20 Most Recent Powerware 9390 UPS System Questions & Answers


This error can only be cleared by the Eaton technician with their laptops. If this is a new unit it HAS to be factory started or your warranty will be void.

Powerware 9390... | Answered on Dec 11, 2019


9390 Requires a UVR type battery breaker. Unfortunately a configuration error will require a service visit from a technician. The proprietary service software will have to be used to reset this.

Powerware 9390... | Answered on Jun 04, 2015


This error indicates that the battery packs are no longer able to supply the expected run time or load capacity that the UPS needs. The batteries will need to be replaced.

Powerware 9390... | Answered on May 05, 2015


You will have to consult the user manual for the default password. Usually default passwords are admin/admin.

Powerware 9390... | Answered on May 05, 2015


Need to configure upon initial startup

Powerware 9390... | Answered on Jan 30, 2014


There is alot of possibilities on this on. Most likely it is in your input or output. You may have a 208V or a 480V input but your UPS may be programed for 240 or another voltage. I have the manual and all the knowledge you need. Email me at [email protected]

Powerware 9390... | Answered on Sep 20, 2011


It either means the ground wire in extension cord is not there or is open. It could also mean that the outlet wasn't wired with a ground back to the panel.

Powerware... | Answered on Jun 04, 2019

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