Things to Know before Installing the Dishwasher

What You Need to Know to Install a Dishwasher

By Forrest Ketner

Gather all your supplies, and plan ahead before you are going to install your dishwasher. I have installed a lot of dishwashers and most of them are 24 inches. In small kitchens with limited space there is an 18 inch model obtainable. And it is essential to measure your opening and pay for the proper sized unit for your kitchen.
There are a lot of options available in dishwashers, get what your budget can pay for and one that is not too difficult to run. I have installed some that you required a degree in engineering to figure out how to use the unit. Check the energy ratings on more than a few units and pay for the one that is most economical. Here are the supplies needed before you install your dishwasher.

  • Power drill
  • Hole saw
  • Level
  • Screwdriver
  • Adjustable wrench
  • Tubing cutter
  • Wire nuts

Study your manufacturer’s instructions for the site of the power supply and drainage lines. A number of models are made very tight fitting and the water lines need to be in the right place so the dishwasher will fit in the opening. Remove the bottom panel to find the power connection, inlet solenoid valve and drain outlet. Tests fit the dishwasher in place and verify that the water lines are situated at the appropriate location. Slide the dishwasher out and set it aside.

Drill a hole for the supply and discharge lines this can be done with a 1 ½ inch drill bit. Connect the discharge line, water line and power line to your dishwasher. Slide the dishwasher into place. Level the dishwasher by adjusting the threaded feet. The door will open and close easily when the unit is level. The mounting brackets for the dishwasher should be aligned with the underside of the countertop and the side of the cabinet.

Turn on the water. Examine for leaks, and then tighten connections if essential. Substitute the sink drain tailpiece with one that has a side inlet. The drain line should be connected to the dishwasher outlet using hose clamps. Most discharge lines need to be mounted high in the cabinet to form an air lock for the dishwasher.

Connect the wires: connect white to white, black to black and the green to the ground screw. If the colors are different, read the manufacturer’s instructions for connecting the wires. Use wire nuts to connect the wires. Run the dishwasher through a test cycle to make sure it works properly. Now you can enjoy your new dishwasher.