Skip to content
EnergyFaults — error codes and troubleshooting for energy devices

Fronius Error Codes & Faults

Fault and warning codes recorded for Fronius devices, with meanings, severity and safe troubleshooting steps.

Popular Fronius error codes

State 475Moderate

Fronius

Meaning pending official confirmation

September 2026View
State 502Moderate

Fronius

Meaning pending official confirmation

September 2026View
State 509Moderate

Fronius

Meaning pending official confirmation

September 2026View
State 522Moderate

Fronius

Meaning pending official confirmation

September 2026View
State 523Moderate

Fronius

Meaning pending official confirmation

September 2026View

All Fronius fault codes

Filter by code, product family or severity. Every row links to its canonical page.

5 codes shown