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International Comfort Products NTC5075BFD1 Furnace Door Switch
The furnace door switch is a safety switch which stops the vent fan and other risky devices from activating in order to prevent injury and fire. Do not waste time and have it substituted for a new part quickly especially if you think it is defective.
How can I tell if my furnace door switch is on its last leg?
- The furnace cannot run whether the door is open or closed
- The door switch looks like it is broken completely
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