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Another person on a different forum gave me this link. I haven't had a chance to give it a go yet. Maybe it will help:
https://www.manualslib.com/manual/1353838/Samsung-Rfg237aa.html?page=79#manual

Having similar issue. Ice maker would occasionally just be out of ice for a day or two, but would always sort itself out. 2 days ago, no ice, and a quick quiet electric motor whirring noise repeating...