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GoodWe · PV inverters · GoodWe ET G2 6–15 kW (three-phase hybrid inverter)

F19Grounding Abnormal

Name in the manufacturer's documentation (user manual): Grounding Abnormal[1]

In plain words (editorial)

Grounding problem: the inverter's protective ground wire is not connected, or – where the PV string output is grounded – no isolation transformer is connected on the inverter output side.

When to call a service technician: Have your installer or electrician check the grounding.

✎ 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] GoodWe Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 198 official manufacturer document quote verified
  2. [2] GoodWe Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 198 official manufacturer document quote verified The inverter's Protection ground wire is Not Connected
  3. [3] GoodWe Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 198 official manufacturer document quote verified When the PV string output is grounded, no isolation transformer is connected on the inverter output side
  4. [4] GoodWe Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 198 official manufacturer document quote verified Please confirm whether the inverter's Protection ground wire is Not Connected properly
  5. [5] GoodWe Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 198 official manufacturer document quote verified If the PV string output is grounded, please confirm whether an isolation transformer is connected to the inverter output side