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GREE MULTI18HP201 Limit Switch
A normal limit switch has a sensor in the heat exchanger that can determine if and when the air is warm enough to activate the main blower. One big reason why limit switches are designed that way is because if the warmed air is too cool then you will never get hot air through the ducts.
Signs of a defective critical limit switch
- The heating and AC system will not even start or continue to run for any length of time
- The system is starting to runs uneven on a regular basis
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