TS4-A-O makes hissing noise intermittedly

Benjamin Biddle

• 25. Dezember 2022 17:44

After not being able to find my optimizer in the app along with the other optimizers, I noticed that about every 5 seconds or so the optimizer makes a hissing noise. Is this normal behavior?

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  Josine Pentin Community Moderator

  • 27. Dezember 2022 05:23

  Hello, Benjamin,

  Hissing sounds are not normal behavior. Tigo MLPEs should not be making any audible noises, clicking, or buzzing.

  I have created a ticket with our Technical Support team. They will be reaching out to you soon to work on the resolution.

  Thank you for contributing to our community.

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  Martin Jančík

  • 22. März 2023 12:44

  Hello,

  we have the same problem with a few optimizers. We observed that the optimizer whistles when the panel is shaded. During the shading optimizer starts shivering and stop with loud sound.

  Did you found any solution?

  Thanks for your answear.

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  Benjamin Biddle

  • 22. März 2023 13:02

  No, I haven't found a solution yet. I hope

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  Curtis Community Moderator Tigo Employee

  • 3. April 2023 17:17

  Hello Martin Jančík, 

  As per Josine Pentin's response, the Tigo MLPEs (TS4s) should not be making an audible sound. 

  For this reason, I have opened up a Support Ticket. An agent will be reaching out to you soon to assist in diagnosing the issue. 

  In the meantime, we greatly appreciate your patience with this process. 

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