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Carrier 48GP024060300 Limit Switch
The main reason limit switches are made is because if the air never warms up the you will lose heat in the ducts and the vents will just blow cool air. The limit switch is a type of sensor switch in the air handler that can determine when the heated air is warmed to a point that it can be circulated throughout the house.
Indications of a defective main limit switch
- The system begins to run inconsistently from time to time
- Your Carrier system refuses to start or run longer than 30 seconds
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