Question about APC Back-UPS RS Battery Backup (apw br1500) UPS System

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Beeping error br1500 apc beeping with overload error light

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  • t32bt32b Nov 01, 2008

    Turning on the 1500 triggers an overload and buzzer warning. Nothing is plugged in to it. What's up?

  • CherubicChar Nov 15, 2008

    the same thing is happening to me. i've removed the battery and reconnected it, allowed it to charge overnight, and it still beeps and indicates an "overload".

  • stlbill2 Jan 10, 2009

    Replaced battery, removed, recharged, and reconnected new battery, and the unit still beeps and indicates "replace battery" and sometimes "overload." How can I find out if there's something wrong with the unit after the battery's been replaced?

  • Anonymous Mar 07, 2009

    My APC BR1500 goes straight to Overload within seconds of being turned on. Unfortunately, according to APC's FAQ page, the Overload problem means that your unit is defective, and needs to be replaced.

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On the heatsink thats in front the fans theres six fet irfb23n20d mine had the outer two towards the fan short circuited.replaced them and all is well now.

Posted on Mar 14, 2009

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I am facing same problem, waiting for solution, searched all APC documents and found out nothing at all. although i guess it is he relay that is faulty

Posted on Dec 19, 2008

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Unit won't turn on


If the overload indicator is lit, the most likely cause is there are more devices plugged into the UPS than is can support. Try unplugging all devices but one and see if the unit functions normally.

You can then try to figure out how many is too many.

Dec 04, 2012 | APC Back-UPS RS BR1500-IN (BR1500-IN) UPS...

1 Answer

Having UPS Model No. BR 1500 in time of opening UPS shows over lode without giving any lode. Battery is new . can you tell me the solution.


Try to reduce your load. in a overload condition the UPS can not tell you what the load is if it has more then the 1500VA your UPS can not put out more then 1000 watts. Battery has nothing to do with the load.

Sep 09, 2011 | APC Back-UPS RS BR1500-IN (BR1500-IN) UPS...

1 Answer

Our ups apc back-ups 1500 is making beeb sound with red led blinking (overload option)


remove the load fom the ups and restart the ups. if the ups alarms again then the problem is in the inverter.

Apr 19, 2011 | APC Back-UPS RS Battery Backup (apw...

1 Answer

APC BR800 Overload light with beeps


Your main control board is defective, you need a new unit.

Dec 19, 2008 | APC (br800) UPS System

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