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Friedrich MW36C3F Furnace Door Switch
The furnace door switch inhibits the blower and burner from switching on in order to prevent injury and fire. It is extremely important that the device is traded for new one as soon as possible especially if you think it is defective.
Some clues the switch on your furnace door will have to be replaced
- The HVAC system does not fire up even when you close the door
- The door mechanism looks as if it has been broken completely
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