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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.

Imax

AC Overcurrent

SMA · SUNNY BOY 5000US-8000US Solar Inverter

What does Imax mean?

The current being fed to the AC grid by the Sunny Boy SB50US-80US-IUS094030 exceeds the specified maximum limit. This condition may be triggered by harmful interference or abnormal load conditions on the grid.

Common Causes

  • AC grid current exceeding the inverter's specification.
  • Harmful interference on the AC grid.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the connected AC grid for conditions that may lead to overcurrent.

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

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Bfr-SrrMicro-controller Communication FailureDeratingInverter Output Power Reduction Due to High TemperatureEEPROMEEPROM Non-Essential Data Access Failure
Source: SMA SUNNY BOY 5000US-8000US Solar Inverter
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