The ice maker on my GE model GSS25LG Refrigerator Freezer(side by side) is freezing over and not making ice. The water line is not frozen because water runs down the back of the freezer and freezes in the back. The dispenser motor freezes also and does not dispense ice. I have shut the water off and turned the temp to the warmest temp. I was attempting to take the ice maker out but wanted to know what to look for. Any suggestion on what the problem may be and how to fix it? Thanks