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Samsung AP500PF Limit Switch
A normal limit switch is a type of sensor switch in the heat exchanger that can determine when the heated air is actually warm enough that it can be circulated throughout the house. Limit switches are built because if the air is not warm enough then the house will never get warm enough.
Symptoms to watch for in a bad limit type switch
- The HVAC system will not start or will not stay running longer than a minute
- The Samsung system begins to become inconsistent on a regular basis
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