How To Convert 3 Wire to 4 Oven/Electric Range Electrical Outlet

How To Convert 3 Wire to 4 Oven/Electric Range Electrical Outlet

Do you know how to convert a 3 Wire Oven/Electric Range Electrical Outlet to 4 Wire? In this DIY electrical wiring tips video, we show you how to take an older 3-wire electrical 240 V stove outlet for your kitchen stove/oven/electric range and convert it to a modern National Electrical Code approved 4-wire outlet.

Tools & Parts used in this stove outlet 3 wire to four wire video:
Fluke 87-V Digital Multimeter:
Leviton 279 50 Amp, 125/250 Volt:
Coleman 4-Foot 50-Amp 4-Wire Range Power Cord:
Voltage Detector, Fluke VoltAlert:
Raised Square Range Outlet Cover 4-Inch:

All new construction homes are required by building codes to have 4 wire stove outlets. Every 220 volt outlet must be 4 wire. Every time I come across an older three wire oven outlet, I convert that old 3 wire oven outlet to 4 wire to the more modern National Electrical Code standards for oven wiring. So, if you are installing an oven and wondered how to connect stove wires in the stove outlet, you have come to the right place.

How to wire oven

Remember when you buy and install a new electronic oven, you need to check the existing stove outlet and see if it is a four wire outlet or a three wire outlet, and you have to buy the correct power cord for your new oven. Here is where we show you how to wire ovens for your newly installed 4 wire stove outlet. You will know exactly how to connect oven wiring in this DIY electrical tips video.

For more useful DIY home remodeling tips, tricks, and solutions to engineering disasters subscribe here:

WATCH: How to Convert 3 Wire Dryer Electrical Outlet to 4 Wire

WATCH: How to Move an Electrical Outlet/Light Switch Up A Wall, Patch Drywall

WATCH: How To Map Out And Label Your Electrical/Fuse Panel

For kitchen wiring, since Jan. 1, 1996, the National Electrical Code forbids 220 volt outlets, which are 3-wire Oven electrical outlets in all new construction, so you have to use the newer 4-wire outlets and remove the ground strap inside your new oven when you hook it up to four wire electrical outlets. Oven outlet wiring is fairly simple, there’s only 4 wires.

DIY Electrical, How to connect a stove

Our DIY electrical kitchen wiring tips here will help you wire your stove outlet box, and you’ll do it yourself, and we show you here how to modify kitchen wiring to convert three wire to four wire. You’ll learn exactly how to wire a stove outlet.

It is always a good idea to upgrade your older 3-wire outlet when you buy new appliances and are installing an oven. If you are remodeling your home and doing DIY electrical work, it is likely the building inspector will require you to upgrade your 3 wire outlet to bring it into compliance with the modern NEC codes as a four wire stove outlet anyway. You always want to convert that 3 wire oven connection to a 4 wire oven connection.

How to convert three prong outlet to 4 wire stove outlets.

Also, if your stove outlet box is metal, make sure to bond your electrical outlet box to the system earth ground by taking the ground wire and wrapping it around a green grounding screw attached to the outlet box. We often discover that previous electricians have failed to perform this required task.

Congratulations, now with our electrical tips you now how to convert 3 wire to 4 wire electrical outlets when installing an oven in your kitchen remodel. Now you are ready with your knowledge on how to wire ovens and electric ranges.

If you like our electrical tips here for converting 3 wire to 4 wire, please click on the thumbs up icon to show us you liked it, and don’t forget to subscribe and click the bell icon after you subscribe, which alerts you to any other future videos when we upload them so you don’t miss another DIY video. Any chance you get to help someone convert from 3 wire to four wire you should help them.

We hope this DIY electrical wiring video explained all our questions about Oven plugs, and oven plug wiring to the oven outlet.

Categories: Kitchen Appliance

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  1. jeffostroff
    jeffostroff 13 November, 2021, 04:50

    Tools & Parts used in this stove outlet 3 wire to four wire video:

    Leviton 279 50 Amp, 125/250 Volt:

    Coleman 4-Foot 50-Amp 4-Wire Range Power Cord:
    Fluke 87-V Digital Multimeter:
    Voltage Detector, Fluke VoltAlert:

    Raised Square Range Outlet Cover 4-Inch:

    Reply this comment
  2. TheShospitali
    TheShospitali 13 November, 2021, 04:50

    In other words for dryers & ranges the wiring code now wants you to add a neutral if I'm not mistaken.

    Reply this comment
  3. Oscar Stern
    Oscar Stern 13 November, 2021, 04:50

    Huge upgrade, just like the Dryer:

    Reply this comment
  4. Lyle Goodsell
    Lyle Goodsell 13 November, 2021, 04:50

    I’m always glad to check my knowledge before doing my electrical. I was not up on the two ground wires I’m glad I checked for I knew the ground wires, but I never knew the stove needed the jumped ground on the stove removed! Thanks.

    Reply this comment
  5. tpcoachfix
    tpcoachfix 13 November, 2021, 04:50

    Can you leave the existing 3 conductor cable and just run an additional separate ground wire?

    Reply this comment
  6. Bassil bayazed
    Bassil bayazed 13 November, 2021, 04:50

    Hi Jeff, Love your Show, I just realized that I have the old 2 wire system like this house. there is no way to go back. My Oevn is new and has a red wire, what should I do with red wire

    Reply this comment
  7. Interstices Interstices
    Interstices Interstices 13 November, 2021, 04:50

    Petty good with connection to both stove and wall outlet.

    Reply this comment
  8. donmago
    donmago 13 November, 2021, 04:50

    Jeff…Great instruction with a continuous feed of very helpful "electrical best practices" nuances. Sound is excellent as are the just-right video shots. Safety highlights are well done and on the safe side. I have recently successfully installed a 4-wire receptacle for Tesla charging and as well, a whole house surge protector. This video rounds out my electrical needs (to install a newer stove). Thanks for the confidence-building instruction. Keep up the great work!

    Reply this comment
  9. TF 2112
    TF 2112 13 November, 2021, 04:50

    You are wiring a three prong receptacle to a four wire receptacle. Three wires implies 10/2 with a ground.

    Reply this comment
  10. mundl kalli
    mundl kalli 13 November, 2021, 04:50


    Reply this comment
  11. Robert Jackson
    Robert Jackson 13 November, 2021, 04:50

    They are creating a redundant ground in the breaker box for added safety. Is this correct? The ground and the neutral(white) are connected together in the breaker box.
    Great video, appreciate your expertise.

    Reply this comment
  12. George Long
    George Long 13 November, 2021, 04:50

    Great video. Very clear instructions. Thanks.

    Reply this comment
  13. Thelma Mccall
    Thelma Mccall 13 November, 2021, 04:50

    I learned a lot, although I still wouldn't do this myself, I would rather have someone more knowledgeable to do the work for me.

    Reply this comment
  14. Michael Joseph
    Michael Joseph 13 November, 2021, 04:50

    Great job with the video, very thorough, and safe. Thanks.

    Reply this comment
  15. clearlybrowsing
    clearlybrowsing 13 November, 2021, 04:50
  16. m k
    m k 13 November, 2021, 04:50

    Thank you sir,appreciate your work and tutorial.

    Reply this comment
  17. Joe's Rusty Shutter
    Joe's Rusty Shutter 13 November, 2021, 04:50

    Jeff, the wires are short by code. An electrician told me the NEC code states a max of 2 inches for ranges because the wire does not bend in the box like 14 or even 12 guage. According to that, you should encounter short wires in every box. Just saying.

    Reply this comment
  18. Shah Sawar
    Shah Sawar 13 November, 2021, 04:50
  19. Shah Sawar
    Shah Sawar 13 November, 2021, 04:50

    This is exactly what I was looking for

    Reply this comment
  20. david burns
    david burns 13 November, 2021, 04:50

    jeff – i have the opposite problem – the older range came with a 3 prong plug in but the wall outlet is the proper 4 prong – can i use the old one or do i have to buy a new wire?

    Reply this comment
  21. Steve Greenfield
    Steve Greenfield 13 November, 2021, 04:50

    I must have missed it – where did you get the ground from? Was it already in the box, but not connected? I have a 3 wire 240V dryer outlet 30A, that only has two hots and neutral. I'd like to install a 4 wire with ground. I'd love t o do it without having to run a new 4 wire wiring from the breaker box, as it is on an outside wall and very difficult to get the wire changed out.
    There is a 120V grounded outlet about 3 feet away on the wall. Is it up to code to just run a ground wire over to that outlet to get a ground for the 240V outlet?
    Failing that, is it code to add just a ground wire going back to the breaker box?

    Reply this comment
  22. [blocked] edited
    [blocked] edited 13 November, 2021, 04:50

    Knock off the name-calling. Very unprofessional.

    Reply this comment
  23. David Lang
    David Lang 13 November, 2021, 04:50

    Very clear instructions. Thanks.

    Reply this comment
  24. tmm4800
    tmm4800 13 November, 2021, 04:50

    Your descriptions of the electrical components are incorrect. The jumper between the neutral and chassis ground is not a short it is a bonding jumper. The item you describe as a bezel is in fact a plaster ring. The box and two gang plaster ring that was originally installed is correct for flush mounting of the receptacle, what was missing was the correct two gang wall plate all completely code compliant. The cover you used is for a surface mount box like the type you would find on a unfinished basement wall. You did do your electrical connections correctly.
    Bad mouthing the original installation was totally incorrect. The original installation was code compliant if it had the two gang plate on it before you took it apart.

    Reply this comment
  25. Stephanie Miller
    Stephanie Miller 13 November, 2021, 04:50

    Jeff in a perfect world it would have four wires but the world isn't perfect. inside the appliance there is a bonding strap for the neutral and equipment ground in case you don't have the 4th wire. That is perfectly legal and much easier than running a new conductor to who knows where and much cheaper for the customer. it might be worth mentioning to those who can not easily install a dedicated equipment ground.


    Reply this comment
  26. HagbardCeline42
    HagbardCeline42 13 November, 2021, 04:50

    What if the wire coming out of the wall doesn't have a white wire? There's just Red, Black, and a bare wire (ground?).

    Reply this comment
  27. Bhoemi Tenzin
    Bhoemi Tenzin 13 November, 2021, 04:50

    There is exception if u can use ur fmc and metal box as equipment grounding conductor. If u go to article 250.118 (5) there is exception fmc should not be longer than 6 feet and condicut size not be greater than 1^1/4 .

    Reply this comment
  28. Gee Pee
    Gee Pee 13 November, 2021, 04:50

    Hey Jeff, 3rd video I’m looking at of yours! Ok. My old stove was actually hot wired, it had no plug in outlet. My electrician changed it for me but put in a 110 outlet🤔 he’s returning to correct it. I’ve purchased a new range. Are you telling me I have to use a 4 prong plug or can I go with a 3 prong? What determines it? Must get to Home Depot to purchase it.

    Reply this comment
  29. Kevin Coop
    Kevin Coop 13 November, 2021, 04:50

    Jeff, I question the plate you installed at the end. Yes the original 2 gang plate was wrong, but so is a surface mount plate. What is supposed to be used is a 1 gang mud ring and a surface cover plate.

    Reply this comment
  30. Ed Somers
    Ed Somers 13 November, 2021, 04:50

    Yea good electrical knowledge. Backbox a mess lol. I know you don't see it but really bad job.

    Reply this comment
  31. XS1100
    XS1100 13 November, 2021, 04:50

    It is not flat head it is called a slotted screwdriver.

    Reply this comment
  32. Matthew Crary
    Matthew Crary 13 November, 2021, 04:50

    Many thanks! Your instruction was methodical and clear and attention to safety saved me from getting shocked!

    Reply this comment
  33. Bite My Bait
    Bite My Bait 13 November, 2021, 04:50

    I'm not sure if I understand this correctly, I have the 3 pronged wall socket (house was built in 81) for my range, I have a newer range which has the neutral included. Can I just short the ground and range together? Another problem I have came by is my range seems to not be heating stove top coils to potential, food is cooking slow etc, is this due to me wiring it with my old 3 prong power cord from the previous range? Hope you reply and help me out, thanks.

    Reply this comment
  34. Al Sautner
    Al Sautner 13 November, 2021, 04:50

    Very very good…! Thanks….!

    Reply this comment
  35. Independent2016
    Independent2016 13 November, 2021, 04:50

    This whole process would've been much much harder if there was no ground wire running to this old outlet. The old receptacle was NEMA 10-50, which is kind of dangerous because it lacks ground and uses neutral as ground. So, when most of 10-50s are pulled out in most homes, you won't find a ground wire conveniently located nearby. This video is essentially on how to wire a NEMA 14-50 receptacle, not how to replace 10-50 with 14-50.

    Reply this comment
  36. Magic .Mark
    Magic .Mark 13 November, 2021, 04:50

    The plastic oven range box I bought does not seem to allow it to be mounted on the side. If that is the case,should the ground of the outlet be facing UP or down? Which is more likely to work best?

    Reply this comment
  37. Tito Torres
    Tito Torres 13 November, 2021, 04:50


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  38. Bruce Burnett
    Bruce Burnett 13 November, 2021, 04:50

    OK, so I have a new drop in cook top with three wires hard wired to the unit. They are Red (power), Black (power) and Green (ground) there is NO white wire, so where does the green wire go?

    Reply this comment
  39. Matthew Goetz
    Matthew Goetz 13 November, 2021, 04:50

    I signed on to YouTube for the very first time in years just to let you know how much I appreciated this video with your insights and the "don't be that person" admonition. Thank you.

    Reply this comment
  40. David Thompson
    David Thompson 13 November, 2021, 04:50

    EXTREMELY HELPFUL VIDEO. Thank you. Jeff I am in process of doing this project. Found out that original range wiring is aluminum so will be running a new line to the 50amp breaker. Ive been told that 8ga wire is required for this application. A prior person told me 10ga would suffice. My thought is 8/3.w grnd. Run out from box breaker to outlet would be around 40'. What is your 'opinion'?

    Reply this comment
  41. Olga Matheo
    Olga Matheo 13 November, 2021, 04:50

    So great video thank you so much help me a lot God bless you

    Reply this comment
  42. Reality isnt A choice
    Reality isnt A choice 13 November, 2021, 04:50

    Is the ground other than the white sometimes green

    Reply this comment
  43. plutobabe
    plutobabe 13 November, 2021, 04:50

    Most inspectors are worthless! Thank you for you this video, very helpful!

    Reply this comment
  44. drunkndonky
    drunkndonky 13 November, 2021, 04:50

    Thank you for an excellent video. when stepping up the breaker from 40 to a 50 amp would you upgrade the wire from 8 gauge to a 6? Total wire length is about 60 feet… Thanks

    Reply this comment
  45. jack dolphy
    jack dolphy 13 November, 2021, 04:50

    I have to guess that the original electrician left fairly short #6s reaching out from the box to make it much easier to fold the wires into the box behind the outlet. For sure it's always best to leave some extra, I don't know what the nec is on this. But for sure folding three #6s and a ground is not a feat for us mortals.

    Reply this comment
  46. Travis Gibson
    Travis Gibson 13 November, 2021, 04:50

    I believe I followed all the instructions for that procedure correctly. When I finish the job turn on the breaker and turn the range on the display and everything all the indicator lights clock and all come on and work correctly, however, none of the elements in the oven or on the surface will get hot. Any insight on the situation?

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