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International Comfort Products PGS030K080F Limit Switch
A normal limit switch has a sensor in the heat exchanger that can determine when the air is warm enough so that it may be pushed through the ducts and out the vents. Limit switches are built due to the fact that if the air inside the furnace is too cool the you will lose heat in the ducts and the vents will just blow cool air.
Important hints limit switch has little life left
- The HVAC system starts to act weird often
- The HVAC system will not initiate or continue to run as it should
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