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Carrier 58STX11010012 Limit Switch
The reason limit switches exist is due to the fact that if the air inside the furnace is too cool the you will lose all the heat as the air flows through the ducts. A normal limit switch has a sensor in the heating area that determines when the air is warm enough that it can be circulated throughout the house.
Key symptoms of a faulty limit switch
- Your Carrier system refuses to start or run longer than 10 minutes
- Your system is beginning to become unpredictable on more than one occasion
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