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Carrier 58MXA120F14120 Furnace Door Switch
The furnace door switch blocks the blower and burner from starting in order to prevent injury and fire. You must have the device swapped out promptly if you see that it is broken.
Signals your furnace door switch will not live much longer
- The HVAC system does not fire up even when you close the door
- The door switch looks like it is beat up
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