I have the same problem. What I discovered is the water line is freezing inside the freezer door. If you face the open freezer door it runs up the right inside. I have to use a hair drying and run it up and down the door several minutes to thaw it out. Also if We go away I turn of the water because the water despencer turns the water on all buy itself. I reported it to a GE repairman and his answer was if it happens again just open the door and it will stop. But I hope I'm home when it happens.