1501
Reconnection fault grid
SMA · SUNNY TRIPOWER X Solar Inverter
What does 1501 mean?
The inverter cannot connect to the utility grid. This occurs when the selected country standard or a set parameter value does not comply with the local grid requirements, preventing proper grid synchronization.
Common Causes
- Incorrect country standard configuration in the inverter.
- Parameter values for grid connection settings do not match local utility grid requirements.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify the configured country standard. Select the parameter Set country standard and check its value to ensure it is correct for the local grid.
Verified technical data. Last updated: March 2026
Related Faults
Source: SMA SUNNY TRIPOWER X Solar Inverter