F106

Control/Sub-control Station Shift Status

Mitsubishi Electric · MELSEC Q-series MELSECNET/H

What does F106 mean?

This error indicates an issue with the control or sub-control station's operational status. It could be related to power, cabling, or the CPU module itself.

Common Causes

  • Problem with the control station's power supply
  • Issue with network cables connected to the control station
  • Fault within the control station's CPU module

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the power supply status of the control station

  2. 2

    Inspect all network cables connected to the control station for physical damage or loose connections

  3. 3

    Check the operational status and error indicators of the control station's CPU

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Verified technical data. Last updated: March 2026

Related Faults

Source: Mitsubishi Electric MELSEC Q-series MELSECNET/H