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International Comfort Products H8MPV100J20C1 Limit Switch
A normal limit switch contains a sensor in the heating area that senses, or governs, when the air is warm enough for the main blower to kick in and circulate the air. A limit switch was crafted because if the air is not warm enough the you will lose all the heat as the air flows through the ducts.
Major warnings of a defective limit type switch
- The whole system begins to ramp up but then stops often
- The HVAC system will not start or continue to run for any length of time
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