Our GE side by side water dispenser worked wonderfully until about 4 years ago when the water line started freezing. Then it was once or twice a month and now it's every day. In the past, I would leave the freezer door open for a while and it would melt, but found I had to leave it open for longer periods. I finally found this answer board and read where the line was freezing. Thank you! The line was froze again today. So, after cursing it out, I took an old infant snot sucker, filled it with the hottest tap water I could stand, shot the hot water straight up into the dispenser until I no longer had to struggle to force it through. Line isn't frozen and water came out with a few flakes of mold. In the past I had forced hot water and vinegar up the line from the bottom and gotten mold as well. I hope this cheaper and quicker solution helps someone.