Don't Miss

Power Supply For A Pool Lights Repaired

By on April 26, 2021
how to fix power supply







My brother brought me this power supply for repair. It was a power supply for lights in his swimming pool. He has a villa for rent and in this villa he has a big swimming pool with lights built in. He also explained that an electrician was working in this villa that caused damage to this power supply.

inoled power supply repair

It is a cheap power supply but he could not find a replacement for it due to lock down

in our area so he asked me to take a look and see if it can be fixed.

how to fix power supply

The fuse was intact but the power light at the output side was not coming on. There was power reaching the main capacitor but beyond that point there was no voltage readings whatsoever.

how to repair power supply

As I scanned the area with my naked eye I could see a break in the trace next to this big diode in the secondary section of the power supply.

shorted schottky diode

It is a little bit out of focus but it is a high speed rectifier and it was shorted on one side of it. I fixed the broken trace and then replaced it with a different part number but again I forgot to take a photo of it (my son keeps reminding me that I need B12 and I always laugh when I hear his words.)

Anyway, the shorted part was replaced, added thermal past to its heat sink and then powered on the device with a current limiter attached.

how to fix a broken power supply

The Led light came on and the light bulb on the current limiter was dim which indications of a working power supply.

how to repair a switch mode power supply

Mission Accomplished.

This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.

P.S- Do you know of any your friends who would benefit from this content that you are reading now? If so, forward this website to your friends or you can invite your friends to subscribe to my newsletter for free in this Link.

Note: You can check his previous repair articles in the link below:




  1. Albert van Bemmelen

    April 26, 2021 at 7:52 pm

    Another happy customer helped in the best way possible! I only wonder what B12 is? A vitamin ?

    • Gilberto Galindo

      April 26, 2021 at 10:16 pm

      It was my conclusion too, using the context. Anyway, younger people always are true. Take care.

    • Waleed Rishmawi

      April 27, 2021 at 4:35 pm

      Albert: B12 is a vitamin that helps with

    • Edgar

      April 29, 2021 at 12:20 pm

      Thanks Waleed.

  2. Parasuraman S

    April 26, 2021 at 10:54 pm

    "my son keeps reminding me that I need B12", I had a good laugh at it! Well, we all tend to forget to cover even very important portion, as we are keen and focusing on the troubleshooting! Excellent result for your mission!

    • Waleed Rishmawi

      April 27, 2021 at 4:36 pm

      Parasuraman: yes laugh is the best medication. thanks man. have a blessed day

  3. jose armando sanchez valdez

    April 26, 2021 at 11:09 pm

    excelente info de reparacion de la fuente conmutada..
    excellent information on repair of the switched source.

  4. Waleed Rishmawi

    April 27, 2021 at 4:37 pm

    Jose: I am glad you liked it. have a blessed day

  5. Yogesh Panchal

    April 28, 2021 at 4:18 pm

    Good Job! Waleed
    Yes B-12 is necessary to keep process in process..............ha ha ha


Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.