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Mitsubishi MSZ-A18YV Furnace Door Switch
The furnace door switch is a safety switch which blocks the draft inducer and burner being triggered to start in order to prevent injury and fire. You should have the switch be replaced promptly if you suspect that it is not working.
Indications the switch on your furnace door will die soon
- The HVAC system does not function whether the door is open or closed
- The door mechanism appears to be messed up
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If you are going to be buying or ordering a new Mitsubishi MSZ-A18YV replacement part do your best and double check the correct model and also make a visual inspection in order to be sure the proper replacement furnace door switch is being ordered. Once you have the part to install the part by yourself. Hire a pro in your town or city to do it for you.
Feel free to download your manual for help.
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