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SolarEdge · PV inverters · SolarEdge SE3K–SE10K (three-phase inverter with power optimizers, SetApp)

Error 2x9Ground current surge.

Name in the manufacturer's documentation (fault list): Ground current surge.[1]

In plain words (editorial)

A ground current surge was detected. The manual says to check the AC connection to the inverter and to ask the grid operator whether a large surge source or irregular load exists near the site.

When to call a service technician: If the grid has no problems, contact SolarEdge support (through your installer).

✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.

The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →

Sources

Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.

  1. [1] SolarEdge Inverters Error Codes and Troubleshooting – User Guide (Version 1.2, 2026-09) (se-inverter-installation-guide-error-codes (v1.2)) , p. 9 official manufacturer document quote verified 2x9 Ground current surge.
  2. [2] SolarEdge Inverters Error Codes and Troubleshooting – User Guide (Version 1.2, 2026-09) (se-inverter-installation-guide-error-codes (v1.2)) , p. 9 official manufacturer document quote verified Check the AC connection to the inverter
  3. [3] SolarEdge Inverters Error Codes and Troubleshooting – User Guide (Version 1.2, 2026-09) (se-inverter-installation-guide-error-codes (v1.2)) , p. 9 official manufacturer document quote verified Check with the grid operator if a large surge source or irregular load exists near the site
  4. [4] SolarEdge Inverters Error Codes and Troubleshooting – User Guide (Version 1.2, 2026-09) (se-inverter-installation-guide-error-codes (v1.2)) , p. 9 official manufacturer document quote verified If the grid does not have problems contact SolarEdge support