DIY Network

How to Remove and Replace a Dishwasher

With so many moving parts and water seals, dishwashers can break or leak in a lot of places and damage the floor underneath. To simulate a dishwasher disaster, we had a tanker truck flood our dishwasher with more than 800 gallons of water.

More in Kitchen

Watch Video
  • Time

    Under Half Day

  • Price Range

    $250 - $500

  • Difficulty

    Moderate to Hard

Highlights:

Step 1: Remove Existing Dishwasher

Turn off the water supply and electrical breakers. Disconnect the drain and fill lines underneath the sink. Remove the dishwasher door by unscrewing the hinges and cutting the electrical cords. Unscrew the toe kick and remove.

Cut the electric lines connected to the back of the dishwasher and disconnect the drain and fill lines from the bottom of the machine. Leave the drain and fill lines, as well as the electrical wires, underneath the cabinet. If undamaged you can use the same connections with the new machine. Remove cabinet-mounting screws then slide the dishwasher out of place.

Step 2: Inspect Drain Lines

Inspect the drain and fill lines for cracks, if there are any, the lines will need to be replaced. If the dishwasher is old, it’s best to replace the lines to prevent future leaks.

Step 3: Prep the New Dishwasher

Most new dishwashers come with a layer of insulation wrapped around the unit. Do not remove this as it acts as a sound barrier. Carefully tip the dishwasher on its back. Remove the panel at the bottom of the unit. Attach the elbow joints to the fill valve and drain lines. Wrap the threads of the joints in Teflon tape to create a water-tight seal. Wrap the Teflon tape in a clockwise direction to ensure it does not unravel when attaching the elbow joint. Make sure the elbow joints point towards the front of the dishwasher so that the fill and drain lines can be easily removed if service is required.

Step 4: Install New Dishwasher

Reconnect the electrical and water supply lines and turn the dishwasher upright again. As you move the dishwasher back into place, feed the drain and fill lines into the space beneath the sink (Image 1). If there is a large gap between the cabinet and unit, adjust the height of the dishwasher legs (Image 2). Secure the dishwasher to the underside of the countertop by screwing it into place through the clamps located on the top of the machine. Once installed, turn the water back on and run a cycle to check the lines for leaks. When testing your new machine for the first time, don’t be alarmed if it doesn’t make a sound. Every dishwasher starts with a drain cycle. Finally, replace the toe kick at the bottom and remove the protective tape from the machine.

DIY Experts

House Crashers

Josh Temple shows ambush renovation at its best.

Tune in:

Thursdays

10/9C

Full Schedule

Was this project helpful?

Don't forget: Read comments and leave your own

Advertisement

Projects

COMMENT ON THIS PROJECT

    

Sign in

All fields are required.

E-mail Address:

Password:

Remember me on this computer

Signing in

Please enter your email address and we will send your password

E-mail Address

Your password has been sent and should arrive in your mailbox very soon.

Not a member?

Sign up with DIY Network to share tips with other do-it-yourselfers and comment and ask questions on projects.

It's free and easy.