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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.

25, 94

EEPROM error

SEW Eurodrive · [PDF] Operating Instructions

What does 25, 94 mean?

An error has been detected in the EEPROM (Electrically Erasable Programmable Read-Only Memory) of the inverter. This indicates a problem with reading or writing configuration data, which can lead to incorrect operation, loss of settings, or system malfunction. A reset may clear temporary issues.

Common Causes

  • EEPROM read/write error.
  • Corruption of stored configuration data in the EEPROM.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Reset the fault by switching off the DC 24 V supply voltage to the inverter for at least 10 seconds.

Browse all codes in this manual (11)
Verified technical data. Last updated: April 2026

Related Faults

01Over-current in output stage06Phase failure07DC link voltage too high
Source: [PDF] Operating Instructions
Open Manual (Page 173)Search more codes in this manual