Refrig. Side not cooling enough

Replaced several things: evaporator fan motor, defrost heater element & defrost timer. The motor was the key problem but did the other repairs because they are common failures and are easy to replace and are not that expensive. Changing the motor was tedious because of tight access to it. Took about 2 hrs for me. Fan is working properly but not have a problem with water to ice maker not shutting off. I'm researching that problem. (I replace the water valve 2 hrs ago. That was a simple task - took 15 mins.)