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International Comfort Products HHP224GKA1 Limit Switch
The limit switch contains a sensor located in the furnace that can determine when the air is warmed to a point to activate the main blower. The main reason limit switches are made is due to the fact that if the air never warms up inside the exchanger then the house will never get warm enough.
Key signs of a barely functioning critical limit switch
- System is unable to start or continue to run longer than 10 minutes
- The HVAC system is starting to ramp up but then stops time after time
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