DP3880XMW0 Whirlpool Dishwasher - Instructions

Turn off the breaker to the dishwasher - there will be water very near the motor and other electrical components. I first scooped and towelled all the water out of the bottom of the dishwasher. The drain valve can be accessed from the bottom front of the dishwasher without pulling the unit out from under the counter. There were 4 screws to remove the 2 bottom metal panels. Next use pliers to loosen and slide back the hose clamp connected to the drain. Have a towel ready and pull the drain hose off the white check valve. The check valve can then be removed by unscrewing it - you may need to use pliers. Put the new one on and everything back together.