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Carrier 48DD Limit Switch
This is important because if the air is not warm enough the you will lose all the heat as the air flows through the ducts. A normal limit switch is a type of sensor switch in the air handler that can determine when the air is warm enough that it can be circulated throughout the house.
Clues limit type switch will need to be replaced
- Your Carrier system will not even start or continue to run like it is supposed to
- The HVAC system starts to become inconsistent occasionally
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Before buying or ordering a replacement limit switch for your Carrier 48DD do your best and make sure of the model number as well as make a visual inspection in order to be sure the right limit switch is the one being purchased. Use caution when you install any HVAC part. When in doubt call a pro. Stay safe.
Feel free to download your manual for help.
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