Powermate UPS bad electrolytics?

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  • jeepster
    New Member
    • Nov 2010
    • 3
    #1

    Powermate UPS bad electrolytics?

    I have a Powermate 9120 UPS. After replacing the batteries, it came up
    with "DC bus fault"
    My first guess was that the batteries were not connected properly,
    or maybe a relay had burnt out.
    Then I found in a Finnish forum that this fault was cured by replacing
    two capacitors. The poster further claimed that this was a frequent
    failure in these models.
    Has anybody fixed this brand of UPS and found bad caps are the culprit?
    Tags: None
    • japlytic
      Badcaps Legend
      • Oct 2005
      • 2086
      • Australia
      #2
      Re: Powermate UPS bad electrolytics?

      Welcome, jeepster!

      Do you mean Powerware?
      Some pictures of the boards would be helpful.
      My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.

        Comment

        • lti
          Badcaps Legend
          • May 2011
          • 2545
          • United States
          #3
          Re: Powermate UPS bad electrolytics?

          It looks like bad caps could be the problem, but there might also be something else wrong with it.

          https://www.badcaps.net/forum/showthread.php?t=13768

            Comment

            • cheapie
              null
              • Jul 2010
              • 849
              • USA
              #4
              Re: Powermate UPS bad electrolytics?

              Originally posted by jeepster
              Has anybody fixed this brand of UPS and found bad caps are the culprit?
              Yes.

                Comment

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