Brad F Manitowoc , WI November 13, 2021 Appliance: Maytag Undercounter Dishwasher MDB7749SAB1 Maytag Dishwasher Mdb7749sab1 / : Noisy and would not circulate the water. How to replace Circulation Motor. New circulation motor. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes