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Friedrich MW36C3G Furnace Door Switch
A furnace door switch is a switch that prevents the draft inducer and burner from starting so as to avoid injuries. It is extremely important that the device is substituted for a new part as quick as you can if you see that it is broken.
Important clues of a laboring safety door switch
- The furnace will not even begin to start with the door closed
- The door mechanism looks like it is not there
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