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Carrier 58STX07010012 Furnace Door Switch
A furnace door switch is a switch that prevents the vent fan and other risky devices from turning on so as to avoid injuries. Do not try to fix it, just have it traded for new one as quick as you can if you see that it is broken.
Hints of a failing furnace door switch
- The door mechanism appears as though it has been broken badly
- The furnace does not even thing about starting with the door closed
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