APC UPS CS 500 flashing OVERLOAD light and beeping continuously

Wekiva

Senior member
Feb 13, 2001
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Things always seem to go wrong with my computer when I'm away from home. My wife called me this morning and told me the computer had shut down, the Back-UPS CS 500 overload light was on and it was beeping. This system has been running w/out problem for a long time and I've not added any hardware to the UPS recently. I currently have my CPU, one monitor, the cable modem and a router plugged in so I don't think it's overloaded. The UPS has been working great and is about a year old with the original battery.

If it's not really overloaded what could have caused this alarm?

Thanks