1. This may be down to the temperature setting being colder than necessary.
Note: See the "Optimum temperature settings" topic for more information on temperature settings.
2. If a large quantity of warm food has recently been stored within the appliance.
Note: See the "Shelf Location and Efficiency" topic for more information on food storage.
3. The temperature outside the appliance (ambient temperature) is too high.
Note: This appliance performs well in the Climate Class SN (10°c to 32°c) up to Class T (16°c to 43°c). It may not work properly if being left at a temperature above or below the indicated range for a long period.
4. Doors are kept open for too long or too often.
5. After the appliance has been installed or if it has been switched off a long time.
Note: This will just be the appliance altering to the desired temperature.