I first went on line and through YouTube found several possible causes- frozen water line in Freezer door, leak in cold water tank in the refrigerator, problem with the water-tank to freezer door water line. Per video instructions, I pulled the bottom on the refrigerator and found that the water fine from the tank to the freezer door had broken. An on-line chat with an AppliancePartsPros representative lead me to the correct parts and the video on how to fix my specific problem. Repair was quick and easy - all I needed was a screw driver and a razor blade and the Water Tank Tube and Union Connector which ordered and the repair itself took 30 min. Great to have water from the refrigerator again.