If your refrigerator's water dispenser isn’t working because of a frozen water line, here’s a quick fix using the "Waterline Buddy" from Amazon: Heat up two cups of water in the microwave for one minute. Put the frozen water line into the warm water and use the syringe to draw the warm water into it. Insert the syringe into the water dispenser gently until you feel resistance, and place a towel underneath to catch any excess water. Slowly press the syringe to backflow the warm water into the frozen line until the blockage is cleared. This might take a couple of tries. Reconnect the water lines and test the dispenser.