I emptied the ice tray and now the ice maker isn't making ice. It has been awhile since I have emptied the ice tray. I pulled the ice maker out and it looks like the gears get stuck and stop turning. I can move it by hand and it will start rotating again, but then gets stuck again. If it gets stuck in the wrong spot it will allow the water to over flow the ice maker and leak all over. Not sure if I should just replace whole unit or just a part?