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Rheem RSNA-B Series Defrost Sensor Board
The defrost sensor control board instructs the outdoor unit to begin the defrost sequence which actually helps to keep your outdoor unit from plugging up. The board looks to a sensor located in the outdoor unit to agree when to begin.
Major signs to watch for in a failing AC defrost sensor board
- The main control board could display an error of some type when the defrost board fails
- The whole system may not operate at all because of lack of airflow through the outdoor unit
- The defrost sequence will not initiate especially when there is frost on the unit
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Before you decide on buying or purchasing any Rheem RSNA-B Series part do your best and cross-check the model number as well as make a visual inspection in order to be sure the right defrost sensor board is the one being purchased. If you are not sure about installing the new defrost sensor board on your own then it may be wise to contact a professional to do the replacement of the part.
Feel free to download your manual for help.
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