Product review (5 stars): Fixed my frozen icemaker water line problem
The icemaker on my Whirlpool fridge stopped working suddenly, and I discovered the problem was due to the water line freezing up.  I could defrost the water line in the freezer and get it working, but it would freeze up again.  My water valve worked -- if I applied power to it, the valve would open and let water through -- so it never occurred to me the problem could be due to the water valve, but googling indicated that I should replace the water valve.  Fortunately this water valve is cheap, so I ordered it and sure enough, after replacing it and defrosting my icemaker one last time, my icemaker is now churning out ice again.