GoodWe · PV inverters · GoodWe ET G2 6–15 kW (three-phase hybrid inverter)
F37PV Input Overvoltage
Name in the manufacturer's documentation (user manual): PV Input Overvoltage
[1]
In plain words (editorial)
The PV input voltage is too high – according to the manual, typically too many PV modules are connected in series, so the string open-circuit voltage exceeds the inverter's maximum operating voltage.
When to call a service technician: Have your installer check the string configuration.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
Possible causes (source text)
- PVinput voltage is too high. Possible causes: Incorrect PV array configuration: too many PV modules are connected in series in the string, causing the string open-circuit voltage to be higher than the inverter's maximum operating voltage.[2]
Steps given by the manufacturer (source text)
- Check the series configuration of the corresponding PV array string to ensure that the string open-circuit voltage is not higher than the inverter's maximum operating voltage. After the PV array is correctly configured, the inverter alarm will automatically disappear.[3]
⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.
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] 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. 205 official manufacturer document quote verified
- [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. 205 official manufacturer document quote verified
PVinput voltage is too high. Possible causes: Incorrect PV array configuration: too many PV modules are connected in series in the string, causing the string open-circuit voltage to be higher than the inverter's maximum …
- [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. 205 official manufacturer document quote verified
Check the series configuration of the corresponding PV array string to ensure that the string open-circuit voltage is not higher than the inverter's maximum operating voltage. After the PV array is correctly configured, …