18
Control and Information Systems
The control and information systems consist of a temperature display,
an optical warning display and an acoustic warning device.
The system warns of:
–open appliance door;
–power interruption;
–excessive temperature in the freezer compartment (only in the
operation mode "Freezing");
–possible partial or complete thawing of frozen goods;
–functional disturbances at the appliance.

"Open Door"-Warning

The red warning indicator blinks when the door is opened. If the door
remains open longer than approx. 80 seconds, an extra warning tone
sounds. If you need more time for sorting or rearranging frozen food-
stuff, you can switch off the 80 seconds warning tone by pressing the
WARNING OFF button.

Power Interruption

If the power supply is interrupted, an audible warning sounds at
20 second intervals. In addition, the current actual temperature in the
freezer compartment is indicated in blinking fashion by the tempera-
ture display (2 seconds on, 2 seconds off). After one hour the audible
warning only sounds at 40 second intervals.
The audible warning can be switched off for about 2 hours with the
WARNING OFF button.
In the event of a power interruption, the control and information sys-
tems can maintain operation of the temperature display and warning
signal for up to 12 hours.

Temperature Warning

(only in the operating mode ’’Freezing“)
The red warning display blinks and an audible warning sounds, as soon
as the temperature in the freezer compartment climbs to more than
5°C above the selected SET temperature. A rise in temperature of more
than 5°C may be caused by:
–frequent door opening for long periods of time;
–loading with large quantities of warm foods;
–an error with the appliance.