Ice Maker won't stop

My ice maker won’t stop. If I lift the arm to stop the water it is fine, but the part that pushes out the ice keeps moving. Because of this each time I have the water fill the tray, the little arms get stuck in the ice as it is freezing. I am not sure what to do or how to fix it. My husband thinks that we need a whole new ice maker, but I can’t seem to find a place to get one. I have no idea how to fix it and will try anything. I would appreciate any help.

Separate parts for this ice maker are not available. You have to replace the whole ice maker.

Here are the break down diagrams for the Amana refrigerator Model DRS2662AW

Gene.