch is a safety switch which prevents initial fan and gas ignition from starting in order to prevent injury and fire. It is crucial to have this part substituted for a new part quickly if you suspect that it is not working.
Major warnings the switch on your furnace door will die soon
- The whole system cannot run even when you close the door
- The door switch is broken badly
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