Kenmore Ice Maker Won't Dump the Ice

I have a Kenmore side by side refrigerator, model 106.56679500. The ice maker has frozen water, the filter was replaced maybe a month earlier, the water dispenser works, but ice quit dumping 3 weeks later. I wonder if the light that senses if ice is in the dispenser is out, thus thinking dispenser is full or if the ice maker is broker. Suggestions?

By Jon McK