This was originally posted on APC forums on 1/14/2012
Lately, I've noticed that my NS-1250 briefly cycles from Green to Yellow (beeps 4 times) and back to Green a few times a day. It doesn't affect the operation of my system - just cycles. Anything I should be concerned about?
Thanks for your help.
This reply was originally posted by Bernard on APC forums on 1/17/2012
Here are some of the reasons for a beeping UPS. The unit you have probably detected interference in the supplied input power and switched to on-battery operation momentarily.
This was originally posted on APC forums on 1/17/2012
Thanks for the information - that makes sense. Hey, at least I know it's doing its job.
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