GoodWe · PV inverters · GoodWe ET G2 6–15 kW (three-phase hybrid inverter)
F107On-grid PWM Sync Failure
Name in the manufacturer's documentation (user manual): On-grid PWM Sync Failure
[1]
This page only quotes the original English documentation. A plain-language explanation has not been written yet, so the page is not indexed by search engines.
For technicians
Possible causes (source text)
- Abnormality occurred during carrier synchronization and grid connection.[2]
Steps given by the manufacturer (source text)
- Check whether the synchronization cable is connected properly[3]
- Check whether the master-slave settings are normal;[4]
- Disconnect the AC output side switch and DC input side switch,5 minutes later, close the AC output side switch and DC input side switch. If the fault still exists, contact your dealer or after-sales service center.[5]
⚠ 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 Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 223 official manufacturer document quote verified
F107
- [2] GoodWe Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 223 official manufacturer document quote verified
Abnormality occurred during carrier synchronization and grid connection
- [3] GoodWe Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 223 official manufacturer document quote verified
Check whether the synchronization cable is connected properly
- [4] GoodWe Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 223 official manufacturer document quote verified
Check whether the master-slave settings are normal
- [5] GoodWe Residential Smart Inverter Solutions – ET G2 6-15K (+ LX F / LX D) – User Manual V2.2 (2026-09-30) (V2.2-2026-09-30) , p. 223 official manufacturer document quote verified
Disconnect the AC output side switch and DC input side switch,5 minutes later, close the AC output side switch and DC input side switch. If the fault still exists, contact your dealer or after-sales service center