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International Comfort Products H8MPV050B12B1 Furnace Door Switch
The furnace door switch is a safety switch which prevents the blower and ignition sequence from switching on so as to stop a potential explosion. It is crucial to have this part exchanged for a new one at once if you see that it is broken.
Chief elements of an ailing safety door switch
- The switch seems beat up
- The furnace does not turn on with the door closed
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