Liebherr KP 4220 Comfort - Manual (Page 11)

The compressor runs for a long time.
→ The compressor switches to a low speed when little cold is
needed. Although the running time is increased as a result,
energy is saved.
u This is normal in energy-saving models.
→ 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
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.
All LEDs light up in the temperature display.
→ 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).
→ 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
u Press the On/Off button Fig. 3 (1) until the display goes
dark. Release button.
w If the appliance cannot be switched off, the child lock func-
tion is active .
8.2 Taking the appliance out of service
u Empty the appliance.
u Pull out the power plug.
u Clean the appliance (see 6.2) .
u Leave the door open to prevent odour.
9 Disposing of the appliance
The appliance contains some reusable materials
and should be disposed of properly - not simply
with unsorted household refuse. Appliances which
are no longer needed must be disposed of in a
professional and appropriate way, in accordance
with the current local regulations and laws.
When disposing of the appliance, ensure that the refrigeration
circuit is not damaged to prevent uncontrolled escape of the
refrigerant it contains (data on type plate) and oil.
u Disable the appliance.
u Pull out the plug.
u Cut through the connecting cable.
Decommissioning
* Depending on model and options 11