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Samsung AFPCC052CA0 Limit Switch
Limit switches exist because if the air never warms up the you will lose all the heat as the air flows through the ducts. A normal limit switch is a switch in the heat exchanger that makes the determination when the heated air is warmed to a point for the main blower to kick in and circulate the air.
Clues of an inadequate main limit switch
- The HVAC system begins to run inconsistently more often than not
- The heating and cooling system will not even start or will not stay running longer than 30 seconds
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