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Whirlpool ATR1543SPP0 Furnace Door Switch
The furnace door switch is a safety switch which inhibits the draft inducer and ignition sequence from switching on so as to avoid injuries. It is important to get the part exchanged for a new one promptly if it is not working in order to prevent injuries.
Major signs the safety door switch is not going to last much longer
- The door switch has been not there
- The furnace does not turn on even when you close the door
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