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International Comfort Products H8MPN100F20A1 Limit Switch
The main reason limit switches are made is because if the air is not warm enough then you will never get hot air through the ducts. A normal limit switch contains a sensor in the heating area that decides when the air is warm enough so that it may be pushed through the ducts and out the vents.
Signs of an inadequate limit type switch
- The HVAC system refuses to kick in or run longer than a minute
- The International Comfort Products system begins to go through the startup sequence but stops quickly frequently
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