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International Comfort Products NHP260GKA1 Furnace Door Switch
The job of the furnace door switch blocks the vent fan and gas ignition from turning on so as to stop a potential explosion. Do not try to fix it, just have it switched out promptly if you find it to be faulty.
Known indicators the your furnace door switch is almost dead?
- The switch seems beat up
- The furnace will not fire up with the door closed
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