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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.

F104

Oil aging/overtemperature

SEW Eurodrive · MOVITRAC 07B System

What does F104 mean?

A display fault indicating that the oil aging sensor has detected overtemperature conditions in the gear unit oil. This can lead to accelerated oil degradation and potential damage to the gear unit.

Common Causes

  • Oil aging sensor signals overtemperature

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Allow the gear unit oil to cool down before further operation

  2. 2

    Check if the gear unit cooling system is functioning properly and is free of obstructions

Browse all codes in this manual (41)
Verified technical data. Last updated: April 2026

Related Faults

F01OvercurrentF03Ground faultF04Brake chopper
Source: SEW Eurodrive MOVITRAC 07B System
Open Manual (Page 353)Search more codes in this manual