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Samsung AVMKC040CA0 Furnace Door Switch
The furnace door switch is a safety switch which blocks the draft inducer and ignitor from activating so as to avoid injuries. It is imperative that the switch be exchanged for a new one as soon as you can if it is defective in some way or another.
How do you know if your furnace door switch is not working right?
- The door switch has been bent
- The furnace will not engage even with the door closed
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