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International Comfort Products NDC7125BKA1 Furnace Door Switch
The job of the furnace door switch prevents the vent fan and gas ignition from switching on so as to avoid injuries. It is extremely important that the device is replaced as soon as possible if you see that it is broken.
Red flags your safety switch on the furnace door has little life left
- The door switch appears as though it has been worn
- The system does not begin to work even with the door closed
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