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Electrical Wire and Cable

How to Wire a New Dishwasher

Wiring Connections for a New Dishwasher: How do I connect the electric wires for my new dishwasher?

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Dishwasher Electrical Wiring
[ad#block] Electrical Question: How do I connect the electric wires for my new dishwasher?

This electrical wiring question came from Mike, in Concord, Massachusetts.

Dave’s Reply:
Thanks for your electrical wiring question Mike, here’s your electrical answer, enjoy your new dishwasher!

Wiring Connections for a New Dishwasher

electric wiring a dishwasher

Application: Electric Wiring for a Dishwasher.
Skill Level: Intermediate to Advanced – Best performed by a Certified Electrician or Electrical Contractor.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
Estimated Time: Depends on personal level experience and ability to work with tools.
Precaution: Identify the circuit, turn it OFF and Tag it with a Note before working with the wiring.
Important: Burnt or damaged wiring and circuit components should be replaced with new electrical materials of the same voltage and amperage rating.
Notice: Installing or Replacing a Dishwasher should be done according to local and national electrical codes and installing new or replacement electrical parts or equipment may require to have a permit and be inspected.

Making the Electric Wire Connections for a Dishwasher

Dishwasher Junction Box Wiring and Circuit Cable or Cord

The circuit cable or electric cord must be brought into the dishwasher junction box through the provided half inch opening which is first fitted with a connector which will protect and secure the wiring. All wiring connections must be made within the junction box of the dishwasher and then the junction box cover plate must be installed. Wiring connections are best made using twist on insulated wire connectors. ELECTRICAL TIP: Typically the Orange or Yellow size wire connectors work best.

Electrical Wiring Hook Up for a 120 Volt Dishwasher

Example of Alternative Grounding Methods for a Dishwasher

IMPORTANT NOTE: When correctly grounding the dishwasher, the circuit ground wire will be properly bonded to the metal frame which will then enable the dishwasher components to be properly grounded.

More about Wiring a Dishwasher

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Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handy Women, and Electricians
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

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FAQs Frequently Asked Questions and Comments

2 Responses to “How to Wire a New Dishwasher”
  1. kyle says:

    The electrician wired my dishwasher, which is on its own circuit and GFCI. The wires are black, white and red. Which is the ground wire?

  2. Dave Rongey says:

    Hi Kyle,
    Home electrical wiring includes a ground wire which is typically a green or bare copper wire. If the wiring is located inside a metal box then the ground wire should be attached to the box with a green grounding screw. If you cannot locate the ground wire you may want to contact your electrician and ask him where the circuit ground wire is.
    Be safe,