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Carrier 58MXA060F14108 Limit Switch
The main reason limit switches are made is because if the air never warms up the you will lose heat in the ducts and the vents will just blow cool air. A normal limit switch has a sensor in the air handler that can determine when the heated air is warm enough for the main blower to kick in and circulate the air.
Major clues of a poorly performing limit switch
- System will not begin the ignition sequence or continue to run like it should
- The whole system starts to behave erratically occasionally
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