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GoodWe · PV inverters · GoodWe ET 5–10 kW (three-phase hybrid inverter)

DC Bus HighBUS voltage is over-high

Name in the manufacturer's documentation (user manual): BUS voltage is over-high[1]

In plain words (editorial)

The internal DC bus voltage is too high. The manual says to restart the inverter and check whether the fault still occurs; if not, it was an occasional event.

When to call a service technician: If it keeps occurring, contact your installer or GoodWe after-sales.

✎ 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 Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 37 official manufacturer document quote verified DC Bus High
  2. [2] GoodWe Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 37 official manufacturer document quote verified try to restart the inverter. check
  3. [3] GoodWe Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 37 official manufacturer document quote verified situation,or contact after-sales