What does error PCS-ARM-34 mean on a Felicity ESS?

PCS-ARM-34 means: ARM software fault - DC soft start failure. DC soft start failure (general).

Is error PCS-ARM-34 a fault or a warning?

PCS-ARM-34 is a warning: the unit keeps running. Fix the underlying condition before it escalates.

Reset to restart. Report to manufacturer if it occurs three consecutive times during startup.

PCS-ARM-34

ARM software fault - DC soft start failure

Warning — a protection warning — the ESS unit keeps running, but deal with the cause before it escalates.

Energy storage systemWarning

ARM software fault - DC soft start failure

Cause: DC soft start failure (general).

Reset to restart. Report to manufacturer if it occurs three consecutive times during startup
DC contactor switching-on under judgment, DC voltage difference too large
When running with DCDC, DCDC startup not correct.

Source: FLS-ES232LC-S.pdf

What does error PCS-ARM-34 mean on a Felicity ESS?: PCS-ARM-34 means: ARM software fault - DC soft start failure. DC soft start failure (general).
Is error PCS-ARM-34 a fault or a warning?: PCS-ARM-34 is a warning: the unit keeps running. Fix the underlying condition before it escalates.
How do I clear or fix error PCS-ARM-34?: Reset to restart. Report to manufacturer if it occurs three consecutive times during startup.

Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.