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International Comfort Products NAC030AKA1 Furnace Door Switch
A furnace door switch is a safety feature that inhibits initial fan and burner from turning on in order to prevent injury and fire. You should really have it switched out as quick as you can if you see that it is broken.
Key clues of a barely functioning furnace door switch
- The system does not even thing about starting even with the door closed
- The furnace door switch looks breaking apart
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