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Carrier 25HNA648A0030020 Limit Switch
A limit switch was crafted due to the fact that if the air never warms up inside the exchanger the you will lose all the heat as the air flows through the ducts. A normal limit switch contains a sensor in the heating area that senses, or governs, when the heated air is warm enough that it can be circulated throughout the house.
Signals of a defective critical limit switch
- Your Carrier system is unable to start nor will it stay running longer than a minute
- The Carrier system starts to run inconsistently from time to time
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Before buying or purchasing a new Carrier 25HNA648A0030020 replacement part, do your due diligence and make sure of the correct model and also make a visual inspection so that you are positive that the right limit switch is the one being purchased. Replacing a new 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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