F14

Miele Communication Bus Fault (Display to Main Board)

Machine displays F14; communication error between modules

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Loose ribbon cable between display and main board, oxidized connectors, defective display PCB, defective main control board

How to Fix / Troubleshooting

Safety first: Disconnect power before opening the housing.

Inspection steps:

Remove the top/front panel to access the display module and main control board.
Locate the ribbon cable or harness connecting the display to the main board.
Carefully disconnect and reconnect the cable at both ends to clean contacts.
Inspect the cable for kinks, cuts, or broken traces.

Resolution:

If reseating the cable resolves the issue, reassemble and monitor.
If F14 persists, substitute the display module (if available) or main board to identify the faulty component. Replacement is best handled by a technician due to calibration and programming requirements.

Repair Difficulty

Professional Required 5/5

Required Part

Display Module Ribbon Cable / Display PCB

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