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International Comfort Products PGC024K060A Limit Switch
The limit switch has a sensor in the heat exchanger that determines when the air is warm enough so that it may be pushed through the ducts and out the vents. The reason limit switches exist is because if the warmed air is too cool then the house will never get warm enough.
Clues limit switch needs replacing
- The HVAC system will not initiate or run longer than 10 minutes
- The system starts to ramp up but then stops more than once
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