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International Comfort Products C8MPV050B12A1 Limit Switch
The limit switch contains a sensor in the heat exchanger that senses, or governs, when the heated air is actually warm enough for the blower to be activated. The main reason limit switches are made is because if the air is too cool inside the furnace to begin with, then the house will never get warm enough.
Key signs of a declining limit switch
- The HVAC system will not start or will not stay running like it should
- The HVAC system begins to behave erratically more often than not
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