APC SRT10RMKXLI Error P.15

[NyanLinHtay]

Dear community,

The UPS SRT10KRMXLI Shows error P15 on the display with a continuous alarm.
Please any idea on this issue?

Thank you,

[JonPro]

Hi @NyanLinHtay 

Thank you for reaching out to the SE Community, my name is Jon and I will assist you with this query.  Apologies for the late revert.  Upon checking, Error P.15 has something to do with the Bypass Power Factor Correction (PFC) Relay.  The Battery PFC  Relay was welded.

To recover from the fault, you can clear the alarm and turn the UPS/output ON via the display.  If the alarm cannot be cleared, you can do a brain dead on the UPS.  If it cannot be cleared, the UPS would need to be replaced.

You may follow this article for the brain dead procedure, Video: How to perform a cold start and brain dead on Smart-UPS 

For SMC, SMT, SMX, and SRT Units:
1) Turn off and unplug UPS from the wall
2) Disconnect Battery
3) You may hear an audible "click" from the UPS.
4) Reconnect battery, plug unit back in the wall, and turn UPS back on.