GoodWe · PV inverters · GoodWe ET 5–10 kW (three-phase hybrid inverter)
PV/BAT OvervoltageThe PV or BAT voltage is too high
Name in the manufacturer's documentation (user manual): The PV or BAT voltage is too high
[1]
In plain words (editorial)
The PV string voltage (open-circuit) is higher than the inverter's maximum DC input voltage, or the battery voltage is higher than its maximum battery input voltage. The manual's remedy is fewer PV panels per string or fewer battery packs – a design issue for the installer.
When to call a service technician: Contact your installer.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
Possible causes (source text)
- The total voltage (open-circuit voltage) of each PV string is higher than the maximum DC input voltage of the inverter or the battery voltage is higher than the maximum BAT input voltage[2]
Steps given by the manufacturer (source text)
⚠ 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 Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 36 official manufacturer document quote verified
PV/BAT Overvoltage
- [2] GoodWe Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 36 official manufacturer document quote verified
the total voltage
- [3] GoodWe Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 36 official manufacturer document quote verified
check if the pv string voc is lower
- [4] GoodWe Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 36 official manufacturer document quote verified
check if the battery voltage is