I bought a # AP418132 Heat Release Ice Maker Kit to replace my twist tray style. The new unit overfills the unit and ejects multi-cubed ice globs. According tothe instructions, the fill adjustment screw should be turned down. However, the instructions do not show exactly where the adjustment screw is located on the unit. There are 3 plastic slotted screws that I can find on the unit. As you are looking at the front of the unit, there is a small one on the upper right side, 1 on the front upper right corner (connects to the shutoff arm) and 1 on the front middle to right of center.