Download Article Explore this Article methods. Things You'll Need. Related Articles. Method 1. All rights reserved. This image may not be used by other entities without the express written consent of wikiHow, Inc.
Evaluate the intended cabinet space for your chosen dishwasher. Built-in dishwashers are typically designed to fit in a standard cabinet width—24 in 61 cm in the U. Drill holes into the dishwasher side of the sink cabinet, if needed. Use a power drill with a hole saw bit to cut the holes. Make sure the current is shut off to any electrical wiring for the dishwasher. In most modern panels, just flip the appropriately labeled switch to the off position. Some models require you to touch each wire to test them, while others only require you to hold the tester close to the wiring.
Many dishwashers, especially newer models, make the connections for the electrical, water supply, and drain lines at the lower front of the appliance. Others, however, including some newer models, make the connections at the rear of the appliance. Read the manual to determine which is the case for your dishwasher, because it will impact how you install the appliance.
For a dishwasher with rear hookups, you need to finalize the connections before sliding the appliance into place. Method 2. Turn off the hot water supply line in the sink cabinet. Dishwashers normally connect to the hot water supply line under the kitchen sink. Reach into the sink cabinet and turn the hot water shutoff valve clockwise, then open the faucet to let any excess water drain. Consult the product manual for clarification.
One outlet connects to the faucet, while the other is for the dishwasher supply line. Run thread seal tape often called Teflon tape clockwise over the threads of the open outlet, hand-tighten the supply line on the outlet, then use a wrench to tighten the supply line another quarter-to-half turn. Disconnect the supply line to the faucet, then attach the dual outlet valve to both the hot water line and the faucet supply line.
Use thread seal tape, hand-tighten each connection, and give a quarter-to-half turn with your wrench. If there was previously a dishwasher hooked up, or if your sink was plumbed with the intention of hooking up a dishwasher, there will already be a dishwasher tailpiece in place. Buy a replacement P-trap section that includes a dishwasher tailpiece, and connect it in place—once again, hand-tightening is sufficient for PVC.
Slide one end of the flexible drain line firmly over the stubby dishwasher tailpiece. This will create an upward arch in the drain pipe that rises above the tailpiece connection. This arch prevents drain water from backing up into the dishwasher. This is a more complicated procedure that may be best left to a professional plumber. Method 3. Secure the utility lines so they run under the center of the appliance. For a dishwasher with front hookups, run the water, drain, and electrical lines along the floor from the back of the dishwasher cabinet bay to the front, centered under the appliance.
Make sure each line extends roughly 6 in 15 cm beyond where the front of the dishwasher will end up, and use tape to secure the lines to the floor underneath where the appliance will be. Instead, make sure each is long enough that you can tie them into the back of the dishwasher before you push it into its final position in the cabinet bay.
Adjust the feet of the dishwasher to set it at the proper height for your countertop. Built-in dishwashers are designed to fit nicely underneath the kitchen countertop, the bottom of which is typically Use the adjustable feet on the dishwasher to fine-tune the height of the unit, but leave a small gap—as recommended by the manufacturer—so you can secure the dishwasher to the underside of the countertop.
Turn the feet counterclockwise to increase the height and clockwise to reduce it. In the U. Slide the dishwasher into place and fine-tune its height and positioning. Push, wiggle, and maneuver the bulky appliance into the cabinet bay until the front of the dishwasher is flush with the front of the surrounding cabinets.
Use the front feet to make slight adjustments as needed. Remember that you need to finish the utility hookups before installing the dishwasher if you have a rear hookup model.
Method 4. Connect the water supply line to the dishwasher. Use the product guide to locate the water supply hookup at the bottom front of the appliance. Wrap thread seal Teflon tape around the water inlet connection, then tighten a right angle elbow to the inlet by hand and with a quarter-turn of a wrench. Wrap tape and tighten the connection between the right angle elbow and the water supply line in the same fashion.
You might get one with your dishwasher, or need to buy one from a home supply store—check where other dishwasher plumbing supplies are sold. The installation is the same with a rear hookup dishwasher, other than the location. Secure the drain line to the appliance with a hose clamp. Locate the appropriate hookup stub for the drain line, then press the flexible tube over the stub.
Connect the electrical wires to the dishwashing unit. Some dishwashers may be set up so that you can simply clip the wires inside the line in place. If not, do the following: [14] X Research source Attach the black hot wire to the black wire in the box by twisting them together with an electrical wire nut.
Secure the white neutral wire to the white wire in the box with another wire nut. Wrap the ground wire usually green securely around the ground screw in the electrical box, then tighten the screw over the wrapped wire. Tuck the secure connections into the dishwasher electric box and close it. It may have screws to keep it securely closed. Secure the dishwasher to the cabinet with the provided clips. Check one last time that the appliance is level , even, and in its proper spot, then attach the mounting brackets at the top of the dishwasher to the underside of the countertop.
Mark the spots for the screws, pre-drill pilot holes into the underside of the countertop, and use a screwdriver to twist the screws into place. Patrick Babcock. This will differ, depending on the size and features of your unit, and will be specified in your unit's installation manual. It is likely also listed on a label inside the jamb area of your unit's door.
If you cannot locate either a tag or a manual, check the manufacturer site or a retailer's site for more information. Yes No. Not Helpful 0 Helpful 6. When having a garbage disposal and dishwasher, does the sink need to have an aerator?
Fresh water enters the dishwasher by means of either a steel braided flex hose or rigid copper tubing connected to the household water supply, ideally with a separate shutoff valve. Dirty water is drained from the appliance via a flexible line attached between the dishwasher and a suitable connection beneath the sink, such as a fitting on the garbage disposal or on the drain line feeding into the sink trap.
In some areas, building codes require a device called an air gap to physically prevent a direct connection from ever forming between the sewer and the dishwasher's drain line. Most dishwashers have a pair of mounting brackets on top that are designed to be screwed securely to the underside of the cabinet or countertop. On some models it's also possible to relocate the brackets to the side of the dishwasher cabinet. In the case of a stone countertop, there are kits available for attaching mounting points directly to the stone with epoxy adhesive, or a narrow strip of wood or metal is sometimes installed across the top of the dishwasher opening instead.
Whichever method you choose, don't skip this important installation step. A fully loaded dishwasher can cause all sorts of damage if it tips forward out of its enclosure. Steve Hamilton has been writing professionally since His credits include novels under the Dell imprint and for Harlequin Worldwide. A remodeling and repair specialist with over 20 years experience, he is also a Certified Pool Operator and holds an EPA Universal refrigerant certification.
By Steve Hamilton Updated December 14, Related Articles. Hometime: Remodeling Kitchens. Free Standing.
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