What does error PCS-ARM-14 mean on a Felicity ESS?

PCS-ARM-14 means: ARM software fault - system phase loss. Loss of one or more grid phases.

Is error PCS-ARM-14 a fault or a warning?

PCS-ARM-14 is a warning: the unit keeps running. Fix the underlying condition before it escalates.

PCS shall be automatically reset and restarted after the fault is rectified on the site. Check whether the wiring misses a phase.

PCS-ARM-14

ARM software fault - system phase loss

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

Energy storage systemWarning

ARM software fault - system phase loss

Cause: Loss of one or more grid phases.

PCS shall be automatically reset and restarted after the fault is rectified on the site.
Check whether the wiring misses a phase.

Source: FLS-ES232LC-S.pdf

What does error PCS-ARM-14 mean on a Felicity ESS?: PCS-ARM-14 means: ARM software fault - system phase loss. Loss of one or more grid phases.
Is error PCS-ARM-14 a fault or a warning?: PCS-ARM-14 is a warning: the unit keeps running. Fix the underlying condition before it escalates.
How do I clear or fix error PCS-ARM-14?: PCS shall be automatically reset and restarted after the fault is rectified on the site. Check whether the wiring misses a phase.

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