F14
Miele
Internal Communication Bus Fault
Display shows F14; internal communication between control modules may be lost; unit may be unresponsive.
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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 harness between main control and display module, Faulty communication IC on one of the boards, Electrical noise or surge damage
How to Fix / Troubleshooting
Safety: Disconnect mains power before removing any covers.
Steps:
- Power reset: Unplug for 10–15 minutes, then reconnect.
- Inspect harness: Access the top or rear control area and check the multi‑wire harness connecting the boards. Reseat connectors.
If F14 persists, one of the electronic modules is likely defective. Replacement and configuration should be handled by a Miele service technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Module or Display Module
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