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Hair Stretching Device Restored

By on January 13, 2024
Hair Stretching Device Restored

hair straightener repair

This hair stretching device was brought with complaints of deadness and truly when I plugged it in a/c socket and press NO button, there was no life in it. This device is use in salon for women hair.

Opened the device and on visual observation, there was no physical damage, so I did test all components, they got 100% pass marks.

fixing hair straightener

So I decided to use my analogue meter to test the four red LEDs on board, all lit brightly, except the bottom one which lit dimly and at the same time the meter was bleeping and others did not bleep.


So I suspected the LED maybe its partially shorted,

so I  desoldered it out for a replacement, the pins (anode and cathode) of the LED are not rusted.

bad LED

After replacement and assembled everything together and powered on…..Wow device came alive again and the two elements got heated, and having attain its max temperature, it switched off automatically.

This is the finished repaired work.


imoudu onwuwah

This article was prepared for you by Imoudu Onwumah from Nigeria. He is 62 years old and has just 3 years experience in electronics repairs. I started career in hotel industry as a chef, but then I was doing repairs only in electrical repairs as a hobbyist. In 2018, I decided to learn about electronics which through Jestine’s electronics e-books and holding my hand, am an electronics techie today.

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Note: You can read his previous article on Domestic A/C Stabilizer Repaired



  1. Tayo

    January 13, 2024 at 10:09 am

    Good shot Imoudu! I would never have thought to check the LEDs to be honest. I guess when all the usual suspects have been cleared you'll look everywhere else.

  2. Parasuraman S

    January 13, 2024 at 11:25 am

    Though the problem looked simple after rectification, suspecting the component that could be the problem requires expertise and experience. Many thanks for sharing!

  3. Waleed Rishmawi

    January 13, 2024 at 2:27 pm

    yes the LED lights would do such issues. thanks for sharing and have a blessed day

  4. Yogesh Panchal

    January 13, 2024 at 9:18 pm

    Good Fix!Imoudu
    Do not know why manufacturers using Metal instead of the copper in Electronics components 50 % problems are because of the rust.

  5. Albert van Bemmelen

    January 13, 2024 at 10:06 pm

    I had a similar unexpected led problem in a recent HDMi selector repair. Good job Imoudu!

  6. Imoudu.O

    January 14, 2024 at 3:08 am

    Thanks my friend,I got to know this through this splendid blog.

  7. Imoudu.O

    January 14, 2024 at 3:13 am

    Thanks friend.leds play vital role in any circuit they are found.

  8. Imoudu.O

    January 14, 2024 at 3:15 am

    Thanks for your comments sir

  9. Babu MS

    January 15, 2024 at 1:00 am

    Good job. Identification of the fault is excelent. Thank you very much for sharing.


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