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International Comfort Products HHP048GKA1 Furnace Door Switch
This switch stops initial fan and ignition sequence from activating so as to stop a potential explosion. It is imperative that the switch be exchanged for a new one promptly if it is not working in order to prevent injuries.
General warnings to watch for in a bad furnace door switch
- The furnace will not engage whether the door is off or on
- The door mechanism has been not there
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