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Carrier 48XZN042090300 Limit Switch
The main reason limit switches are made is because if the air is not warm enough the you will lose all the heat as the air flows through the ducts. The limit switch is a type of sensor switch in the heating area that senses, or governs, when the air is warm enough that it can be circulated throughout the house.
Key clues of an ailing critical limit switch
- The heating and cooling system refuses to kick in or continue to run as it should
- The system begins to behave erratically from time to time
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If you are going to be buying or ordering, do your due diligence and double check the correct model and also make a visual inspection so that you are positive that the proper replacement limit switch is being ordered. The installing of the limit switch can be quite easy if you have the time and have the tools to do it right.
Feel free to download your manual for help.
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