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How to Remove a Dishwasher and Install a New One
Posted By Ethan On August 3, 2010 @ 7:00 am In Kitchen,Kitchen,Plumbing,Plumbing,Project Guides | 11 Comments
This past weekend, we took a few hours to install a new Kenmore Elite dishwasher. We’re really pleased with it thus far, but we thought we’d give it some more time before writing a full review of the dishwasher itself. The installation of a dishwasher is actually a very straightforward matter. It’s a great project for DIYers of all skill levels. Read on for our instructions for removing and installing a dishwasher in your own home.
We grabbed a handful of tools from our workshop. Here’s the minimum tools and materials you’ll need.
Most new dishwashers have a 3/4″, threaded inlet; while most supply lines are 3/8″. If this is the case in your situation, you’ll need an additional part called a 90° dishwasher adapter (or dishwasher elbow , like that one) to connect the supply. Some dishwashers come with this part, so check the installation manual.
Step 1: Shut-off the power to the dishwasher.
Your main electrical panel or fusebox should have a dedicated breaker or fuse for the dishwasher. Flip the breaker to the off position or remove the fuse.
Step 2: Shut-off water to the dishwasher.
The water supply for a dishwasher is commonly joined with the hot water for the kitchen sink. Close the valve under the sink headed to the dishwasher. If you do not have a valve under the sink dedicated to the dishwasher, you may want to install one during this installation. Instead of plumbing an entirely new valve (which will require sweat soldering  a new T-joint and valve), you may be able to install a dual stop  valve on the existing line, which replaces the existing stop and adds a new valve outlet for the dishwasher. These valves avoid additional sweating, which is a nice plus.
If you are having trouble getting the water to turn off, you may need to turn off water at the main for the house, or you’ll need to turn it off at the street  as a last resort. If you are in this situation, we recommend replacing the main water valve  for the house before you start.
Step 3: Remove the access panel cover.
At the very base of every dishwasher is an access panel. The cover to this panel is held in place by two screws, one at each end. Use a screwdriver to remove the screws and the panel, revealing the underside of the dishwasher.
Step 4: Unwire the existing electric.
Most dishwashers locate the power junction on the right-hand side, often within a small box. Remove any screws necessary to gain access and verify that the power is off with your multimeter (or other testing device). Remove the wire nuts securing the black and white wires. Loosen the ground screws and disconnect all the wires. There may be a de-tensioning device on the back of this junction box that you will also need to remove.
Step 5: Disconnect the water supply.
The water supply connection is probably located on the left-hand side of the underside of the dishwasher. Look for 3/8″ tubing (flexible plastic, steel-reinforced rubber, or copper) that resembles the line you shut-off underneath the sink. Use the pliers to loosen the compression fitting. Have some paper towels or rags on hand to soak up any water that spills out.
Step 6: Disconnect the dishwasher drain.
The next connection to remove is the drain. This is a flexible plastic tube that will connect to your kitchen garbage disposal. It’s usually held in place with a band-clamp or spring-clamp. Use the nut-driver or pliers to loosen the clamp and disconnect the drain. Again, have paper towels or rags nearby for any water that spills out. In most cases, you will get some water draining from this connection.
Step 7: Remove the dishwasher.
The dishwasher is anchored to the underside of your countertop (or plywood underneath granite, quartz, or other stone countertops). Look for two screws that hold the dishwasher in place. Remove the screws and move the old dishwasher out. Your dishwasher probably has adjustable feet in front and wheels in back making it easy to move. You may need to work the dishwasher carefully out of its spot.
Installing the new dishwasher requires following these exact same steps in reverse.
That’s it! Installing a dishwasher is actually a very easy process, and all new dishwashers will come with instructions similar to what we’ve laid out here. If you’re comfortable with basic DIY projects and following instructions, you can definitely do this job without reservation.
This installation took us about 1 hour. For beginners, set aside 2.5 hours for the installation and you won’t feel rushed. If you need to replace or add a dishwasher valve, that could take some extra time.
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URL to article: http://www.oneprojectcloser.com/how-to-install-a-new-dishwasher-2/
URLs in this post:
 6-in-1 Screwdriver: http://www.oneprojectcloser.com/the-best-phillips-and-flat-head-combination-screwdriver/
 Drill/driver: http://www.oneprojectcloser.com/skil-18v-lithium-ion-hammer-drill-driver-review/
 Multimeter: http://www.oneprojectcloser.com/review-tek4-4v-professional-digital-multimeter/
 6.5″ Channellock pliers: http://www.oneprojectcloser.com/new-channellock-6-5-plier/
 dishwasher elbow: http://www.warnersstellian.com/products/11469
 sweat soldering: http://www.oneprojectcloser.com/how-to-sweat-solder-copper-water-pipes-for-a-watertight-seal/
 dual stop: http://www.brasscraft.com/products.aspx?id=204
 turn it off at the street: http://www.oneprojectcloser.com/main-cutoff-water-valve-street/
 replacing the main water valve: http://www.oneprojectcloser.com/install-or-replace-a-copper-pipe-main-water-valve/
 plumber’s tape: http://www.oneprojectcloser.com/pipe-leak-at-a-threaded-joint-use-plumbers-tape/
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