Edward G Arnold , MO December 06, 2014 Not cleaning glasses on top shelf Replaced The conduit Carrier Mid, Conduit Spray Arm Mid and the Middle Spray Arm Assembly. All in less than 1/2 hour. Although, I think the main problem was the Conduit Carrier Mid which was distorted. By the way, I was surprised that I received my parts the very next day after I ordered them. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes