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International Comfort Products GNE100F20A1 Limit Switch
The limit switch is a type of sensor switch in the heat exchanger that can determine if and when the air is warmed to a point that it can be circulated throughout the house. Limit switches were created because if the air is not warm enough then the house will never get warm enough.
Major warnings of a bad limit switch
- The heating and cooling system will not start or run longer than 30 seconds
- The system begins to shut down unexpectedly occasionally
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