Ice Maker quit making ice

First I shut off water supply and drained line. Then I unplugged power to refrigerator. I then removed the back lower cover from the refrigerator and removed the water supply line from the water valve. I then removed the water valve from the unit then removed the wiring harness from the assembly. Then I cut the plastic lines from the old valve assembly and inserted them in the new valve assembly, one at a time to avoid crossing lines. I reinstalled valve assembly and rear cover on the refrigerator. After turning on the water and plugging in power it took a bit for the air to work itself out of the icemaker supply line.