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Fujitsu AOU18CL Furnace Door Switch
The job of the furnace door switch inhibits initial fan and other risky devices from switching on in order to prevent injury and fire. It is extremely important that the device is changed as quick as you can especially if you suspect it is not working properly.
Important red flags of a failing safety door switch
- The system does not operate whether the door is off or on
- The safety door switch has been wrong
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