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Maytronics Power Supply not work. Help please.

Discussion in 'Power Electronics' started by martrader17, Aug 19, 2021.

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  1. martrader17


    Aug 19, 2021
    Hi all. My name is Mario and this is the first time. I am not a technician but I am persistent and willing to learn. I have a pool robot that three days ago a lightning strike occurred and the power supply stopped working. It only turns on the lights of the power button but it does not work. I will leave you photos as well as the power supply model. I do not have the SMPS model because as I am not a technician there are many numbers on the card but I cannot identify it. I would like if you can help me identify the problem and repair it, I would appreciate it very much. I have an electricity meter and I know how to use it. Thanks in advance for your help.

    Attached Files:

  2. dave9


    Mar 5, 2017
    Can you determine how it powers on, perhaps it grounds the CTRL pin on the header pictured?

    One thing I would do is attempt to power it on (keeping in mind safety since you are then working with live mains voltage and even higher) and measure for whether there is both the 29V and/or 5V rails providing output, though my first guess would be that the transistor next to the two largest green capacitors is fried and test that.
  3. martrader17


    Aug 19, 2021
    Thanks for your reply. Check that the power cord is okay. This right. Check if 29V came out and it does not have it, it is 0 I don't think it's the ignition because when I turn it on the dash lights up and the other side is 120 V.
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