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Whirlpool ATR1545CPP0 Furnace Door Switch
The furnace door switch is a safety switch which prevents the vent fan and other risky devices being triggered to start so as to stop a potential explosion. You must have the device replaced promptly if it is causing you problems.
Some warnings of a deteriorating furnace door switch
- The HVAC system will not fire up whether the door is open or closed
- The door switch seems broken
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