Okay, it is likely a faulty water inlet valve that is causing your trouble. It is number 10 in the attached picture, part number(NNN) NNN-NNNN It is accessed from the rear of the machine, behind the cardboard cover. If you have water at the door, there is water to the valve. If the icemaker appears to be harvesting, thecontrol module is likely good. You state that the tube is not frozen, so that leaves only the valve, which has a fairly high rate of failure.