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International Comfort Products PGMD24G0406 Furnace Door Switch
A furnace door switch is a safety feature that stops the vent fan and ignitor being triggered to start so as to avoid injuries. You should have the switch be swapped out ASAP if it is damaged so as to prevent something bad happening.
Important clues of a weakening furnace door switch
- The door switch seems not there
- The furnace does not function with the door closed
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