GE Monogram side-by-side all of a sudden will not stop making ice. We are now in the mode of turning off the ice maker until such time more ice is needed and then turn it on until it gets full again. I cannot see any obvious problems. The dispenser works fine for either cubes or crushed. I'm not sure I understand the mechanism that should be telling it that it is full. There is a horizontally flat swing arm under the ice maker, but I can't seem to understand its role in the process. Any help or suggestions would be welcome

To me this statement implies that the arm moves in a vertical fashion. The arm on mine is positioned horizontally flat and can only move horizontally on its pivot point.