How to Replace a Dishwasher

By Gene and Katie Hamilton

Tools Required
  • Slotted screwdriver
  • Phillips head screwdriver
  • Adjustable wrench
  • mall pipe wrench
  • Putty knife
  • Wire cutter/stripper
Materials Required
  • Dishwasher
  • Teflon tape
  • Dishwasher ell (optional)
  • 5/8-in. dishwasher
    hose (optional)
  • 3/8-in. soft copper
    tubing (optional)

Before You Begin

Follow these instructions to do the job yourself but if you don't want to get involved doing the job, click Home Advisor and find prescreened qualified plumbers in your area to do the job.

  • Step 1 : Loosen the dishwasher from the cabinet

    Loosen the dishwasher from the cabinet

    To remove the old dishwasher, turn off the water and switch off the electrical supply to the unit at the main service panel. Most units are held in the cabinet by brackets attached to the framing. Open the dishwasher's door and examine the junction between the dishwasher and cabinet. Locate the brackets and remove the screws securing the brackets to the cabinet.

    Remove the trim panel from the bottom

    Usually there is a piece of trim applied over the base of the unit. It is a rubber or vinyl molding held to the base with mastic that often bridges the dishwasher base and extends over the bases of the other cabinets. Pry it off with a putty knife and save it to reinstall it

  • Step 2 : Remove the water supply piping

    Remove the water supply piping

    The water supply piping is usually located under the base of the unit so you may have to remove a metal plate that covers the area. Attach the 3/8-inch diameter water supply to the water control valve. Place a saucer or small plastic bowl under the valve to catch any water and then loosen the fitting and remove the tubing.

  • Step 3 : Remove the drain piping

    Remove the drain piping

    Remove the drain hose from the dishwasher at the sink drain and pull the dishwasher out of the cabinet as far as it will go. You may have to push some of the drain hose into the dishwasher's cabinet to allow the unit to slide forward. Then remove the drain hose that is attached to the underside of the dishwasher.

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