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Carrier 48XL-A Defrost Sensor Board
The defrost sensor board is jobbed with determining when to begin the defrost sequence which may be needed in order to remove frost build-up that may accumulate. The defrost sensor board is influenced by a defrost sensor located near the condenser to determine when the defrost cycle should begin.
Symptoms your defrost board is in dire straights
- The HVAC system could not run at all because of the fact that there is too much frost
- Your main control board may signify an alphanumeric error code produced when the defrost control board fails to receive a signal
- The defrost sequence refuses to run especially when there is a rather large amount of frost on the outdoor unit
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Before you decide on buying or purchasing any Carrier 48XL-A part, do your due diligence and cross-check the model number as well as make a visual inspection in order to be sure the proper replacement defrost sensor board is the one being purchased. If you are not sure about installing the defrost sensor board by yourself then it would be in your best interest to find a professional in your area to do the work for you.
Feel free to download your manual for help.
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