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IGBTs

IGBTs — Fault in power electronics

SMA · Sunny Boy Inverters

What does IGBTs mean?

The inverter's internal hardware monitoring system has detected a fault in its power electronics, specifically within the IGBT components. This indicates a hardware malfunction that prevents proper inverter operation.

Common Causes

  • Internal hardware fault in power electronics.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Contact your installer to diagnose the issue with the internal components.

  2. 2

    If the installer cannot resolve the issue, contact the SMA Serviceline for further support.

  3. 3

    Do not attempt to repair the inverter yourself as it involves complex internal electronics.

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 changed10252Event 10252 — Communication disrupted
Source: SMA Sunny Boy Inverters
Open Manual (Page 31)Search more codes in this manual