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Posted: 2021-06-2909:37 AM
Back-UPS ES 550 No Power On Light
This was originally posted on APC forums on 8/14/2012
I just purchased this new unit, when I plug into the wall and hit the power button, I only get green light on the first indicator. There are 3 indicators. The second indicator is "Power On" and I get no light on that one. How do I get the "Power On" indicator to light up green? Am I missing something?