dishwasher installation

Like any task, the devil is in the details, and the same applies to a dishwasher installation. Even experienced do it yourselfers will tell you that it’s not an easy process.  If you’re considering installing your dishwasher yourself, the following information will help.

Dishwasher Installation Steps

Step 1

Cut the power to the circuit, shut off the water that feeds the dishwasher and unscrew it from the underside area of the countertop.

Step 2

Remove the base plate on the new dishwasher (located on the front), allowing access to the electrical box and supply lines.

Step 3

Connect one end of the drainpipe to the discharge pump, mount the air gap to the sink and connect the drainpipe to the air gap. If there aren’t any holes available in the sink for the air gap, you’ll need to cut a hole in the countertop. If your model doesn’t require an air gap, you’ll need to pull the drain hose up, attaching it to the cabinet wall to keep backflow from entering the sink. If you have a garbage disposal, connect the opposite end of the drainpipe to it, using a clamp to attach it to the inlet. If you don’t have a garbage disposal, connect the drain line to the branch tailpipe you’ll find under the sink where your old dishwasher connected to the drain.

Step 4

Connect the water supply line to the shut-off valve and water inlet underneath the dishwasher. It’s also recommended to wrap Teflon plumber’s tape around threaded ends to establish a firm seal that will help prevent leaks. Tighten up the supply lines using a wrench.

Step 5

Using wire nuts, connect the cable to the electrical box on the dishwasher; match the white and black wires. Next, connect the green wire to the ground screw.

Step 6

Turn on the water and power to the dishwasher, running it through a cycle and watch for leaks. If you don’t run into any problems, slide the dishwasher into place and attach it to the underside of the counter.

Not sure you can install your new dishwasher on your own? Let Quail Plumbing take over! Contact us today to learn more.

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