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International Comfort Products H8MPT075F14B1 Limit Switch
A normal limit switch contains a sensor in the heating area that makes the determination when the air is warm enough for the blower to be activated. Limit switches exist due to the fact that if the air inside the furnace is too cool then the house will never get warm enough.
What are the signs that the limit switch is in need of replacing?
- The heating and cooling system will not initiate or run longer than a minute
- The whole system is beginning to behave differently frequently
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