Question about APC Back-UPS CS 500VA UPS System
The is a fairly large fuse that connect between MOST APC 24V system.
If there is TWO batteries inside your system them check the fuse in between the two batteries.
The is a safety loop back plus on larger APC unit. If it's missing it will not power up.
Posted on Jul 15, 2009
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Posted on Jan 02, 2017
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