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International Comfort Products T8MPN075B12B1 Limit Switch
The limit switch has a sensor in the heat exchanger that determines if and when the air is actually warm enough that it can be circulated throughout the house. The main reason limit switches are made is due to the fact that if the air inside the furnace is too cool the you will lose all the heat as the air flows through the ducts.
Some warnings of a declining limit type switch
- Your system begins to become inconsistent often
- Your International Comfort Products system will not start or run well longer that five minutes
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