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Friedrich MR12C1H Furnace Door Switch
A furnace door switch is a safety feature that prevents the vent fan and burner from turning on in order to prevent injury and fire. Do not try to fix it, just have it exchanged for a new one as soon as you can if it is damaged so as to prevent something bad happening.
How can I tell if my safety door switch is in need of replacing?
- The furnace door switch appears to be damaged
- The furnace will not run even with the door closed
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If you are going to be buying or purchasing, do your due diligence and make sure of the correct model as well as make a visual inspection so that you are positive that the correct furnace door switch is being ordered. You do not need to install the replacement part alone. Locate a pro in your community to pay to install it for you.
Feel free to download your manual for help.
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