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Carrier 25HPA518A0030010 Limit Switch
The limit switch is a type of sensor switch in the heating area that decides if and when the air is warmed to a point for the blower to be activated. This is important because if the air is too cool inside the furnace to begin with, then the house will never get warm enough.
What signals that my main limit switch is in need of replacing?
- The Carrier system is beginning to ramp up but then stops on more than one occasion
- Your Carrier system will not start or run well even though the desired temperature has not been attained
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