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LG LP1415GXR Limit Switch
The reason limit switches exist is because if the air is too cool inside the furnace to begin with, the you will lose all the heat as the air flows through the ducts. The limit switch contains a sensor in the heat exchanger that senses, or governs, when the air is warm enough for the main blower to kick in and circulate the air.
Clues to watch for to know limit type switch will not live much longer
- The LG system is beginning to run erratically more often than not
- The heating and AC system will not begin or continue to run for any length of time
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