You found a great deal on a new dishwasher, now to figure out how to get it working. Learning how to install a new dishwasher is one of the more complex home DIY projects. But our quick checklist will help walk you through it step by step.

Prep for Installation

Before removing the existing appliance, make sure you have all the parts and tools at hand.

No one wants to abandon a plumbing project to run to the hardware store. You’ll need:

  1. Dishwasher installation kit

  2. Drip pan or bowl

  3. Screwdriver and pliers

  4. Furniture pad or blanket

  5. Spirit level

  6. Masking tape

Remove Existing Dishwasher

Once you have everything you need, it’s time to remove the existing machine:

  1. Shut off power at the breaker

  2. Turn off water supply valve to the old machine

  3. Remove the access panel with a screwdriver

  4. Disconnect the wiring connections at the machine’s terminal box

  5. Remove the water supply line from the old machine

  6. Catch any water leaks with the drip pan or bowl

  7. Disconnect the drain hose from the old machine

  8. Remove the brackets holding the old machine to cabinetry

  9. Remove old dishwasher from the cabinet

  10. Secure the electrical wiring to the floor using masking tape

 

Prepping New Dishwasher

Before you can install the new dishwasher, remove it from the box and prepare it for connection.

  1. Remove dishwasher from the box and lay it down on its back onto the furniture pad

  2. Remove the front access panel on the new machine and open the installation kit

  3. Attach the included 90-degree elbow fitting to the new dishwasher water valve

  4. Remove the old water supply hose

  5. Route the new supply hose from the kit through the existing hole and connect

  6. Remove the old drain hose from the sink drain or garbage disposal

  7. Replace with new drain hose from the installation kit.

Installing New Dishwasher

Once you’ve replaced the old hoses with the new ones from the kit, you can install the new dishwasher.

  1. Slide the new appliance into place

  2. Connect water supply line to the 90-degree angle

  3. Tighten with pliers

  4. Test connection for leaks

  5. Connect new drain hose

  6. Reconnect the electrical wiring using the manufacturer’s instructions

  7. Secure Installation

Once you’ve connected the new machine, it’s time to move it into its final position.

  1. Make sure the unit is level using a spirit level

  2. Adjust the leveling legs if necessary

  3. Ensure front of dishwasher sits flush to the cabinetry

  4. Secure the dishwasher in place using the included brackets

  5. Replace the front access panel.

When to Call a Pro

This DIY project requires some strength and familiarity with hand tools. If you don’t feel confident installing a new dishwasher, you can make an appointment with the team at Benjamin Franklin Plumbing in Port St. Lucie. We’ll make sure your new appliance is properly installed and compliant with all local plumbing codes.