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Home » Spaces » Racks, Rack Accessories, & Cooling » discussion » General » AP4421 Source B not available

AP4421 Source B not available

Discussion in Racks, Rack Accessories, & Cooling started by Gregor , 1/16/2018 1:06 PM
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  • Grex
    Novice Novice
    Gregor 1/16/2018 1:06 PM


    after the overvoltage protection has been triggered, the Source B does not come up anymore. If I put the cable on source B, there is a "click" noise, and I checked after switchting the protection to "on" the voltage with measurement, it is 230V.

    I aloso tried to use the same circuit, bot the Source B seems to be dead... And maybe it was fault that the overvoltage protection has been triggered.

    Can I something try, before replace the whole unit? (maybe there is a broken fuse in it?)


  • B-DoubleE
    =S= Representative
    Matt 1/17/2018 5:18 PM (in response to Gregor)

    Hi Gregor,

    Was there a surge or power event that happened on the input side of Source B? Could you share the log files from the ATS? Instructions on where to download can be found here: http://www.apc.com/us/en/faqs/FA156131/

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