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Solar · Error codes · Shenzhen SOFARSOLAR Co., Ltd.
ID01Shenzhen SOFARSOLAR Co., Ltd. · SOFAR HYD 3000-6000-ES

ID01 on a Shenzhen SOFARSOLAR Co., Ltd. SOFAR HYD 3000-6000-ES: The grid voltage is too high

Short answer

On a Shenzhen SOFARSOLAR Co., Ltd. inverter, ID01 means: The grid voltage is too high. The inverter stops until the fault clears or is reset. An engineer is needed to fix the cause.

Reviewed 24 September 2026 · 1 source

What it means

The manual says: The grid voltage is too high.

Part involved: GridOVP.

Likely causes:

  • If occasional, grid abnormal temporarily; inverter returns to normal automatically. If frequent, check grid voltage/frequency within range and AC breaker/wiring; if out of range and wiring correct, contact Sofar support to change protection points after DNO approval.

Is it safe?

Does the inverter stop?Yes
SeverityFault — clears by itself when the condition goes
Engineer needed?Yes

The inverter stops until the fault clears or is reset.

Resetting itself: yes.

Manual reset: Automatic when condition clears.

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 occasional, no action - it clears when the grid returns to normal.
  • Check the inverter's AC breaker is on; if it happens often, tell your installer (possible high local grid voltage).

What the engineer will check

  • Measure grid V/f; check AC breaker and wiring; DNO approval before changing protection settings.

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

A code explains what the controller detected, not a confirmed root cause.

Reviewed: 24 September 2026