How to Replace a 120-Volt Electrical Wall Outlet

By: Julie Day
Receptacle pulled out from the electrical box.

Examine the wiring on the receptacle before disconnecting it.

Step 4: Inspect Receptacle Wiring

Take a look at the receptacle to understand how it’s wired. Some outlets simply have one hot (black) wire and one neutral (white) wire. The black wire should be attached to a brass or gold screw, and the white wire should be attached to a silver screw. There may also be a bare or green ground wire attached to a green grounding screw on the receptacle.

Other circuits are wired in daisy-chain fashion from one to the next, with one set of black and white wires leading into the receptacle, and another set leading out to the next outlet. Still others might be wired on separate circuits, with entirely separate wires feeding each of the two outlets – that’s why voltage testing is so important.

If you have multiple wires coming into your receptacle, use bits of masking tape to mark which wires are attached to which screws, because once you disconnect them it will be hard to remember what goes where! On complicated hookups, draw a diagram, or take a picture of the wiring before disconnecting it.

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5 Comments on “How to Replace a 120-Volt Electrical Wall Outlet”

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  • erica jones Says:
    July 18th, 2016 at 10:07 am

    my electrical outlet in the kitchen does not fit my oven i need to replace it to fit my oven cord which is a three prong what do i need to do



  • Lonnie Ayers Says:
    November 8th, 2015 at 10:34 am

    I am replacing some old lighting in my kitchin, the lights I will be putting back are lumens link able. What I would like to do is remove the switch that is there fore the old light and rewire it for a outlet can you help?
    Thanking you in advance,
    Lonnie Ayers



  • Deborah Fairchild Says:
    August 17th, 2014 at 10:21 am

    How do I figure out which circuit breaker turns off which outlets and then how do I double-check to be sure its off?



  • Bill Says:
    December 18th, 2011 at 4:31 pm

    Good safety tip! Always check a switch or outlet to be sure it’s off before working on it.



  • Santa Says:
    July 24th, 2011 at 12:28 pm

    I have two ceiling fans (bedroom & living room) which are controlled by wall touch switches. One or both will go during severe storms. I have questioned various Home Depot workers who had no idea what could be causing these occurrences. I don’t want to call an electrician to come over for something I could possibly do myself. I have installed dimmer switches, installed thermostats, toilet repairs, under the sink repairs, faucet repairs…..so I think I can tackle this one. I just need to know whether if I disconnect it at the wall switch, will it function manually directly from the fan?

    I thank you.


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