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Carrier 48XP048115300 Furnace Door Switch
The furnace door switch blocks the fan and gas ignition from starting in order to prevent injury and fire. Do not try to fix it, just have it swapped out promptly if you find it to be faulty.
Clues your furnace door switch needs replacing ASAP
- The system does not operate even with the door closed
- The safety door switch has been removed
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