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EdgeStar AP14009COM Limit Switch
A normal limit switch is a type of sensor switch in the air handler that senses, or governs, when the heated air is warm enough that it can be circulated throughout the house. Limit switches were created because if the air never warms up the you will lose all the heat as the air flows through the ducts.
Warnings of a poorly working critical limit switch
- System will not start or run longer than a minute
- The EdgeStar system begins to stop suddenly on more than one occasion
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