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Old 11-09-2012, 08:50 AM
rschoen rschoen is offline
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While possible you have a hardware problem, normally this event indicates out of spec commercial input AC power. You should first have the AC power checked. The UPS continuously compensates for (effetively smooths out) slight deviations in commercial input power but can only do so much before it either has to shut down or either goes into or must be manually put into battery backup mode.
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