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LG LP120HED Limit Switch
A normal limit switch has a sensor in the air handler that senses, or governs, when the air is warmed to a point for the blower to be activated. This is important because if the air is too cool inside the furnace to begin with, then the house will never get warm enough.
Key indicators that my limit switch is about to stop working?
- The heating and AC system refuses to kick in or run well as it should
- The LG system starts to erratically on a regular basis
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