Solar · Error codes · Shenzhen SOFARSOLAR Co., Ltd.
ID116Shenzhen SOFARSOLAR Co., Ltd. · SOFAR HYD 3000-6000-EP
ID116 on a Shenzhen SOFARSOLAR Co., Ltd. SOFAR HYD 3000-6000-EP: AC voltage is too high (derating)
Short answer
On a Shenzhen SOFARSOLAR Co., Ltd. inverter, ID116 means: AC voltage is too high (derating). The inverter keeps running with some functions stopped. An engineer is needed to fix the cause.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: AC voltage is too high (derating).
Part involved: VoltDerating.
Likely causes:
- Make sure grid frequency and voltage within range.
Is it safe?
| Does the inverter stop? | Partly |
|---|---|
| Severity | Warning |
| Engineer needed? | Yes |
The inverter keeps running with some functions stopped.
Resetting itself: unknown.
Manual reset: See checks.
What you can check
- Read the ID code and name on the inverter LCD (Event List) or in the SOFAR/SolarMAN app and note it for your installer.
- If frequent on sunny days, tell installer (high local grid voltage).
What the engineer will check
- Grid voltage logging; DNO liaison.
Who to ask for: Sofar-trained PV/battery installer.
Certification: Installer liaison with the DNO; any change to grid-protection settings needs DNO agreement (G98/G99) and the manufacturer's installer/grid code.
What you might notice
Sources
- HYD 3000/5000/6000-EP User Manual ↗ · sofarsolar.com upload 2024-12-27 · page 88 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026