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International Comfort Products NAC248GKA1 Furnace Door Switch
The furnace door switch is a safety switch which prevents the vent fan and other risky devices being triggered to start so as to avoid injuries. Do not try to fix it, just have it traded for new one quickly if it is defective.
Main clues the switch on your furnace door will eventually need to be replaced
- The door switch seems to be bent
- The HVAC system does not begin to work with the door closed
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