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Carrier 48XPN042090300 Limit Switch
The limit switch contains a sensor in the air handler that senses, or governs, when the heated air is actually warm enough that it can be circulated throughout the house. Limit switches are crucial because if the air is not warm enough the you will lose all the heat as the air flows through the ducts.
Elements of a weakening main limit switch
- The Carrier system is beginning to runs uneven more than once
- The heating and cooling system refuses to kick in or run well longer that five minutes
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Before you decide on buying or purchasing do your best and make sure of the model number as well as make a visual comparison so that you are positive that the proper replacement limit switch is the one being purchased. If you are unsure about the installation of the new limit switch on your own then it is probably best to consult a pro to do the work for you.
Feel free to download your manual for help.
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