Installing a New Dishwasher – Step by Step Instructions

If you plan to purchase a new dishwasher from your local appliance store, the first question that will come to your mind is how to install a new dishwasher. If you intend to install it yourself, be warned that several processes involve some fairly significant stakes. Such as your time spent connecting water supply lines, drains, and your kitchen floor, not to mention your ability to use your new dishwasher immediately after purchase. 

While it is possible to install a dishwasher on your own, keep in mind that today’s modern dishwashers frequently include more electronic components, such as water and balancing sensors, than the machine you are currently replacing. We’ve highlighted the general steps to take to install your new kitchen workhorse below successfully. Continue reading, and we hope you will have enough information to make an informed decision about your installer.

Instructions for Installing a Dishwasher

Step 1: Preparation

Check to see that the new dishwasher will fit into the available area. Standard dishwashers require a minimum opening of 24 inches. To place supply lines, electrical wiring, and a drain pipe in the cabinet, drill holes into it. These will already be here if you replace the dishwasher and do not install it for the first time. 

Before taking the dishwasher home, make sure it has all the appropriate hardware. When removing an old dishwasher, make sure to close any shut-off valves and switch off the circuit breaker before disconnecting.

Dishwasher 1

Step 2: Connecting the Drainpipe

Connect the drain pipe to the inlet of the trash compactor and secure it with a clamp to prevent it from leaking.

The drainpipe beneath the sink may need to be replaced with a dishwasher branch tailpiece installed above the trap under the sink.

Step 3: Connecting Supply Lines

Close the water supply and install a dual outlet closed valve to link the dishwasher supply line to the warm water pipe beneath the kitchen sink. There are two outlets: one delivers hot water for the sink faucet, while the other connects to the dishwasher’s water supply.

The supply line should be connected using a right-angle elbow, with one end connected to the shutoff valve and the other end connected to the water inlet on the underside of the dishwasher.

Male threads should be taped with PTFE or plumber’s tape to prevent leaks from occurring. Hand-tightening supply lines must be followed by a quarter turn with a wrench to ensure proper operation.

Step 4: Connect the Electrical Power Source

Connect the cable to the correct wires in the dishwasher’s electrical box by running it through the back of the box. Attach the ground wire to the green screw on the back of the box and replace the cover.

Dishwasher 2

Step 5: Conduct a final examination

Turn on the water and inspect for leaks. Start the dishwasher and let it run through a full test cycle before turning it off.

If everything is in working order, you can slip the appliance into its storage cabinet. Make sure you don’t snag any pipes on the way in!

Step 6: Complete the cleanup and finalize the project

Any trim should be replaced. Remove all packaging from the floor and sweep it up.

Wrap up

Installing a dishwasher is not something that everyone can do. If you cannot do it by yourself, you can take help from some professional agencies in Texas like C&J Appliance Installations. 

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