Solar · Error codes
Why does my Solis inverter keep showing OV-G-V01 (grid over voltage)?
Short answer
OV-G-V01 means mains voltage exceeded the inverter's upper limit, so it disconnected. Occasional events clear automatically. If it happens often on sunny days, Solis says check grid voltage, the AC breaker and cable; protection limits may only be changed with the network operator's consent (S6 manual 04/2024, checked 24 September 2026).
Last checked 24 September 2026 · 1 source
In more detail
- OV-G-V02-05 are further over-voltage stages.
- LmtByVg is a status: output reduced by Volt-Watt mode, not a fault.
- Ask installer to log voltage and contact the DNO.
The facts, dated
- 01Solis: change protection points only after obtaining consent of the local power operator.
manufacturer · UK · checked 24 September 2026 · solisinverters.com
Sources
- solisinverters.com — www.solisinverters.com/uploads/file/Solis_Manual_S6-GR1P(2,5-6)K-S_FN_EUR_V1,1(2…
Last checked: 24 September 2026