2035

Unbalanced Grid Voltage

Huawei · SUN2000 Solar Inverter

What does 2035 mean?

The difference between grid phase voltages exceeds a specified upper threshold. This indicates an imbalance in the three-phase power supply, which can affect inverter operation and grid stability.

Common Causes

  • The difference between grid phase voltages exceeds the upper threshold.
  • The power grid may be abnormal temporarily.
  • The connection between the AC switch and the output power cable is faulty.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check whether the grid voltage is within the acceptable range.

  2. 2

    Check the connection between the AC switch and the output power cable.

Browse all codes in this manual (33)
Verified technical data. Last updated: March 2026

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Source: Huawei SUN2000 Solar Inverter