PV charging overcurrent
Also displayed as F03 on some models.
Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.
Severity differs by model — check your model below.
The exact meaning depends on your model:
Also applies to:IVCM2024 PROIVCM3024 PRO
PV charging overcurrent
Cause: The charging current from the PV input exceeded the charger stage's protection limit: the array is delivering more current than the charging circuit is rated to handle.
Restart the unit, if the error persists, contact the repair center.
Source: ICM.pdf, p.13
Also applies to:IVEM6048IVEM8048-IIIVEM12048-IIIVEM 8K-12K Series IIIVEM8048-LVIVEM8048
Bus soft start fail
Cause: Internal components failed.
Restart the unit, if the error persists, contact the repair center.
Source: felicitysolar IVEM 6048 Solar Inverter User Guide.pdf, p.36 · IVEM8K-12K-II_compressed.pdf, p.43 · FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf, p.37
PV3 overvoltage fault — The voltage of the PV3 is too high, check the voltage of the string.
Cause: The open-circuit voltage of the PV3 string is above the inverter's permitted DC input range — typically a string configured with too many modules in series.
Source: T-REX-50KHP3G01-user-manual-.pdf, p.45
Also applies to:LUX-X-96050HMG01LUX-X-96050HCG01
High Cell Voltage — Individual cell voltage exceeds maximum allowed value.
Cause: Cell-level overvoltage (imbalance or overcharge of a single cell).
Source: LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf, p.21
Also applies to:LUX-Y-48100HCG01LUX-Y-48100HMG01LUX-Y-48100HR13G01LUX-Y-48100HR9G01
High Cell Voltage — Individual cell voltage exceeded the upper threshold.
Cause: Cell-level overvoltage — imbalance or overcharge of a single cell.
Source: LUX-Y-48100HG01-Lithium-Battery-User-Guide.pdf, p.20
High Cell Voltage
Cause: Cell-level overvoltage — imbalance or overcharge of a single cell.
Source: LUX-Y-48100HG01MN User manual 358-S010025-03 0325(V2.0).pdf, p.27
Also applies to:SCCM4524-IIISCCM4548-IIISCCM6048-IIISCCM8048-IIISCCM10048-IIISCCM12048-III
Battery voltage is too low — 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.
Source: felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf, p.18
Cell voltage is too high — Fault event: an individual battery cell voltage exceeded its high threshold. Inverter cuts off output and fault LED solid on.
Cause: An individual cell voltage exceeded its upper threshold — imbalance or overcharge of a single cell.
Source: LUX-S-1600LG01.pdf, p.22
All IVEM 6048 codes All IVEM8048-II codes All IVEM8048-LV codes
Prefer the full written guide? Read the complete Felicity inverter error-code guide
Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.