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Carrier 50XL-A24 Furnace Door Switch
A furnace door switch is a switch that blocks the draft inducer and ignition sequence being triggered to start so as to stop a potential explosion. You should really have it substituted for a new part as soon as possible if it is defective.
Clues your safety switch on the furnace door is in dire straights
- The door switch appears as though it has been chipped
- The furnace will not start even with the door closed
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