Ice maker not filling up

My ice maker stopped working. I pulled the fridge out, checked the water line and everything is fine. When I unplug the fridge, and plug it back it, the water line into the ice maker turns on for 1sec, pumps some water in, then it shuts off, and never pumps any more water in the make ice. It does this every time I unplug the fridge so I assume it’s the water sensor somewhere that needs to be fixed in order to tell it to keep pumping water until it’s full?