20 Most Recent Powerware 9120 UPS System Questions & Answers

there is a 100uf/63v capacitor near the IRF630 fet. You need to replace this in order to fix this error. Along there is also a 2200uf/16v capacitor. It is a good idea to change the both at the same time.

Powerware 9120... | Answered on Dec 18, 2018


Please go to www.powerware.com for manual downloads on most if not all of the the Powerware range of UPS.

Alan Hood

Powerware 9120... | Answered on Mar 25, 2018

Contact Powerware and request the motherboard schematic diagram.

Powerware 9120... | Answered on Oct 09, 2017

Honestly, the cost of repair might exceed the cost of a new unit. We can likely get any parts needed to repair the unit, but might not be the most cost effective solution. Might want to price around for a replacement unit. If you need additional assitance, please contact us.


Powerware 9120... | Answered on Mar 11, 2017

The internal temperature is too high.

Powerware 9120... | Answered on Jun 29, 2016

Battery breaker open or blown DC Fuse

Powerware 9120... | Answered on Jul 29, 2015

why don't you check the DC bank capacitors, you may need to replace them

Powerware 9120... | Answered on Jun 18, 2015

Remove all load.
Turn off UPS.
Start UPS.
If fail remains, check the fuses and battery.

Powerware 9120... | Answered on Apr 04, 2015

You will have very little benefit from a schedule.
All UPS are structured similarly.
A rectifier, an inverter.
A battery charger, a bypass ...

Powerware 9120... | Answered on Jan 26, 2015

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

191 questions posted

Ask a Question

Usually answered in minutes!

Top Powerware Computers & Internet Experts

Gruber Power...
Gruber Power...

Level 2 Expert

176 Answers


Level 3 Expert

85239 Answers

Tom Chichester

Level 3 Expert

55379 Answers

Are you a Powerware Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Powerware Computers & Internet

  • Powerware Computers & Internet

Most Popular Question

tengo un ups y en la pantalla aparece

  • Computers & Internet