Julie M Clermont , FL May 27, 2016 Appliance: Maytag Dishwasher MDB4100AWW Maytag Dishwasher Mdb4100aww: Replace water inlet valve on ge dishwasher. How to replace Dishwasher Water Inlet Valve. My son and husband removed the old water inlet valve and replaced it. Didn't quite go as easily as planned (found out there is a separate water source for the dishwasher that didn't get turned off) but they got it finished pretty quickly. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes