Are you tackling a new dishwasher installation and feeling puzzled about its electrical connection? Deciding whether to use a power cord or hardwire your appliance can make a significant difference in safety and efficiency. Get ready to transform your confusion into confidence with our step-by-step guide, complete with a how-to video just below!

Looking for the right part? Enter your appliance model number below to find the exact match and get your appliance running like new again!

Dishwasher power cord vs hardwiring

Installing a new dishwasher in your home? You may be wondering what type of power cord you need. Are dishwasher power cords universal, or are they model-specific? Should you hardwire your new appliance instead? Always check the installation guide for your specific model to see what the manufacturer’s recommendations are. This guide covers everything you need to know about dishwasher electrical hookups.

If you need any replacement parts for your appliance, you can enter your model number at AppliancePartsPros.com to order them. Most orders arrive in just two business days, and we have thousands of free guides to show you how to install your new parts.

The information in this article may not apply to your specific appliance model. We recommend consulting your manufacturer’s documentation or contact us with any questions.

Dishwasher electrical requirements

Modern dishwashers are high-powered appliances that require a dedicated electrical circuit. Most models run on 120 volts and draw 1500-1800 watts while operating. For safety and performance, dishwashers should be on a 20 amp grounded circuit with GFCI protection.

Using an extension cord is never recommended due to potential overheating hazards. The power cord or wiring should be sized appropriately for the dishwasher’s amperage rating.

Watch: How to install a dishwasher

Are dishwasher power cords universal?

Unlike a television or laptop, dishwasher power cords are not universal. Appliance power cords are carefully matched to the specific electric requirements of the dishwasher model.

Cords are designed to safely deliver the correct voltage and amperage. They also have water-resistant insulation to protect against leaks. Using the wrong power cord could lead to shock, fire, or equipment damage.

When purchasing a replacement cord, always consult the manufacturer and model information to make sure you get the proper cord for your dishwasher. Never try to use a generic or mismatched cord. You can take your model number to AppliancePartsPros.com to locate the correct one for your model.

Should you hardwire the dishwasher?

Some home improvement experts recommend hardwiring a dishwasher directly to the electrical system instead of using a plug-in cord. Hardwiring involves connecting the dishwasher wires directly to the terminal block.

Potential benefits of hardwiring:

• Eliminates cord visibility for a streamlined look
• Provides a more permanent connection
• Removes the tripping hazard of a bulky cord
• May conform better to building codes

Downsides of hardwiring:

• More complex installation
• Cannot unplug during service
• Requires shutting off circuit breaker to disconnect

If hardwiring, use 10 or 12-gauge NM cable with ground wire. While this is something a DIYer can do if you have any doubts about working with the home electrical system, contact an electrician or an installer. 

Using a plug-in power cord

Many homeowners prefer the simplicity of using a plug-in power cord. This method allows easy connecting and disconnecting of the dishwasher.

Follow these tips for a safe plug-in installation:

• Confirm the outlet is grounded and is on a dedicated 20 amp GFCI circuit.
• Directly insert the dishwasher plug into the wall outlet. Never use an extension cord.
• Check that the power cord is the correct rating and type for the dishwasher model.
• Inspect the plug prongs and cord for any damage before inserting.
• Position the cord to avoid pinching or heat damage from the dishwasher or walls.

Changing a dishwasher’s power cord

Over time, a dishwasher’s power cord can become damaged from heat, water exposure, or pinching. If the cord needs replacement, use only a new cord meeting the dishwasher’s specifications.

Follow the steps below to safely change out a dishwasher cord:

1. Unplug the appliance and turn off the power supply.
2. Remove the cover plate and detach the old cord wires.
3. Thread the new cord through strain relief and connect wires.
4. Confirm ground wire connects to the grounding screw or terminal.
5. Reattach the cover plate. Check for secure wire connections.
6. Plug in the dishwasher and verify proper operation before sliding into the cabinet.

Additional information

Thanks for reading! If you have any other appliance repair needs or projects, you can find more resources including our DIY blog at AppliancePartsPros.com. There, you can enter your model number to order the exact parts you need. Most orders arrive in two business days.

You can also reach our award-winning customer service team at 1-877-477-7278, chat with a pro on our website, and watch thousands of free video tutorials on our YouTube channel.

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