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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

2038

Unstable Grid Frequency

Huawei · SUN2000 Solar Inverter

What does 2038 mean?

The actual grid frequency change rate does not comply with the local power grid standard. This indicates rapid fluctuations in grid frequency, which can compromise grid stability and inverter operation.

Common Causes

  • Power grid exception: The actual grid frequency change rate does not comply with the local power grid standard.
  • The power grid may be abnormal temporarily.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check whether the power grid frequency is within the acceptable range.

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

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2001High String Input Voltage2002DC Arc Fault2003DC arc fault
Source: Huawei SUN2000 Solar Inverter
Open Manual (Page 70)Search more codes in this manual