Last week my ice maker stopped receiving water in the tray to make ice. I checked the water dispenser in the door and it was working. I manually added water to the tray and the maker harvested the ice that was made. I then replaced the dual valve and the tray filled with half the amount of water and then did not harvetst the half tray of ice. I removed the ice maker and cleared the ice. I then manually added water to fill the tray and once it was frozen the ice was not harvested. Before I replace the icemaker I thought I would ask the pros. Any advice?