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Whirlpool ATR0742BPP0 Furnace Door Switch
A furnace door switch is a safety feature that prevents the draft inducer and ignitor from switching on so as to stop a potential explosion. It is imperative that the switch be substituted for a new part as soon as possible if it is defective.
Symptoms your furnace door switch will eventually need to be replaced
- The whole system will not operate even with the door closed
- The door mechanism looks like it is beat up
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