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Carrier KFCEH2101F24 Limit Switch
The limit switch is a type of sensor switch in the air handler that senses, or governs, when the air is warmed to a point to activate the main blower. Limit switches are built due to the fact that if the air never warms up inside the exchanger the you will lose heat in the ducts and the vents will just blow cool air.
Key signs of an inadequate main limit switch
- The system begins to erratically from time to time
- The HVAC system refuses to kick in nor will it stay running even though max temp has not been reached
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