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Carrier 38ARD012 Limit Switch
A normal limit switch has a sensor located in the furnace that determines if and when the air is warm enough for the air to begin normal home circulation. A limit switch was crafted because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts.
Hints to watch for in a failing critical limit switch
- The system is starting to shut down unexpectedly on more than one occasion
- The heating and cooling system will not even start or continue to run like it is supposed to
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