APC Back-UPS CS 350 Blinking Overload Light and Blinking Online Light

Anonymous user · ‎2021-06-29

I downloaded a manual but i can't find a reference to this error. Thanks for any help.
Also audible alarm.

Message was edited by: APCQB

Erasmus_apc · ‎2021-06-29

That is not a fault that I have listed for the Back-UPS CS model you have...could you try the following procedure to "reset" the unit?

+1: Disconnect any attached load.+

+2: Unplug the UPS from the wall socket.+

+3: Disconnect the UPS' internal battery.+

+4: Push and hold the "On" button on the UPS for 5 seconds+

+5: Reconnect internal battery.+

+6: Plug UPS in to known good power source.+

+7: Turn UPS on.+

See Answer In Context

BillP · ‎2021-06-29

hi,

can you clarify - are these flashing alternately or simultaneously?

Anonymous user · ‎2021-06-29

Thank you for the quick responses. The lights blink with each other at the same time, and the alarm is constant.

Anonymous user · ‎2021-06-29

I downloaded a manual but i can't find a reference to this error. Thanks for any help.
Also audible alarm.

Message was edited by: APCQB

Erasmus_apc · ‎2021-06-29

That is not a fault that I have listed for the Back-UPS CS model you have...could you try the following procedure to "reset" the unit?

+1: Disconnect any attached load.+

+2: Unplug the UPS from the wall socket.+

+3: Disconnect the UPS' internal battery.+

+4: Push and hold the "On" button on the UPS for 5 seconds+

+5: Reconnect internal battery.+

+6: Plug UPS in to known good power source.+

+7: Turn UPS on.+