Skip to content
EN

Growatt · PV inverters · Growatt MOD TL3-X (three-phase grid inverter, 3–15 kW)

Error 404bus sample fault

Name in the manufacturer's documentation (user manual): bus sample fault[1]

In plain words (editorial)

The inverter reports a fault in measuring its internal bus voltage (“bus sample fault”). The manual says to restart the inverter.

When to call a service technician: If the error stays, contact the manufacturer.

✎ 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] Installation & Operation Manual – MOD 3–15KTL3-X (GR-UM-212-A-05, AU ed. 2021-12) (GR-UM-212-A-05) , p. 27 official manufacturer document quote verified Error 404 bus sample fault
  2. [2] Installation & Operation Manual – MOD 3–15KTL3-X (GR-UM-212-A-05, AU ed. 2021-12) (GR-UM-212-A-05) , p. 27 official manufacturer document quote verified Restart inverter
  3. [3] Installation & Operation Manual – MOD 3–15KTL3-X (GR-UM-212-A-05, AU ed. 2021-12) (GR-UM-212-A-05) , p. 27 official manufacturer document quote verified If error message still exists,contact manufacturer