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. 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.

Browse all codes in this manual (9)
Verified technical data. Last updated: March 2026

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Source: SMA SUNNY TRIPOWER X Solar Inverter