Before disconnecting the water line, unplug the
refrigerator to avoid an electrical shock hazard.
The
supply line runs from the water source, often under the kitchen
sink, to the water inlet valve behind the freezer. Another line
runs from the inlet valve to the ice maker. If the supply is pinched
or damaged, it may reduce or restrict water flow to the ice maker
resulting in small cubes or no ice at all. Water outside of the
freezer can be a result of a leak in the supply line.
Find the water supply line behind your freezer, it is usually either copper or plastic and it connects to the water inlet valve. Starting at the inlet valve, follow the tubing to the water source and inspect it for kinks or pinches that may constrict the flow of water or may be a source of a leak.
Before disconnecting the water line, unplug the
refrigerator to avoid an electrical shock hazard. 
