Display shows F11 and the wine cooler may not cool; compressor and fans remain off despite correct settings.

Safety first: Unplug the appliance before accessing the control board. Capacitors on the board can retain charge; avoid touching components unnecessarily.

F11 generally indicates a serious internal fault in the main control electronics.

• 1. Power cycle:
  • Disconnect power for 10–15 minutes.
  • Restore power and check if F11 reappears immediately.
• 2. Check supply voltage:
  • Verify that the outlet supplies stable voltage within the range specified by Miele.
  • A surge protector is recommended to prevent future board damage.
• 3. Inspect the control board:
  • Remove the lower front or rear panel to access the main PCB housing.
  • Look for burnt components, cracked solder joints, or a burnt smell.
• 4. Connector check:
  • With power off, re-seat all connectors to the board, ensuring firm contact.
• 5. Replace the main control board:
  • If F11 persists and no external wiring faults are found, the board must be replaced.
  • Order the exact Miele main control module for your model and transfer any configuration jumpers as per service documentation.
• 6. Professional service: Because incorrect board handling can cause further damage, board replacement is best performed by a Miele-authorized technician.