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.

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Verified technical data. Last updated: March 2026

Related Faults

Source: [PDF] Operating Instructions