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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.

44

Firmware version mismatch

Kuka · KRC2 KSS System Message

What does 44 mean?

A mismatch has been detected in the firmware versions between components. This will cause maximum braking and inhibit all active commands.

Common Causes

  • Firmware on connected devices does not match the version expected by the master controller.
  • Incompatible firmware versions prevent proper communication and function.
  • Requires updating firmware on one or more connected devices.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the configuration for firmware compatibility to resolve the version mismatch.

Browse all codes in this manual (36)
Verified technical data. Last updated: April 2026

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Source: Kuka KRC2 KSS System Message
Open Manual (Page 14)Search more codes in this manual