Originally Posted by ttsnuffy
My ice maker is not working because the supply tube piercing through the back wall of the freezer keeps freezing up. When I remove it and clear the ice, it is full of ice again in less than a day, so I basically get the first tray of ice and then no more. When I undo the supply tube coming up from the valve everything seems to work fine; the water flows out strong and then shuts off in the appropriate time. I have tried to turn the temperature down in the freezer to the point that food starts to soften and still this happens. I have tried to wrap the supply tube with pipe insulation but that has made no effect on the problem.
Usually, the issue, that causes this problem is the water valve on the back side of the refrigerator is letting a little water through, and it freezes up in the tube. Replace the valve, and get some plumbers putty, and make sure you cover the tube where it goes in the back of the refigerator. Sometimes you can get some air in there, and it would cause it to freeze up. So basically try it first. If it does not work, replace the valve. Tom Appliance Educator, Appliance Parts, Washer and Dryer Parts, Refridgerator and Freezer Parts, Stove and Oven Parts