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How to Install a New Dishwasher

Believe it or not, if you install a new dishwasher, you’ll actually waste less water than washing dishes by hand. That’s good for the earth and for your wallet. According to CNET, buying a new dishwasher model can save you money, even after factoring in the added electricity use. 

Don’t be intimidated by the installation process – in this how-to guide we walk you through it step-by-step, and show you how to swap out an old dishwasher for a newer, energy-efficient model. We’ll also show you how to install a dishwasher where there was none before. All told, the process should take no longer than a few hours and only requires basic tools, along with some other easily-accessible materials. (And remember, Puls can help

How to Prepare Your Space for a New Dishwasher 

How to install a new dishwasher: make sure to prep your space properly.There are four things necessary to install a dishwasher. If you’ve got those, you’re pretty much good to go. They are:

  • A properly measured space
  • Power supply
  • Water supply
  • A drain 

Almost all dishwashers will fit into a space that’s 34 inches high by 24 inches wide. If you are unsure whether your particular model conforms to this standard, you can check your product manual for the specifications. 

It’s also helpful to install a new dishwasher in a space that’s adjacent to the sink. That way, you’ll have easier access to the power, water, and drain necessary to run the machine. 

How to Remove an Old Dishwasher

How to install a new dishwasher: first remove the old dishwasher

If you’ve got an old dishwasher to remove prior to installing your new one, getting it out of the space is as easy as 1,2,3. 

  1. Shut the power off at the breaker. Open the lower kickplate, and disconnect the power cables by unscrewing the wire nut. If your old machine is a plug-in, simply unplug it from the power supply.
  2. Shut your water supply off. Then, slowly remove the water supply hose from the supply beneath the sink. Have a bucket nearby to empty any runoff still left in the hose. Then, do the same with the drain line, disconnecting it from the drain beneath the sink and emptying it into the bucket.
  3. Remove the dishwasher. Using a power drill, unscrew the brackets securing the top of the dishwasher to the counter. Raise the bottom legs of the dishwasher by turning them clockwise, then begin to pull the machine forward. 

It’s a good idea to have some cardboard or Masonite on the floor to help make pulling the machine out smoother. Secure the hoses and power line to the top of the machine with zip ties or tape, and finish pulling the machine out of the cavity. 

How to Install a New Dishwasher or Replace an Existing Dishwasher

How to install a new dishwasher (or replace an existing one) one)As long as that 34x24 inch space is open, at this point it doesn’t matter if you’re installing a new dishwasher or replacing an old one – the process will be largely the same. You’ll still need those same ingredients: a power supply, water supply, and a drain, in addition to a properly sized opening for your dishwasher.

If you did not have an electrical outlet close to your old dishwasher, or if there is not one nearby the new dishwasher you’re installing, you will want to call a professional to install an outlet. The most convenient place for the outlet for this purpose is underneath the sink, where the water supply and drain hoses will be going, as well. 

  1. Place the machine on the cardboard or hardboard to make it easier to slide into the cavity, then attach the water and drain hoses to the back of the machine while it’s still outside. Make sure the power cable is attached as well.
  2. Feed the three lines through the back of the cavity into the space beneath the sink. Then, push the machine into the cavity while pulling the three lines into the sink area to prevent slack from building up behind the machine. 
  3. Connect the water and then slowly turn it on, making sure there are no leaks. Then, connect the drain hose to the corresponding spigot beneath the sink. 
  4. Level the dishwasher by adjusting first the back legs, then the front legs, by turning them counterclockwise (or clockwise, as needed) by hand. Then, secure the dishwasher to the counter with the included brackets, using a power drill.
  5. Plug in the power, test your new machine out, and install the lower kickplate. 

Puls Can Install All of Your Appliances as Soon as Same Day

If you're still not sure how to install a new dishwasher, it's time to call in the professionals!Photo by Milly Eaton from Pexels

We’re rapidly expanding our handyman service area, and that means we’re providing more appliance installations to satisfied customers every day.

What’s more, we offer appliance repair nationwide. We fix washers, dryers, refrigerators, ovens, and more, and, with our easy online booking, you can schedule a time slot in just moments – usually for that very same day. And with our 90-day guarantee on parts and labor, you can be sure the job is done right.

So, what are you waiting for? Have a certified Puls technician (dish)wash your problems away.

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Jake S.
Jake S.
Jake Sherman is a professional writer with a background in journalism. He is fascinated by home appliances and how they work. He enjoys breaking down complex topics and explaining them in interesting ways. He has been a Puls staff writer for two years. When he's not writing, he enjoys trotting around the globe, trying unfamiliar foods, and testing unmarked doors to see if they're locked.

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