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International Comfort Products NDN5050BFC2 Furnace Door Switch
The furnace door switch is a safety switch which prevents the blower and ignition sequence being triggered to start so as to stop a potential explosion. It is vital that this part be exchanged for a new one as soon as you can if it is defective.
Key signs of a barely functioning safety furnace door switch
- The safety door switch has been broken completely
- The whole system does not even thing about starting even when you close the door
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