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Frigidaire FRS18PYW20 Furnace Door Switch
A furnace door switch is a safety feature that blocks the draft inducer and gas ignition from switching on in order to prevent injury and fire. You must have the device substituted for a new part quickly especially if you think it is defective.
Indications to watch for in a failing switch on the furnace door
- The door switch looks worn down
- The furnace will not even begin to start whether the door is off or on
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