Product review (3 stars): If freezer defrost doesn't work, start with the defrost switch.
My freezer now gets cold at the top and the refrigerator gets cold. Although there is a lot of ticking noise comming from the new control, I wish I had started replacing parts with this. I am worried that this is the fourth generation switch. Not sure what the problem is. The installation was simple including the wiring harness. Seller shipped quick which was a big plus.