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Carrier 48XL-A Limit Switch
The limit switch has a sensor located in the furnace that determines if and when the air is warmed to a point for the blower to be activated. The main reason limit switches are made is due to the fact that if the air inside the furnace is too cool the you will lose heat in the ducts and the vents will just blow cool air.
Major clues of a weakening limit type switch
- Your system begins to shut down unexpectedly frequently
- The heating and AC system will not begin or run for any length of time
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Before buying or ordering a new Carrier 48XL-A replacement part, do your due diligence and double check 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. HVAC professionals could be quite expensive to hire so it is best to shop around to find a good deal if you do not want to pay too much.
Feel free to download your manual for help.
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