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International Comfort Products NTC6100GFA Furnace Door Switch
The job of the furnace door switch prevents initial fan and ignition sequence from starting in order to prevent injury and fire. It is extremely important that the device is exchanged for a new one as quick as you can especially if you suspect it is not working properly.
Warnings of a dying safety door switch
- The door switch looks as if it has been broken completely
- The furnace will not operate even with the door closed
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