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International Comfort Products H8DNL050B12A1 Furnace Door Switch
The job of the furnace door switch inhibits initial fan and burner being triggered to start in order to prevent injury and fire. You must have the device swapped out ASAP especially if you suspect it is not working properly.
Major clues your furnace door switch is in dire straights
- The furnace cannot run with the door closed
- The safety door switch looks fallen off
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