1501
Reconnection fault grid (Country Data Set)
SMA · Sunny Boy Solar Inverter
What does 1501 mean?
The inverter cannot connect to the utility grid because the configured country data set or the value of a user-set parameter does not comply with local grid requirements. This prevents proper grid synchronization and operation.
Common Causes
- Incorrect configuration of the country data set.
- Parameter values not corresponding to local grid requirements.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Ensure that the country data set has been configured correctly by selecting the parameter `Set country standard` and checking its value.
Verified technical data. Last updated: March 2026
Related Faults
Source: SMA Sunny Boy Solar Inverter