How to adjust the size of ice cubes?

Adjusting the size of ice cubes produced by a residential refrigerator automatic ice maker depends on your specific appliance model's design features. In many traditional modular ice makers, you can adjust the water fill volume by locating the small calibration screw on the front module head and turning it clockwise to increase water fill or counterclockwise to decrease it. In modern electronic ice makers, cube size is controlled automatically by programmed water valve timing relays, meaning that small cubes are usually a symptom of a restricted water filter or low water pressure rather than an adjustable setting. You can troubleshoot water volume easily. You can verify that your adjustment or filter replacement is successful when correcting water flow produces normal, full-sized ice cubes.