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Mitsubishi MSY-A17NA Furnace Door Switch
This switch blocks the vent fan and ignition sequence from turning on so as to avoid injuries. It is crucial to have this part exchanged for a new one as soon as possible if you find it to be faulty.
Indications of a weakening switch on the furnace door
- The furnace does not operate whether the door is open or closed
- The furnace door switch is removed
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If you are going to be buying or purchasing any Mitsubishi MSY-A17NA part do your best and make sure of the correct model and also make a visual inspection so that you are positive that the proper replacement furnace door switch is the one being purchased. Once you have the part to install it yourself. Look for a professional in your area to replace the part.
Feel free to download your manual for help.
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