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Carrier KFCEH1401N09 Limit Switch
The reason limit switches exist is due to the fact that if the air inside the furnace is too cool the you will lose heat in the ducts and the vents will just blow cool air. A normal limit switch contains a sensor in the air handler that senses, or governs, if and when the air is warm enough for the air to begin normal home circulation.
Some warnings main limit switch will die soon
- System will not start or run well like it is supposed to
- Your system is beginning to run erratically time after time
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