Growatt · PV inverters · Growatt MOD TL3-X (three-phase grid inverter, 3–15 kW)
Error 305Over Load Fault
Name in the manufacturer's documentation (user manual): Over Load Fault
[1]
In plain words (editorial)
Overload fault – the output load is out of range. The manual says to reduce the load if it is too large.
When to call a service technician: If the message still exists, contact your installer or Growatt.
✎ 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] 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 305 Over Load Fault
- [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
Check whether output load over range; If load too large, please reduce load
- [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