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This was originally posted on APC forums on 11/5/2009Hi Our customer has Symmetra UPS, and indicates on the Display Panel E3 Alarm Message, the UPS did not go to battery when the mains failed. Please advise type of fault in the system . Innovator
This was originally posted on APC forums on 7/21/2012The UPS we just replaced with new batteries is now in normal operation but sometimes shows bypass which I believe is a false alarm. Also noticed charging voltage for 192 cells per bank is only 384V…View more
This was originally posted on APC forums on 7/19/2012We just replaced batteries for SILCON40KH UPS with EXTERNAL BATTERIES ( 2 x 32 Blocks of 12V/45AH). After, the starting up normally, the unit intermittently goes to Internal Bypass, please advise. …View more
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This was originally posted on APC forums on 11/9/2009Can you please advise what is the meaning of the alarm message E3 on Symmetra UPS. Morever, the UPS did not go to battery back up when the power failed, The battery banks are OK. Innovator
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