Richmond Virginia Plumbing

How to Remove & Install a Dishwasher

Posted on April 27, 2021 in Kitchen

There are times when home improvement or renovation projects can be a lot cheaper if you do them yourself. Some projects require a professional, while others are relatively straightforward if you have the right tools. And one home improvement task that is DIY-friendly is removing an old dishwasher and installing a new one.

We’ve written this guide to help you replace your dishwasher from start to finish. The whole process is fairly quick and can be completed in just an hour or two. The true cost lies in the new dishwasher you choose to install and the tools required for removal are likely found in your toolbox.

Dishwashers range in price widely as there are many options and features available. A new dishwasher can run you anywhere between $330 to $1,900 depending on the model you choose.

How to Remove a Dishwasher 

First, you’ll need to remove your old dishwasher. Before you get started, gather some supplies like a wrench set and various screwdrivers. It’s a good idea to have an electrical tester as well.

1. Turn off the water shut-off valve under your sink or at the water main

To avoid water leaking, be sure to cut off the water supply. There is usually a shut-off valve underneath your kitchen sink, but it’s also wise to shut off the water main as a whole.

2. Turn off the electrical connection

This step is extremely important. You’ll be working with an electrical appliance, so you’ll want to be sure that the electricity is shut off at the breaker.

3. Unscrew your dishwasher’s bottom panel and L brackets

You need access to the connections underneath your dishwasher, so you’ll want to unscrew the panel that covers this. In addition, you need to unscrew the L brackets that hold your dishwasher in place.

4. Disconnect the dishwasher’s electrical wiring

Once you have access to the connections, disconnect the electrical source from the dishwasher. It is good practice to always use an electrical tester to make sure there are no live wires that you are working with.

5. Pull out the dishwasher — shortening the feet if necessary

Once the electricity is disconnected, you should be able to slide the dishwasher out from under the cabinetry. You may have to shorten the height of the dishwasher, and this can be done by shortening the metal feet.

6. Disconnect the plumbing from underneath your dishwasher

Next, you will disconnect the plumbing from underneath your dishwasher. This usually includes the drain line, the water supply, and sometimes a disposal connection.

7. Remove the dishwasher

Now, you’re ready to fully remove the dishwasher. Congratulations! The removal is complete.

8. Replace drain hoses if desired

Your drain hose can begin to smell over time, so you may want to take the opportunity to install a new drain hose.

New Dishwasher Installation  

This next stage of the process requires installing your new dishwasher. Luckily, the installation process is essentially the exact reverse of the removal process.

1. Attach your new drain line

You’ll start by attaching the drain line to the attachment on the new dishwasher.

2. Attach the water line

Next, attach the water line so your dishwater has a source of running water.

3. Push your dishwasher in place

After attaching the water and drain lines, you can push the dishwasher into place. Adjust the height of your dishwasher via the feet so it fits snugly underneath your cabinetry.

4. Screw in the new L brackets

Attach the dishwasher to the cabinetry by screwing it into the cabinetry with the L brackets.

5. Reconnect electrical power

Now, you’ll want to access the bottom of your dishwasher to reconnect the electrical lines. Again, be sure that the electricity is shut off at the wall and check to make sure there are no live wires.

6. Turn on your water main and electrical breakers

Next, turn everything back on! First, turn on your water main and shut-off valve, then reactivate your electrical breakers.

7. Check for leaks and run your new dishwasher

Before you close the bottom panel, take a quick look for leaks and make sure everything is running according to plan. Now, start up your dishwasher to check for proper functionality.

You can always give us a call if you get stuck, and our expert technicians can help you through the process.

Making More Repairs or Upgrades?

Since you’re already installing a new dishwasher, you may want to consider making a few more upgrades in the kitchen. If you’re planning to replace your garbage disposal, look no further. We’ve got a guide to help you through the process.

How to Install a Garbage Disposal

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