What does error 61 mean on a Voltronic inverter?

61 means: R Inv Cur FW Over. Surge.

Voltronic inverter error 61

R Inv Cur FW Over

Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.

InverterFault

R Inv Cur FW Over — Fault code 61 shown on the display with the fault icon on: R Inv Cur FW Over.

Cause: Surge.

Source: InfiniSolar-TX-PA_manual.pdf, p.51

What does error 61 mean on a Voltronic inverter?: 61 means: R Inv Cur FW Over. Surge.
Is error 61 a fault or a warning?: 61 is a fault code: the inverter cuts its output and the red LED stays solid until it is cleared.
How do I clear or fix error 61?: 1. Restart the inverter.

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