Question about Powerware 9120 UPS System

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Can I replace the fan in a live powerware 9120?

The fan in my production powerware 9120 has died, resulting in an over temp alarm. While in this alarm state it apparently is not functioning as a UPS, as I discovered when we lost power last week. The problem is I can't shut this UPS down - it'll bring our whole corporate network down. I've found the directions to replace the fan, I'm wondering if it's possible and safe to do while the system is live.

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  • Justin Acklin Jul 11, 2013

    I want to add I did contact Eaton for an estimate to have a tech come and replace it, and their estimate is almost $2000! for a $10 fan...

  • Justin Acklin Jul 11, 2013

    I actually found a number of posts indicating any cheap 2-load 12VDC 80mm X 80mm X 25mm will replace it, with instructions how. No help telling me to replace the bearings without more detail on how. Can you even replace bearings on brushless DC motor?
    My question still stands: Is this safe to do while the UPS is turned on? It's in "OVER TEMP" warning already.

  • Justin Acklin Jul 12, 2013


    According to Eaton tech support, this is a part that I can replace myself easily, but the UPS does need to be powered down.

  • Vassilis Chamaidis Aug 15, 2013

    As you said any fan 80X80mm will do. Have in mind that this is live curcuit with high voltages.

  • Vassilis Chamaidis Aug 15, 2013

    Prepare the fan before installing it. Normally you buy the fan without the connector so a good idea is to add the connector before removing the ups cover. Another way is to use heat shrinking tube to join the wires comming from the board. Personally i prefer to desolder the cables from the failed fan and solder the directly to the new fan. As i said before its a live curcuit and you need to be carefull.

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Hey dude your problem is so simple..below are my solutions.
if you already secured the fans for the replacement then its easy for you to do it, try to totally shut down your UPS removing the input and battery supply. avoid replacing the fans with power, its to dangerous. it consist of almost 400VDC inside in it.
call me if you want +63923 3024 585

Posted on Jan 27, 2014

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Posted on Jan 02, 2017

  • 198 Answers

SOURCE: Powerware 9120. 1500i UPS

You can download the manual and other literature at
http://www.powerware.com/EMEA/UPS/9120_info.asp

The contacts for support in India are found at
http://www.powerware.com/India/Service_Support/IN_Office_Contact.asp

They offer a battery monitoring software package, at
http://www.powerware.com/India/Service_Support/IN_Battery_Services.asp

You can email support at http://www.powerware.com/pp/Check.asp?key=code1
Good luck

Posted on Feb 23, 2008

  • 4 Answers

SOURCE: replacement fans for powerware 9120

9120 fans are rare and uncommon, for alternate solution just replaced the bearing of the fan.

Posted on May 27, 2010

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You can email support at http://www.powerware.com/pp/Check.asp?key=code1
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