Ordered a replacement ice maker. Removed the old unit by using 1/4” nut driver to remove screw from the bottom right rear of the unit and removed the clip holding the unit in place, disconnected the electrical plug and swapped out the unit. The cup that receives the water is taller than the original but you can flex the rubber inlet tubing enough to get the unit in place. Working fine now.
Before ordering the replacement I confirmed the “full bin” light beam was not the problem nor the inlet valve or that that supply line was not frozen, all other common problems.