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

Utility LossUtility Loss

Name in the manufacturer's documentation (user manual): Utility Loss[1]

In plain words (editorial)

The inverter does not detect the grid connection. The manual says to make sure grid power is available and the AC cables are connected well; if all is well, turn the AC breaker off and on again after 5 minutes.

When to call a service technician: If the grid is up and the message stays, contact your installer.

✎ 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. 35 official manufacturer document quote verified Utility Loss
  2. [2] GoodWe Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 35 official manufacturer document quote verified Inverter does not detect the connection of grid
  3. [3] GoodWe Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 35 official manufacturer document quote verified Check (use multi-meter) if AC side has voltage
  4. [4] GoodWe Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 35 official manufacturer document quote verified Make sure AC cables are connected tightly and well
  5. [5] GoodWe Hybrid Inverter ET Series | ET Plus Series – User Manual V1.1 (2021-02-10) (V1.1-2021-02-10) , p. 35 official manufacturer document quote verified please try to turn off AC breaker and turn on again in 5 mins