107
No AC grid
Fronius · Symo Advanced Manual
What does 107 mean?
The inverter has detected a loss of connection to the AC public grid. It will disconnect and continuously monitor the grid, attempting to resume feeding energy once the grid is detected and stable.
Common Causes
- Utility grid outage or disconnection
- Tripped AC automatic circuit breaker or blown fuse
- Loose or damaged AC grid connections
Repair Steps & Checklist
Click steps to track your progress.
- 1
If this status code keeps recurring, contact your system engineer for further grid analysis.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fronius Symo Advanced Manual