Over current happen at DCDC circuit
Also displayed as F12 on some models.
Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.
The exact meaning depends on your model:
Also applies to:IVEM6048
Over current happen at DCDC circuit
Cause: Overcurrent in the DC/DC stage.
Restart the unit, if the error persists, contact the repair center.
Source: felicitysolar IVEM 6048 Solar Inverter User Guide.pdf, p.37
Also applies to:IVEM12048-IIIVEM 8K-12K Series II
Over current happen at DC/DC circuit
Cause: Over current detected in the DC/DC converter circuit.
Restart the unit, if the error persists, contact the repair center.
Source: IVEM8K-12K-II_compressed.pdf, p.43
Also applies to:IVEM8048
Over current happen at DC/DC circuit
Cause: The DC/DC converter stage between the battery and the internal bus drew more current than its protection limit allows.
Restart the unit, if the error persists, contact the repair center.
Source: FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf, p.38
PV4 reverse connection fault — Pv4 string positive and negative connection, check the string wiring.
Cause: The PV4 string is connected with positive and negative reversed, so the input stage blocks it until the string wiring is corrected.
Source: T-REX-50KHP3G01-user-manual-.pdf, p.46
PV2 overcurrent — Fault event: PV input channel 2 current exceeded its limit (max input current 30A per MPPT).
Cause: A fault has been detected in the PV input stage — usually a short, ground fault, or isolation failure between the PV array and the inverter chassis. Wet connectors, damaged cable insulation, or moisture in a junction box are common causes.
Source: LUX-S-1600LG01.pdf, p.22
Also applies to:LUX-X-96050HMG01LUX-X-96050HCG01
Soft Start Failed — Pre-charge / soft-start sequence failed during system power-up.
Cause: Pre-charge circuit failure, excessive inverter capacitance, or external short on output.
Restart, if the fault still exists, contact our engineer.
Source: LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf, p.21
Also applies to:LUX-Y-48100HCG01LUX-Y-48100HMG01LUX-Y-48100HR13G01LUX-Y-48100HR9G01
Soft Start Failed — Pre-charge / soft-start sequence failed during power-up.
Cause: Pre-charge circuit failure, excessive inverter capacitance, or an external short on the output.
Restart, if the fault still exists, contact our engineer.
Source: LUX-Y-48100HG01-Lithium-Battery-User-Guide.pdf, p.20
Soft Start Failed
Cause: Pre-charge circuit failure, excessive inverter capacitance, or an external short on the output.
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
Relay is short — The internal relay has a short-circuit fault.
Cause: Internal relay hardware failure, where the relay contacts have welded or shorted closed.
Source: felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf, p.18
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.