Question about APC Back-UPS Pro 1100 (BP1100) UPS System

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BP1100 Overloads with no appliances connected

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  • David Anderson Jan 04, 2013

    I have a 4-yr old BackUPS Pro BP1100 which recently indicated battery replacement needed. I ordered the two batteries and replaced them. Now when I power the unit on to charge the batteries, the Overload light comes on after about 10 seconds and the unit emits a loud constant beep. This is with NOTHING plugged into it (no appliances). I then put the old batteries back in and re-tested. Same thing! Overload/beep sound after about 10 seconds. Is there any fix to it? Thanks.

  • David Anderson Jan 04, 2013

    I should add that none of APC's tech support phone numbers seem to work. Both 1-800-555-2725 and 1-800-800-4272 ring and ring....

  • David Anderson Jan 06, 2013

    A tech at APC *finally* answered the phone and had me pull the battery and depress the power switch for 10 seconds to reset the unit. I put the battery back in and powered it up. The unit again made a loud buzz and overloaded. The tech said that the unit was at the end of it's life (made in 2005 according to the serial number). So off to find a new unit.... btw - They offer a "TradeUPS" program, but it's cheaper to just purchase a new one.



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Purchase of new unit will really solve the problem. anyway your UPS inverter is already faulty, and it need to change some of the component inside, basically the power mosfets and some of the faulty component around it. if you are not in a rush to use your UPS you can just send it for repair to any APC authorized service center near you.

Posted on Feb 20, 2013


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