How to Install a Dishwasher

A step-by-step tutorial on removing an old dishwasher and installing a new one provides practical tips, common pitfalls to avoid, and insights from personal experience to empower homeowners to complete the project themselves and save money.

Picture this: It’s a typical morning, and you’re staring at that old dishwasher. It’s been acting up for weeks, and you’ve had enough. 

You could easily call a professional to install the new one, but this project is something you can do yourself to save money.

I’ll be walking through the steps you need to take to install a new dishwasher in your home. 

Whether you’re a seasoned DIY enthusiast or a newbie, this tutorial is tailored to make the process easy. So, let’s dive in!

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Preparations Before You Begin

Before we get into the nitty-gritty of the installation process, it’s important to be well-prepared. Here are some tips on getting ready for the job:

1. Purchase an Installation Kit: Most dishwashers require some extra fittings. I usually buy a universal dishwasher installation kit that includes all the necessities. This makes sure I’m not running to the store in the middle of the project.
2. Turn Off Utilities: Turn off the power to the dishwasher by flipping the circuit breaker and shut off the water supply line. Trust me; it saves a lot of mess!

STEP 1: Remove the Old Dishwasher

1. Disconnect the Drainage: 

Your old dishwasher will be connected to a drain. In my case, it’s a garbage disposal. Remove the connection carefully.

2. Disconnect the Supply Line: 

Open the bottom panel of the old dishwasher and locate the supply line. Use a wrench to disconnect it.

Pro Tip: Make sure you turn off the water supply before you start disconnecting. I learned this the hard way with an unexpected puddle!

3. Disconnect the Power: 

If your dishwasher is hardwired, like mine, you’ll need to disconnect the electrical wires. Usually, these can be found under the bottom panel as well.

If your dishwasher uses a plug, unplug the cord. 

4. Unscrew and Remove: 

Once all connections are disconnected, look for screws that are holding the dishwasher in place. 

The screws will be at the top or sides of the dishwasher. 

Unscrew them, and carefully pull out the dishwasher.

STEP 2: Prepare the New Dishwasher

1. Check the New Dishwasher: 

Open the box of your new dishwasher and inspect it for any visible damages. Make sure you also have the installation manual.

2. Install Necessary Fittings: 

Now is a good time to attach any additional fittings your dishwasher requires (supply line fitting, drain hose, electrical plug, handle, etc.)

Side Note: Always replace the supply line when installing a new dishwasher. Supply lines tend to wear out, and it’s better to be safe than sorry.

3. Put the Dishwasher Into Cabinet: 

Once all your fittings are in place, slide your dishwasher so that it is 6”-12” inside the cabinet space.

STEP 3: Connect the Water Supply

Use a wrench to attach the new supply line to your dishwasher. Make sure it’s tightly secured to avoid any leaks.

STEP 4: Connect the Power Supply

If your dishwasher is hardwired, attach the electrical wires according to the instructions in your installation manual.

Or if your dishwasher is a plug, plug it into the outlet. 

STEP 5: Final Installation Steps

1. Fit Into Cabinet: 

Once all your connections are made, slide your dishwasher all the way into the cabinet space.

2. Level the Dishwasher: 

Ensure that the dishwasher is level before securing it to the cabinet. 

This might mean that you need to adjust the feet on the dishwasher. 

3. Secure the Dishwasher: 

After the dishwasher is level, locate the brackets or holes where your dishwasher will be secured to the cabinet.

Screw it in place.

SIDE NOTE: Make sure to break the brackets to the right size before securing. Learn from my mistake because you will damage your cabinet.

4. Run a Test: 

Before closing everything up, turn on the water to make sure there are no leaks. 

If you don’t have any leaks, turn on the power and run an install cycle (the install manual will tell you how to achieve this). This is to ensure there are no leaks as well.

5. Attach the Bottom Panel 

After confirming there are no leaks, go ahead and attach the bottom panel back on.

FULL PROJECT VIDEO:

Are you someone who does better with visuals? Check out the full project video on how to install a dishwasher below, and don’t forget to subscribe on YouTube so you don’t miss out on future projects!

Congratulations, you’ve successfully installed your dishwasher! If you’re like me and only do this once every ten years, always remember to give yourself adequate time for the job. It might seem daunting at first, but with some patience and this step-by-step guide, you’ll get through it. Happy washing!