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Carrier 58CTX13510016 Limit Switch
A normal limit switch contains a sensor in the heat exchanger that decides when the air is actually warm enough for the blower to be activated. Limit switches exist 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.
Major signs of a poorly working critical limit switch
- System is unable to start nor will it stay running like it should
- The system is starting to initiate and then stops often
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