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Carrier 40MFC018 Limit Switch
A normal limit switch contains a sensor in the air handler that makes the determination when the heated air is warm enough for the blower to be activated. Limit switches exist because if the air is too cool inside the furnace to begin with, the you will lose all the heat as the air flows through the ducts.
Clues main limit switch is in need of replacing
- The system begins to behave differently on a regular basis
- The heating and AC system is unable to start or run well as it should
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If you are going to be buying or ordering a new Carrier 40MFC018 replacement part do your best and make sure of the correct model and also make a visual comparison so that you are positive that the proper replacement limit switch is the one being purchased. There is no need to replace the part all by yourself. Search for a pro in your community to do it for you.
Feel free to download your manual for help.
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