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International Comfort Products C8MPN075B12B1 Limit Switch
This is important because if the air never warms up the you will lose heat in the ducts and the vents will just blow cool air. A normal limit switch contains a sensor in the heat exchanger that decides when the air is actually warm enough that it can be circulated throughout the house.
General indicators that your limit switch is on its last leg
- The heating and AC system is unable to start or continue to run like it should
- The HVAC system is beginning to run erratically frequently
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