Arthur B Ashburn , VA July 15, 2020 Appliance: Bosch Dishwasher SHX65T55UC/07 Bosch Dishwasher Shx65t55uc/07: E 23 error code dishwasher did not drain. How to replace Dishwasher Check Valve. Replaced drain pump and check valve. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes