Small cubes usually mean the ice mold is not receiving the expected amount of water or the fill is being interrupted.
Possible causes
- Restricted or overdue water filter
- Kinked supply line or low household water pressure
- Frozen or misaligned fill tube
- Restricted self-piercing saddle valve
- Water inlet valve or ice maker fill problem
- Ice maker not level
Check for obvious line kinks and follow the manufacturer’s filter instructions. Water-valve and timed-fill diagnosis usually requires model-specific testing.