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International Comfort Products NHP218GKA1 Furnace Door Switch
The furnace door switch is a safety switch which prevents the vent fan and burner being triggered to start so as to avoid injuries. It is extremely important that the device is traded for new one immediately if you can, if you find it to be faulty.
Signals the switch on your furnace door is on its last leg
- The furnace door switch is damaged
- The whole system will not fire up with the door closed
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