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International Comfort Products GPCM36K100F Limit Switch
A normal limit switch has a sensor in the air handler that can determine if and when the air is warmed to a point that it can be circulated throughout the house. The reason limit switches exist is due to the fact that if the air never warms up inside the exchanger the you will lose all the heat as the air flows through the ducts.
Some warnings limit switch is in need of replacing
- The system starts to become inconsistent time after time
- The heating and AC system refuses to kick in or run even though the desired temperature has not been attained
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