Mark Y New Britain , PA March 27, 2020 Appliance: KitchenAid Dishwasher KUDS01DLBT3 Kitchenaid Dishwasher Kuds01dlbt3: The dishwasher was not cleaning as well anymore especially items on the top rack. How to replace Upper Wash Arm. I researched your site and viewed the troubleshooting guide pertaining to the symptoms. I found similar issues and several other write-ups from others that pointed me in the right direction. The how-to videos allowed me to disassemble and later repair with confidence. The chopper shaft was sheared and its screen was plugged with unprocessed chunks of food. This resulted in low water flow from the spray arms. I ordered the parts and received them in two days. I could not be happier. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes