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Whirlpool ATR0942CPP0 Furnace Door Switch
The furnace door switch blocks the blower and ignitor from activating so as to avoid injuries. It is crucial to have this part substituted for a new part at once especially if you think it is defective.
Easy warnings of a failing switch on the furnace door
- The whole system will not even begin to start whether the door is open or closed
- The door switch appears to be worn down
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