Thanks for the question about your fill tube freezing up and blocking water supply to the ice maker, sorry you are having this problem.
Based on your description of the problem, I think that your water inlet valve is weeping. This means that a very small amount of water is passing through the valve constantly. Your inlet valve is a triple valve that supplies water to the ice maker and the water in the door, one to filter. The triple valve has three solenoids and three separate diaphragms and flow washers. If one side fails you must change the entire valve. ( valve located on back side of unit where water supply connects)
One thing that could cause the valve to malfunction would be very low water pressure
supplied to the valve from your household supply, check the flow from the wall connection behind the refrigerator before changing the part.( Minimum PSI is 20 Max. 120 PSI)
And last if there is a air leak around the fill tube from the back of the refrigerator it will cause the tube to freeze up quickly, check for frost around the tube and surrounding areas.
I hope this helps, if you need additional assistance please reply with added details and I will be happy to respond.
If you get to the point where you need to have a service technician diagnose and repair this failure, you can schedule service through this link:
[Sears Home Services |