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Samsung AD26B1C13 Furnace Door Switch
The job of the furnace door switch blocks the blower and ignition sequence from starting in order to prevent injury and fire. Do not try to fix it, just have it traded for new one immediately if you can, if you suspect that it is not working.
Some clues of a failing furnace door switch
- The HVAC system cannot run even with the door closed
- The switch appears as though it has been worn
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