Fault
5 Devices that report this code03
PV charging overcurrent.
03PV charging overcurrent.Fault
Description
PV charging overcurrent.
Recommended fix
Restart the unit, if the error persists, contact the repair center.
Source:
ICM.pdf · page 1303High Cell Voltage.Warning
Description
Individual cell voltage exceeds maximum allowed value.
Cause
Cell-level overvoltage (imbalance or overcharge of a single cell).
Recommended fix
Stop charging.
Source:
LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 2103High Cell Voltage.Warning
Description
Individual cell voltage exceeded the upper threshold.
Recommended fix
Stop charging.
Source:
LUX-Y-48100HG01-Lithium-Battery-User-Guide.pdf · page 2003High Cell Voltage.Fault
Description
High Cell Voltage.
Source:
LUX-Y-48100HG01MN User manual 358-S010025-03 0325(V2.0).pdf · page 2703Battery voltage is too low.Critical
Description
The connected battery voltage has dropped below the acceptable minimum threshold.
Cause
Loose, broken, or improperly connected battery wiring, or a deeply discharged/damaged battery.
Recommended fix
1. Check the battery wire connection. 2. if the wire connection is ok, please contact your installer.
Source:
felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 18Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.