Walter T Olney , MD October 13, 2019 Appliance: General Electric Dishwasher GSD2220F00BB Ge Dishwasher Gsd2220f00bb: Pump motor humming, locked up. How to replace Pump Seal And Impeller Kit. Watched video on replacing the pump seal and impeller kit. I wanted to see if something was restricting the impeller. I did not have a leak but I figured if I took it apart to hopefully free up a restriction I should install a new kit. Fortunately it did the trick and watching the video made the job go smoothly. To replace the motor and pump assembly would cost half the price of a new machine. I fixed it for less than $30. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes