en Troubleshooting Fault Cause and troubleshooting The appliance is not cooling, the displays and lighting are lit. Showroom mode is switched on. Press and hold the temperature setting button (refri- gerator compartment) for 9 to 11 seconds until an audible signal sounds. The LED lighting does not work. Different causes are possible. Call customer service. The customer service number can be found in the enclosed customer service directory. The refrigeration unit is switching on more frequently and for longer. The appliance has been opened frequently. Do not open appliance door unnecessarily. External ventilation openings are covered up.
Remove any obstructions from in front of the ex- ternal ventilation openings. Not a fault. Modern refrigeration machines switch on more frequently and have different power levels to cool more efficiently. Remove any obstructions from in front of the ex- ternal ventilation openings. Install the appliance as far away as possible from heating elements, cookers and other heat sources. Avoid prolonged exposure of the appliance to direct sunlight. Only open the appliance door as briefly as neces- sary. Allow hot food and drinks to cool down first before storing in the appliance. A layer of frost forms on the back wall of the refrigerator com- partment. Not a fault.
Modern refrigeration machines ensure a more even temperature in the refrigerator compart- ment. The back wall of the refrigerator compartment is defrosted automatically at regular intervals. Only open the appliance door as briefly as neces- sary. Pack the food airtight or cover it. Allow hot food and drinks to cool down first before storing in the appliance. 20