Liebherr CBNPes 3756 Premium BioFresh NoFrost - Manual (Page 15)

u The compressor runs for longer in order to rapidly cool the
food. This is normal.
→ SuperCool is activated.
u The compressor runs for longer in order to rapidly cool the
food. This is normal.
A LED on the bottom rear of the appliance (at the
compressor) flashes regularly every 15 seconds*.
→ The inverter is equipped with a diagnostic LED.
u The flashing is normal.
Excessive noise.
→ Due to the various speed steps, speed-regulated*
compressors can generate different running noises.
u The sound is normal.
A bubbling and gurgling noise.
→ This noise comes from the refrigerant flowing in the refriger-
ation circuit.
u The sound is normal.
A quiet clicking noise.
→ The noise is produced whenever the refrigeration unit
(motor) automatically switches on or off.
u The sound is normal.
A hum. It is briefly a little louder when the refrigeration
unit (the motor) switches on.
→ The refrigeration increases automatically when the
SuperFrost, function is activated, fresh food has just been
placed in the appliance or the door has been left open for a
while.
u The sound is normal.
→ The refrigeration increases automatically when the
SuperCool function is activated, fresh food has just been
placed in the appliance or the door has been left open for a
while.
u The sound is normal.
→ The ambient temperature is too high.
u Solution: (see 1.2)
A low hum.
→ The sound is produced by air flow noise of the fan.
u The sound is normal.
Vibratory noise.
→ The appliance is not fixed to the ground. The running of the
cooling unit therefore makes objects and adjacent furniture
vibrate.
u Adjust appliance via the height-adjustable feet.
u Move bottles and containers apart.
The temperature display indicates: F0 to F9
→ There is a fault.
u Please contact the after-sales service (see Maintenance).
Power failure flashes in the temperature display . The
highest temperature reached during power failure is indi-
cated in the temperature display.
→ The freezer temperature rose too high over the last hours or
days due to a power failure or power interruption. When the
power interruption is over, the appliance will continue to
operate in the last temperature setting.
u To cancel the display of the warmest temperature: press
alarm button Fig. 3 (19) .
u Check the quality of the food. Do not consume spoiled food.
Do not re-freeze thawed food.
DEMO shines in the temperature display.
→ The demo mode is activated.
u Please contact the after-sales service (see Maintenance).
The outer surfaces of the appliance are warm*.
→ The heat of the refrigeration circuit is used to prevent
condensate from forming.
u This is normal.
The temperature is not cold enough.
→ The door of the appliance is not properly closed.
u Close the door of the appliance.
→ Insufficient ventilation.
u Clear ventilation grilles.
→ The ambient temperature is too high.
u Solution: (see 1.2) .
→ The appliance was opened too frequently or for too long.
u Wait to see whether the appliance reaches the required
temperature by itself. If not, please contact the after sales
service (see Maintenance).
→ Too much fresh food was placed inside without SuperFrost.
u Solution: (see 5.7.4)
→ The temperature is incorrectly set.
u Set the temperature to a colder setting and check after 24
hours.
→ The appliance is too close to a source of heat (stove, heater
etc).
u Change the position of the appliance or the source of heat.
The interior light is not on.
→ The appliance is not switched on.
u Switch on the appliance.
→ The door was open longer than 15 min.
u The interior light automatically switches off if the door has
been open for about 15 min.
→ The LED illumination is defective or the cover is damaged:
WARNING
Risk of injury due to electric shock!
Live parts are located under the cover.
u Have the LED interior light changed or repaired only by the
customer service or by specialized personnel trained for the
purpose.
WARNING
Danger of injury by LED lamp!
The light intensity of the LED illumination corresponds to laser
class 1/1M.
If the cover is defective:
u Do not look into the illumination with optical lenses from the
immediate proximity. This can cause injury to the eyes.
8 Decommissioning
8.1 Switching off the appliance
Note
u To switch off the entire appliance it is necessary only to
switch off the freezer compartment.
8.1.1 Switching off the freezer compartment
u Press the freezer compartment On/Off button
Fig. 3 (17) for approx. 2 seconds.
w The temperature displays are dark. The appli-
ance is switched off.
8.1.2 Switching off the refrigerator compart-
ment with BioFresh compartment
Note
u The refrigerator compartment can be switched off sepa-
rately, if required.
Decommissioning
* Depending on model and options 15