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Mitsubishi MSZ-A12NA Furnace Door Switch
The furnace door switch stops the blower and ignitor from switching on so as to avoid injuries. It is important to get the part traded for new one as soon as possible if it is not working in order to prevent injuries.
Key clues of a poorly performing safety furnace door switch
- The safety door switch seems eroded
- The system does not run whether the door is off or on
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