Safety first: Unplug the ice maker and close the water supply valve.

Clean distribution system: Remove and clean the water distribution tray or spray bar, ensuring all holes are clear.
Descale grid/plate: Use an approved cleaner to remove scale from the evaporator grid or plate.
Check cycle timing: If adjustable, verify that freeze and harvest times are set to factory defaults.
Run multiple cycles: After cleaning, observe cube formation over several cycles to confirm improvement.

Ice maker produces ice, but cubes are irregularly shaped or broken.

Possible Causes