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Carrier 58MXB040F10108 Limit Switch
The limit switch contains a sensor in the air handler that senses, or governs, if and when the air is warm enough for the main blower to kick in and circulate the air. A limit switch was crafted due to the fact that if the air inside the furnace is too cool the you will lose heat in the ducts and the vents will just blow cool air.
Red flags critical limit switch is dead
- The heating and cooling system will not start or continue to run even though max temp has not been reached
- Your system is beginning to behave erratically on more than one occasion
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