I watched the videos on the kinds of repairs that might be needed. I selected what I thought was the correct part from the diagrams, and checked it was the one that went on my model fridge. When the part arrived (a solenoid valve), I installed it according to the video. It went in quickly and simply. Since the part in the video was different than the one I installed, I opened a live chat with a service representative. I noticed that the my fridge seemed to have water tubing different than the diagram. The rep clearly took some time to research an answer to my confusion. She told me to check the water inlet to the ice maker. Because I had watched the video on ice maker removal earlier, I was able to perform the removal in just a few minutes. The inlet had indeed frozen, indicating a weeping valve. Thus, I actually had installed the correct part. I turned everything back on, and had ice a couple of hours later.
The live chat was an excellent tool to help me progress through a solution. The representative was timely, polite, and completely to the point. I will purchase here again should the need arise.