Water inlet to icemaker freezes up.

Removed the back panel from the lower part of the fridge to expose the valves and motor. Then the one screw holding the valve/bracket assembly was removed to free the assy. It took a few minutes to figure out how to remove the water lines - popped the colored plastic rings out with a screwdriver and removed the lines. Inserted the lines one by one as they were removed to keep correct orientation. Removed the two electrical connections and plugged into new valve. Installed assy with the one screw. Replaced back panel.