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Mitsubishi MSZ-A15NA Furnace Door Switch
This switch blocks the draft inducer and other risky devices from turning on so as to avoid injuries. It is extremely important that the device is switched out as quick as you can if it is not working in order to prevent injuries.
Red flags the safety door switch has to be replaced
- The furnace will not start even when you close the door
- The door switch looks eroded
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