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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.

10252

[Interface]: communication disrupted

SMA · Sunny Boy Solar Inverter

What does 10252 mean?

There is no valid signal detected on the network line connected to the inverter's interface. This indicates a complete loss of network connectivity, preventing data exchange with other devices.

Common Causes

  • Damaged Ethernet network cable.
  • Damaged network connector.
  • Incorrectly plugged network connectors.
  • DHCP server (router) or network switches not operating correctly.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure that the Ethernet network cable and network connector are not damaged.

  2. 2

    Verify that the network connectors are correctly plugged into their respective ports.

  3. 3

    Ensure the DHCP server (router) and any network switches are signaling correct operation.

Browse all codes in this manual (23)
Verified technical data. Last updated: April 2026

Related Faults

101Grid fault10253[Interface]: connection speed goes to [100 Mbit / 10 Mbit]10254[Interface]: duplex mode goes to [Full / Half]
Source: SMA Sunny Boy Solar Inverter
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