Question about Powerware 9120 UPS System
Alarm sounds, UPS is in Bypass mode, and noticed both fans were not on. After sticking a piece of paper into both fan slots to check, the top one started working. UPS is located in tight quarters and machine computer it feeds is running. This is why a person can't easily visually inspect the back without shutting machine down and disconnecting UPS. This problem occurred about 24 hours after battery replacement and I suspect may have helped the old batteries fail.
You're absolutely right, overtemp on batteries can greatly escalate the failure of batteries, particularly older or heavily loaded ones. The fans are a fairly easy replace, if we can assist in any way, please do not hesistate to contact us.
Posted on Jun 30, 2009
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Posted on Jan 02, 2017
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