F14
Liebherr
User Interface / Display Module Communication Fault
Error code F14; interior display or touch controls may be unresponsive or flicker.
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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.
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Possible Causes
Loose data cable between UI and main PCB, Damaged touch panel, Moisture ingress into display module, Faulty main control board communication driver
How to Fix / Troubleshooting
Safety first: Disconnect mains power before removing the display or control panel.
Step-by-step:
- Remove control panel: Carefully unclip or unscrew the front display panel (often at the top of the door or inside the cabinet).
- Inspect connectors: Check the ribbon cable or harness between the UI and main board. Reseat both ends.
- Check for moisture: Look for condensation or water traces inside the panel. Dry gently and allow to air dry fully.
- Visual inspection: Look for cracked display glass, burnt components, or corrosion.
- Reassemble and test: Restore power and test all buttons and display segments. If F14 persists, the UI or main board may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
User Interface / Display Module
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