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Mitsubishi MSY-D30NA Furnace Door Switch
A furnace door switch is a switch that blocks initial fan and ignition sequence being triggered to start so as to stop a potential explosion. It is extremely important that the device is traded for new one promptly if it is defective.
Key indicators that my safety switch on the furnace door is not working properly?
- The door switch looks broken
- The system does not turn on even when you close the door
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