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APC SmartUps SU1000I NET After we hit the power (I

APC SmartUps SU1000I NET After we hit the power (I - test) button, during or after completing the self-test UPS drops the load immediately (or sometimes between 1-45 minutes, does not go on battery, instead all the 6 LEDs around the middle start flashing without any beep (not the graph LEDs). It still can go online on battery mode and at times even from the mains supply also - until the load is dropped.

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  • Adnaan Baig
    Adnaan Baig Oct 22, 2013

    Replacing elays, RY5 & RY3 made the fault less frequent

  • Adnaan Baig
    Adnaan Baig Oct 22, 2013

    It suddenly stops supplying the load when mains supply is present, works fine on inverter.

  • Adnaan Baig
    Adnaan Baig Oct 26, 2013

    1400VA capacity. Replacing RLY 5 & RLY 3 improved the problem by about 50% only . Re-soldering all the pins of all the relays solved the problem.


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The possibility of changing UPS code, so its capacity is smaller, the solution must first be returned to its original settings on PC via Hyper term,
or the relay damage, or overload

Posted on Oct 22, 2013

  • Dean Arhafidzia
    Dean Arhafidzia Oct 26, 2013

    check again replace the relay of the same type, be careful there are broken lines (two layer truehole) trying to use APC power chute detected what 1000VA capacity?

  • Adnaan Baig
    Adnaan Baig Oct 26, 2013

    1400VA capacity. Thanks for the help.


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SOURCE: After powering on, all non-graph LEDs keep blinking

That meens that UPS dont have battery power for minimum time (2min). Unplug some devices so UPS load need to drop below 25% and lets UPS recharge battery

Posted on Jun 08, 2008

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