46+ How To Disconnect Dishwasher Today. Since electricity and water don’t mix well, you’ll want to start by turning the power off to your washer. Separate the countertop from the dishwasher. How to Disconnect and Remove a Dishwasher from www.thespruce.com To unplug a dishwasher, follow the steps below: To disconnect the dishwasher’s hose, use pliers; …