ice maker not working

It turned out the water valve was not the problem but I think it works a bit better with the new one. I had replaced the main part of the icemaker inside the freezer which had lost the smooth finish in the ice tray. It worked for awhile but quit.
What had happened was the large approx. 1/2 inch tube going from the back of the refrigerator to the icemaker tray became plugged with ice. It was difficult to get it out due to the ice but once I did it was easy to melt it and put it back together. All's well that ends well and avoid the cost of a repair call. Working great now.