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10252

Event 10252 — Communication disrupted

SMA · Sunny Boy Inverters

What does 10252 mean?

There is no valid network signal on the connection line to the inverter.

Common Causes

  • Damaged network cable or connector
  • Network connectors not properly plugged in
  • DHCP server (router) or network switch not operating correctly

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure that the Ethernet network cable is not damaged and that both ends are securely plugged into the inverter and the network device.

  2. 2

    Check that your DHCP server (router) and any network switches are powered on and signaling correct operation.

  3. 3

    Try using a different network cable if available to rule out a faulty cable.

  4. 4

    Restart your router and then the inverter.

Browse all codes in this manual (70)
Verified technical data. Last updated: April 2026

Related Faults

!PV-Overvoltage!!PV-Overvoltage! !DISCONNECT DC! — Overvoltage at DC input10251Event 10251 — Communication status to network switch or DHCP server changed10253Event 10253 — Connection speed changed to 10 Mbit
Source: SMA Sunny Boy Inverters
Open Manual (Page 75)Search more codes in this manual