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Carrier 48HJE014 Furnace Door Switch
The furnace door switch is a safety switch which stops the blower and ignition sequence being triggered to start in order to prevent injury and fire. It is extremely important that the device is switched out promptly if you suspect that it is not working.
Elements of a laboring safety switch on the furnace door
- The furnace door switch is worn
- The HVAC system will not fire up whether the door is open or closed
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