Reverse Polarity in Electrical Outlets – What, Why and How

Reverse Polarity in Electrical Outlets – What, Why and How

Please SUBSCRIBE to my channel.

This video explains reverse polarity in electrical outlets and more. It describes, what reverse polarity is, why it’s a problem, and how to fix it. It also give a good background about how electrical systems are designed and installed.

If you’d like to learn about more electrical systems, and home systems in general, please visit my website at:

Categories: Kitchen Appliance

About Author


  1. Kimberly Taylor
    Kimberly Taylor 29 April, 2022, 07:48

    I guess I’d better remove my pizza from the toaster. 😔

    Reply this comment
  2. Yordan Nedelchev
    Yordan Nedelchev 29 April, 2022, 07:48

    I don't know if this applies for the EU. We do have a common rule of thumb where the hot should be, but loads could be connected eather way. Sooo…. idk

    Reply this comment
  3. allen burgess
    allen burgess 29 April, 2022, 07:48

    Excellent and useful content. The delivery was fine. Thanks

    Reply this comment
  4. Runningdeer 2
    Runningdeer 2 29 April, 2022, 07:48

    Great explanation. Thank you.

    Reply this comment
  5. Ashley Law
    Ashley Law 29 April, 2022, 07:48

    Logical system. Clear explanation. Thank you.

    Reply this comment
  6. AMIR
    AMIR 29 April, 2022, 07:48


    Reply this comment
  7. R Peace
    R Peace 29 April, 2022, 07:48

    Toaster schematic was an excellent example….great job.

    Reply this comment
  8. Tommy Daly
    Tommy Daly 29 April, 2022, 07:48

    How do you test the GFCI wires to verify you shut off the correct breaker so I don't have to flip the main off? I own both a multimeter and a car test light (for fuses)

    Reply this comment
  9. Tommy Daly
    Tommy Daly 29 April, 2022, 07:48

    I once accidentally touched my alternator when my car was running, tossed me back 10 feet like a rag doll, I've never worked with anything electric when powered on since

    Reply this comment
  10. Tommy Daly
    Tommy Daly 29 April, 2022, 07:48

    and don't put a knife inside the toaster to clear stuck bread !!!

    Reply this comment
  11. Tommy Daly
    Tommy Daly 29 April, 2022, 07:48

    I just changed a GFCI 5 wire, a ground, 2 lines and 2 loads and my "8-ball" reads hot neutral reversed, . This outlet runs a garage- located refrigerator and 2 2nd floor bathroom outlets. Are my line wires reversed or my load wires to get a "hot neutral reversed" reading? I know for certain my lines are up top and and loads are on the bottom, I just didnt realize the left and right could be reversed. Can I run into any problems if it takes me a day or two to address this? Thanks much

    Reply this comment
  12. Carl Hezel
    Carl Hezel 29 April, 2022, 07:48

    There are brass terminals for hot silver terminals for neutral and a green terminal for the ground wire. If installing a GFCI outlet or receptacle do not get the line and load mixed up and if there are multiple GFCI outlets on a circuit then do not use the load

    Reply this comment
  13. Tyrone Lyles
    Tyrone Lyles 29 April, 2022, 07:48
  14. J C
    J C 29 April, 2022, 07:48

    Great explanation but 1.25x speed and here you go.

    Reply this comment
  15. Satochi Nakamoto
    Satochi Nakamoto 29 April, 2022, 07:48

    Great explanation. The speed of delivery is to slow. Can you redo the video a little less mono tone.

    Reply this comment
  16. Gregory Womack
    Gregory Womack 29 April, 2022, 07:48

    Talking way too slow

    Reply this comment
  17. Chia Chinguan
    Chia Chinguan 29 April, 2022, 07:48

    Thank you so much. Very easy to understand.

    Reply this comment
  18. Charles
    Charles 29 April, 2022, 07:48

    Polarity is a function of a Direct Current Circuit – think battery power.
    Alternating Current (A/C) – in the US – consists of two 'HOT' wires (RED & Black) and a neutral (White) wire and a (Bare Copper) Ground Wire entering your Electrical panel. The ground is actually connected to the ground your house/home sits on (either by a grounding connection to buried metal water pipes or to a ground rod buried six feet or so into the ground.

    Hot and Ground are appropriate terms when discussing alternating current – rather than POLARITY (the relative orientation of poles; the direction of a magnetic or electric field) which is a term that has meaning when discussing Direct Current (think battery powered) circuits.

    Reply this comment
  19. shubham pattar
    shubham pattar 29 April, 2022, 07:48

    Thank u for ur kind information

    Reply this comment
  20. marvin slade
    marvin slade 29 April, 2022, 07:48

    Great job thank you

    Reply this comment
  21. José Asele Ikamba
    José Asele Ikamba 29 April, 2022, 07:48
  22. Loveleen Asalia
    Loveleen Asalia 29 April, 2022, 07:48

    Thanks a lot Mark!!

    Reply this comment
  23. Syahril Baharuddin Sellang
    Syahril Baharuddin Sellang 29 April, 2022, 07:48

    What about the round outlet how can u tell which is hot and neutral

    Reply this comment
  24. Hassan Bazzi
    Hassan Bazzi 29 April, 2022, 07:48

    Thank you so much for taking the time to clarify the information that I was looking for

    Reply this comment
  25. K A
    K A 29 April, 2022, 07:48

    This was a great video amongst thousands. Much clarity than ever. First time I got the inside real story of polarity reversal. In DIY, I did install one outlet and I have to check its polarity ASAP. Thanks for this video.

    Reply this comment
  26. Jeff Winik
    Jeff Winik 29 April, 2022, 07:48

    This was great, thank you! I hired and electrician to do my fix but the first thing he asked was to suggest testing with the 'cube'. What a cheap great investment, less than $5. After finding reverse polarity in 3 adjacent duplex receptacles, I was able to further talk with my electrician and get a head start on troubleshooting.

    Reply this comment
  27. Joel Hill
    Joel Hill 29 April, 2022, 07:48

    What. You can't cook pizza in a toaster? Learnt something new!

    Reply this comment
  28. Nuke Nin
    Nuke Nin 29 April, 2022, 07:48

    Same logic for ac?

    Reply this comment
  29. byron2521
    byron2521 29 April, 2022, 07:48

    Just tested every outlet in my home. My home is at least 30 years old. One outlet in the kitchen, one I plug in the coffee maker, tested reverse polarity. One of my outlets in the living room showed an open ground. You are right, the one in the kitchen seemed to work fine. I didn't know anything was wrong. Fixing it and the open ground this weekend.

    Reply this comment
  30. KEYO
    KEYO 29 April, 2022, 07:48

    Hi my four pin plug was damaged (clips snapped) on my car radiator fan motor my friend put a new plug on on the car rad loom which is 12 V car electrics- three settings on fan 100 250 450 – anyway he got the red and brown wire incorrect way into plug so I guess reverse polarity – it started smoking the motor and unplugged it after a few seconds – question is the cables where changed back to the right sockets and the fan now works perfectly – iy was a £400 fan my question is please the fan is working good but would he of damaged it as went very hot and smoked- the plugs were perfect and not burnt – thank you.

    Reply this comment

Write a Comment