Display shows E6 and interior light or fan operation is erratic

Safety: Disconnect the refrigerator from power before working on switches or wiring.

Steps:

• Identify door switch type: Some Zanussi models use a push-button switch in the cabinet frame; others use a hidden magnetic reed sensor.
• Test mechanical switch: For push-button types, press the switch repeatedly. If the interior light flickers or stays on/off incorrectly, the switch may be faulty. Remove the switch (usually clipped in) and test continuity with a multimeter.
• Check magnetic sensor: For reed sensors, ensure the door magnet (often embedded in the door gasket) is present and aligned with the sensor area. If the display shows door open when closed, the sensor or magnet may be faulty.
• Inspect wiring: Check for broken or loose wires behind the switch or in the top hinge area where cables pass into the door.
• Replace components: Fit a new door switch or reed sensor assembly if defective. Ensure it is seated firmly and the door closes without obstruction.

Professional help: If the wiring inside the cabinet is damaged or inaccessible, contact a service technician.