If you get water from the fountain, but none to the ice maker, swap the connectors on the valve. Now push the control for water. If you don't get water, replace the valve. If you do get water, the problem lies elsewhere in the system. We'll help you figure it out. Be sure to swap the connectors back when you're done testing it.

The fountain is the whole panel on the front of your refrigerator; specifically, the part that pertains to water. When we speak of the fountain, we normally mean the water dispenser. When we speak of the ice dispenser, we're referring to that part of the fountain that dispenses ice.

The connectors I refer to in my post are the electrical connectore at the back of the refrigerator, attached to the water valve.

If you don't have the fountain kit, remove the water valve from the back of the unit, but leave the water line attached to it. Remove the electric connector. Place the valve into a plastic container, like a pitcher or a bucket. Connect 120VAC to the terminals of the valve, using a "test cord" (an extension cord with the receptacle end cut off). Take care not to let the ends of the cord touch anything metal, or each other, except the terminals of the valve. Do this just long enough to see if water flows into the bucket. If water flows with your test cord, the problem lies somewhere else in the system.