Warning
1 Devices that report this codePCS-ARM-09
ARM software fault - AC overvoltage.
PCS-ARM-09ARM software fault - AC overvoltage.Warning— level 1
Cause
AC bus overvoltage.
Recommended fix
Reset to restart. When AC undervoltage cannot be recovered: 1) Check whether AC switch is disconnected or grid is blacked out; 2) Where there is no disconnection, confirm whether the AC insurance is blown.
Source:
FLS-ES232LC-S.pdfCompiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.