Error E11 displayed; internal light remains off even when doors are open, or flickers.

Safety first: Unplug the refrigerator before removing light covers or working on wiring. LED modules operate at low voltage but are powered by mains-derived circuits.

Step 1 – Check door switch operation:

• Verify that the door switch actuates smoothly when the door opens and closes.
• If the switch is stuck or broken, replace it first.

Step 2 – Inspect LED module:

• Remove the light cover in the affected compartment.
• Check for signs of moisture ingress or burn marks on the LED board.

Step 3 – Replace LED module:

• Disconnect the old module and install a Fhiaba-compatible LED assembly.
• Ensure connectors are fully seated and wiring is not pinched.

Step 4 – Control board check:

• If new LEDs and switches do not restore lighting and E11 persists, the lighting driver circuit on the main control board may be defective.
• Board replacement should be carried out by a technician.