Question about Powerware 9120 UPS System

1 Answer

Doesn't start and shows "Failure..." on display

After taking the UPS to the nearest Technical Support aviable, they changed the batteries and returned the equipment with the new batteries uncharged. After charging the batteries as supposed (and widthout unplugging the UPS from the socket), I try to turn on the UPS but it doesn't provides power. Also, displays "Failure..." on the display. Any suggestions? Is there any start-up sequence that i should know about? Thanks a lot !!

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers
Re: Doesn't start and shows "Failure..." on display

Hi, a couple of things you can do but may I first suggest you bring it back to the Technical Support people who replaced the battery and voice your issue. The new battery might have to be replaced (don't be surprised) and you may have certain warranty claims that may be void if you try opening the UPS yourself. If for some reason you want to do it yourself, then you have to open the UPS and check the circuitry including the new battery. You need to be familiar with the use of a multitester (VOM), working with HOT circuits and general electronics. You have to start with any fuses, circuit breakers, relay, SCRs, transistors, etc. If you are not that comfortable doing so, guess were back to the first paragraph. Hope this be of some help. Good luck

Posted on Apr 26, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

I have Numeric 1000 Hp Digital Ups .now i have a problem With it .Always it is giving short beep sound, and displays shows "Warning 22".Battery back up is also not giving. During power failure instrument...

Replace the batteries in the UPS - that's your problem. Everything should work after that :-D

If you need UPS, Surge, or Power Related help don't hesitate to contact me!
Daniel • • Power & Systems Innovations • 800.260.2259 •

Aug 24, 2013 | QVS NetStar (UPS650A) UPS System

1 Answer

I have a GS-1500U geeksquad battery back up, when its plugged in, the power light blinks. when I push the display button, it shows the battery level as fine, but after 3 seconds, the UPS shuts off

Hi and welcome to fixya
the symptoms that you are telling are of battery ! the problem is with the battery change your battery or take to an expert then your problum will be surly solved

Dec 06, 2012 | UPS Battery Backup Systems

1 Answer

Ups 6 KVA power ware 9120 indicate the problem of (charger failure) ,please provide circiut diagrame of relevant UPS or help to point out the particulare section of circuit with component numbers in...

Here is the 9120 documentation page but Eaton generally does not publish circuit diagrams for smaller UPSs like this. Some people may be technical enough to take a UPS apart but most aren't and it can be very dangerous. I suggest you contact the Eaton hardware support forum.

Jul 15, 2011 | Powerware 9120 UPS System

1 Answer

I have a powerware 9120 (6kva) and about 1 week i replaced all 20 batteries after the UPS failed. but its displaying battery disconnected when i try to power it. i cant seem to figure the problem. i tried...

Did your UPS display "Battery disconnected" or did it display "Battery Failure"? If it was "Battery Failure", for some reason the Powerware 9120 will take almost 18 hours after plugging in to power after battery replacement to correct the Battery Failure indication. Charger has to charge up the batteries, followed by an automatic battery test by the UPS. If the indication was "Battery Disconnected", you will need to check the internal fuses to see if they are blown. If the UPS keeps blowing fuses, it will require a board repair.

Jun 12, 2011 | Powerware 9120 UPS System

1 Answer

Microtek dual ups battery

yeah, you need to replace the battery with the same kind of battery installed in it or you may consult with the technical support of microtek nearest you.

Sep 12, 2009 | UPS Battery Backup Systems

2 Answers

Batery faillure

Advanced Battery Management Technology Prevents Premature Failure and Significantly Extends Battery Service Life
Batteries are the most critical component in the reliability of any UPS, but they face three fundamental challenges: All Batteries Need Charging
But extended charging significantly shortens battery life. Most batteries are charged with a trickle-charging process (a constant voltage feeding a low current to the battery). This method dries the electrolyte and corrodes the plates, reducing potential life by up to 50%.
Batteries Take Time To Recharge
Users can’t wait. During prolonged power outages, the UPS batteries will discharge and not recharge until the power returns. When there is a subsequent power failure before the batteries recharge, the computer will not have full backup time. Overly rapid charging can cause premature battery failure, so the trick is to charge at the fastest rate that is safe for the battery.

All Batteries Will Eventually Fail
The question isn’t “Will it happen?” but “When will it happen?” Because UPS batteries are valve-regulated, sealed lead acid, there has previously been no practical way to provide the user with any meaningful advance notice that batteries need to be replaced. In the past, the only way to know when the batteries were dead was when the power failed and took your computer down with it. Until now, typical UPS batteries have required replacement every two to three years.
Our exclusive ABM technology solves these UPS battery problems. It significantly increases the life of UPS batteries (see Figure 1), provides the fastest safe recharge time, and provides reliable advanced notice when the batteries need replacement. By extending battery life and virtually eliminating this major cause of surprise load crashes, we are able to offer the industry’s longest and most inclusive warranties on all products that incorporate ABM. No other manufacturer can make this statement.
ABM technology is available on Powerware 5115, 5125, 9120, 9125, 9140, 9155, 9170+, 9355, and BladeUPS UPSs.

Jul 02, 2009 | Powerware 9120 UPS System

1 Answer

Insufficient Runtime Available on Agent

If the UPS display is indicating runtime at 6 mins, and software is saying insufficient, seems like a communications issue. I'd try downloading the latest communication software for the UPS and reseating the communications cable at both ends, making sure no bent pins, etc. could be causing a comm glitch.

Jun 25, 2009 | APC Smart-UPS 1500VA Shipboard...

2 Answers

Battery Failure


if the battery is bad you better to replace a new one!


Sep 23, 2008 | Powerware 9120 UPS System

1 Answer

9120 Battery Failure

sounds like inverter is unhappy(causing the input fuse to blow. maybe, just maybe, this Powerware 9120 has given up the ghost? The inverter can short for a variety of reasons. Try to take out the battery completely, and run it as just a power conditioner. If that works, then you have an unhappy inverter in there.

Feb 05, 2008 | Powerware 9120 UPS System

Not finding what you are looking for?
Powerware 9120 UPS System Logo

Related Topics:

118 people viewed this question

Ask a Question

Usually answered in minutes!

Top Powerware UPS Battery Backup Systems Experts


Level 3 Expert

56631 Answers

Jax Planet
Jax Planet

Level 2 Expert

921 Answers

Richard Roberts

Level 2 Expert

198 Answers

Are you a Powerware UPS Battery Backup System Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides