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HOME > HVAC > CARRIER > 40MFC012 > FURNACE DOOR SWITCH

Carrier 40MFC012 Furnace Door Switch

The furnace door switch is a safety switch which inhibits the blower and other risky devices from starting so as to stop a potential explosion. It is vital that this part be swapped out promptly if you find it to be faulty.

Hints to watch for in a failing safety door switch

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Check eBay to see if your furnace door switch is in stock!
Before buying or purchasing do your best and cross-check the correct model as well as make a visual inspection in order to be sure the right furnace door switch is the one being purchased. There is no need to replace the part all by yourself. Look for a professional in your community to hire and install the part for you.
Feel free to download your manual for help.
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Check eBay for your furnace door switch!