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International Comfort Products C8MPN100J20A1 Limit Switch
The limit switch is a switch in the heat exchanger that determines when the heated air is warmed to a point for the air to begin normal home circulation. The main reason limit switches are made is due to the fact that if the air never warms up inside the exchanger then the house will never get warm enough.
Some warnings of a laboring main limit switch
- The whole system is starting to shut down unexpectedly on more than one occasion
- The heating and cooling system is unable to start or continue to run longer that five minutes
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