Question about APC Smart-UPS 1000VA UPS System
It was working very well, now its continuously between ac power & back up. I can listen a sound of relay of the ups, it is continuously on ac power then backup difference of 1 second.
Try turning the unit off for a little while, unplug it from the source even. afer about 5 minutes plug it back in and try it again. You may have a bad battery, how old is the unit. UPS batteries should be changed out every 3 year's, max every 5 year's if you want good reliability. At 5 years you are taking a chance.
Posted on Jan 25, 2007
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when i put on the ups it indicates ups regulating high AC power
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