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Carrier 38ESA036 Furnace Door Switch
The furnace door switch is a safety switch which prevents the vent fan and other risky devices from starting in order to prevent injury and fire. It is quite important to have it swapped out as soon as you can if it is defective in some way or another.
Chief elements of a weak safety furnace door switch
- The furnace door switch seems messed up
- The furnace will not fire up with the door closed
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