GoodWe · PV inverters · GoodWe ET G2 6–15 kW (three-phase hybrid inverter)
F82N-Bus Overvoltage
Name in the manufacturer's documentation (user manual): N-Bus Overvoltage
[1]
This page only quotes the original English documentation. A plain-language explanation has not been written yet, so the page is not indexed by search engines.
For technicians
Possible causes (source text)
- PVvoltage is too high;[2]
- InverterBUSvoltag e sampling is abnormal;[3]
- The isolation effect of the dual- split transformer at the inverter rear end is poor, causing two inverters to affect each other when connected to the grid; one of the inverters reports DC overvoltage when connected to the grid;[4]
Steps given by the manufacturer (source text)
- Disconnect the AC output side switch and DC input side switch,5 minutes later, close the AC output side switch and DC input side switch. If the fault persists, please contact your dealer or after-sales service center.[5]
⚠ 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. 216 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. 216 official manufacturer document quote verified
PVvoltage is too high
- [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. 216 official manufacturer document quote verified
InverterBUSvoltag e sampling is abnormal
- [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. 216 official manufacturer document quote verified
The isolation effect of the dual- split transformer at the inverter rear end is poor, causing two inverters to affect each other when connected to the grid; one of the inverters reports DC overvoltage when connected to t…
- [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. 216 official manufacturer document quote verified
Disconnect the AC output side switch and DC input side switch,5 minutes later, close the AC output side switch and DC input side switch. If the fault persists, please contact your dealer or after-sales service center