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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-(3KTL-10KTL)-M1 Solar Inverter

What does 2038 mean?

The power grid frequency's actual change rate does not meet the requirements of the local power grid code. This can indicate temporary power grid abnormalities or a persistent issue with grid frequency stability.

Common Causes

  • Power grid exception: The actual change rate of the power grid frequency does not meet the requirements for the local power grid code.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Monitor if the alarm occurs occasionally, indicating a temporary power grid abnormality. The SUN2000 automatically recovers when the grid stabilizes.

  2. 2

    If the alarm persists, check whether the power grid frequency is within the acceptable range. If it is outside the acceptable range, contact the local power operator.

Browse all codes in this manual (24)
Verified technical data. Last updated: April 2026

Related Faults

2001High string input voltage2002DC arc fault2003DC arc fault
Source: Huawei SUN2000-(3KTL-10KTL)-M1 Solar Inverter
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