APC SURT8000XLI Internal Problem - Need Help

[p0rte]

When i turn on the ups, this turns on the fault led light and two batteries lights. I guess it's a error code. Does anyone have a clue?

Error code:

[JonPro]

Hi @p0rte 

Thank you for using the SE Community.

Apologies for the inconvenience this has caused.  I understand that you are having an issue with your SURT 8kVA UPS and needed help in diagnosing the fault.  Let me assist you in decoding the fault and attempting to recover from it.

Indeed, the UPS has encountered a fault and the battery bar graph shows us the fault that it has encountered.  The UPS has encountered a battery capacitor soft start fault.  You can perform the brain dead and cold start procedures outlined on the FAQ provided below and if this wouldn't clear the fault and/or if the fault would return, the UPS would need to be replaced.

How to perform a cold start and brain dead on Smart-UPS 

Brain dead Procedure:

For SU, SUA, SUM, or SURT Units:
1) Turn off and unplug UPS from wall
2) Press and hold the OFF button again (Alternately, you could disconnect the internal battery)
3) You may see a quick flash of the LED's and you should hear an audible ""click"" from the UPS.
4) Plug UPS back into the wall and turn UPS back on.

Cold start procedure:

1) Turn off and unplug the Smart-UPS from wall. Remove any attached load.
2) Press and hold the power button (labeled ""I/TEST"" on legacy non-LCD screen units) on the front of the UPS until you hear a LONG beep.
3) Let go DURING the long beep. If you let go after the beep ends you will need to try again.
4) UPS should go through its' normal self test and end up on battery with 4 beeps every 30 seconds. This shows that the UPS is functioning correctly and can both pass a self test and function on battery.
5) You can now plug your UPS back into the wall. If the input power is acceptable the UPS will transfer back online.