I have a ge fridge it has water and ice on the door. There appears to be a clog between the bottom of the door and where it comes out. I have disconnected the tube at the bottom of the door and when you press the button water comes out there. So the tube I am assuming is clogged. How do I replace it? I cannot see a way to get to it.

Have you tried blowing through the tube from top to bottom? Open valve where the water comes out and blow air through after you have disconnected the hose at the bottom.