My ice making is not working properly. I am not getting water into the ice tray. I noticed that I had ice in the water line at the top of the freezer. I disconnected the water line and put a hair dyer in it and blew through the line to make sure it was clear but I still have no water in the bottom of the tray. I have opened the door and closed the optic reader and there is nothing but a solid light on the other side. Does anyone have any advice?