Liebherr Fridge/Freezer User Guide
Model Numbers: CU 23.., CU 28.., CU 33.., KGw 1855 2E
Appliance at a Glance
This section provides an overview of the appliance, including its description, intended use, conformity, and energy-saving tips.
1.1 Description of Appliance and Equipment
Details the various components of the fridge/freezer, such as adjustable shelves, egg tray, bottle rack, and drawers. It also notes that food placement affects energy efficiency.
1.2 Appliance Range of Use
The appliance is designed for cooling food products in domestic or household-like environments, including staff kitchens, bed and breakfasts, and by guests in country houses. It is not suitable as a built-in unit. Forbidden applications include storing medicines, laboratory preparations, or use in explosion-risk areas.
1.3 Conformity
The appliance complies with relevant EU and GB directives and regulations.
1.4 SVHC Substances According to REACH Regulation
Information on Substances of Very High Concern (SVHC) is available via a provided link.
1.5 EPREL Database
Details on energy labelling and ecodesign requirements can be found on the European product database (EPREL) using the model ID.
1.6 Installation Dimensions
Provides diagrams and measurements for installing the appliance, including necessary clearances and the impact of wall spacer brackets.
1.7 Saving Energy
Tips for saving energy include ensuring good ventilation, avoiding direct sunlight or heat sources, minimizing door opening times, setting appropriate temperatures, and properly storing food.
General Safety Instructions
This section outlines crucial safety information to ensure the safe and correct use of the appliance. It covers dangers to the user, fire hazards, tipping risks, food poisoning, frostbite, and injury from steam or sharp objects.
Danger for the user: Children and individuals with impaired physical, sensory, or mental abilities can use the device under supervision. Children must not perform cleaning or maintenance. Children aged 3-8 can load/unload, but younger children must be supervised.
Fire hazard: The coolant is flammable. Avoid ignition sources inside the appliance and do not use electrical appliances for defrosting. Store flammable materials like aerosol sprays away from the appliance.
Danger of tipping and falling: Do not use parts like the plinth or drawers as support.
Danger of food poisoning: Do not consume food stored for too long.
Danger of frostbite, numbness and pain: Avoid prolonged skin contact with cold surfaces.
Danger of injury and damage: Do not use steam cleaners or sharp objects for defrosting.
Risk of crushing: Do not hold the hinge when opening/closing the door.
Controls and Displays
3.1 Operating and Control Elements
Identifies the temperature control and SuperCool button.
Putting into Operation
4.1 Transporting the Appliance
Transport the appliance upright in suitable packaging. Do not transport it alone.
4.2 Installing the Appliance
WARNING: Fire hazard due to dampness. Ensure live parts and the mains lead do not become damp. Do not operate outdoors or in areas exposed to splash water. Ensure the mains cable is not trapped. Do not connect appliances to sockets near the back of the appliance. Do not place multi-sockets or power distributors at the back.
WARNING: Leaking coolant and oil. Coolant and oil are flammable. Avoid ignition sources. Do not damage coolant pipes or the compressor.
WARNING: Fire hazard and damage. Do not place heat-emitting appliances on top of the unit.
NOTICE: Ensure good ventilation. Keep vents and ventilation grids unobstructed to prevent overheating.
NOTICE: Avoid placing the appliance directly next to another refrigerator/freezer to prevent condensate formation.
CAUTION: Risk of injury or damage from appliance tipping or door falling open. Ensure the adjustable foot is correctly positioned.
Align the appliance using adjustable feet and a spirit level. Support the door by extending the adjustable foot at the turn hinge.
4.3 Changing Over the Door Hinges
Instructions are provided for changing the door hinges, detailing the tools required and the steps for detaching and fitting the upper and lower doors. This involves unscrewing hinges, removing bearing blocks, and refitting components.
4.4 Sliding into the Row of Units
Details how to integrate the appliance into kitchen units, including the use of top cupboards and ventilation requirements. Specific dimensions for clearances and protrusions are provided.
4.5 Disposing of Packaging
WARNING: Danger of suffocation from packing material. Keep children away. Packaging is made of recyclable materials. Take packaging to an official collection point.
4.6 Connecting the Appliance
NOTICE: Danger of damage from incorrect connection. Do not connect to stand-alone inverters. WARNING: Danger of fire due to incorrect connection. Do not use extension cables or distributor blocks.
Ensure the current type and voltage match the type plate. The socket must be earthed and fused. The socket should be easily accessible.
4.7 Switching on the Appliance
Switch on the appliance about 2 hours before stocking with frozen goods. Set the temperature control to the middle position.
Control
5.1 Refrigerator Compartment
Explains the natural air circulation creating temperature zones within the refrigerator. It is coldest at the rear and warmest at the top front.
5.1.1 Refrigerating Food
Store perishable foods in the coldest areas. Use suitable containers and store raw meat on the bottom shelf. Cover foods that absorb or give off smells. Do not pack foods too closely.
5.1.2 Setting the Temperature
The temperature can be adjusted from 'off' to 'max cold'. A middle setting provides an average refrigerator temperature of approx. 5 °C and a freezer temperature of -18 °C. Factors affecting temperature include door opening frequency, duration, room temperature, and food quantity.
5.1.3 SuperCool Function
This function ensures low temperatures in the freezer compartment. It can be activated manually by pressing the SuperCool button. It deactivates automatically after 70 hours or can be manually deactivated by holding the button for 3 seconds.
5.1.4 Shelves
Instructions for moving and removing shelves, including how to adjust their height and prevent accidental pull-out.
5.1.5 Door Racks
Instructions for moving storage racks.
5.2 Freezer Compartment
The freezer compartment is used for storing frozen food, making ice cubes, and freezing fresh food.
5.2.1 Freezing Food
The rating plate indicates the maximum freezing capacity. Each drawer can hold up to 25 kg, and shelves up to 35 kg of frozen food. Allow a minute after closing the door for the vacuum to equalize.
Maintenance
6.1 Manual Defrosting
The fridge compartment defrosts automatically. For the freezer compartment, a layer of frost may build up. Defrost regularly to maintain energy efficiency. Instructions are provided for the defrosting process, including using hot water and ensuring proper ventilation.
6.2 Cleaning the Appliance
WARNING: Do not use mechanical equipment or steam cleaners for defrosting. Do not use sharp objects. NOTICE: Do not use concentrated cleaning agents, scouring pads, or abrasive cleaners. Do not damage the type plate.
Clean the appliance regularly with soft cloths and a pH-neutral cleaning agent. Empty the appliance and unplug it before cleaning. Clean vent grilles regularly. Clean plastic surfaces with lukewarm water and washing-up liquid.
6.3 Replacing the Interior Lighting
The appliance uses an LED lamp. Only use original Liebherr LED lamps. WARNING: Risk of injury from LED light. Do not look directly into the light. WARNING: Fire hazard from the LED light. Use only the manufacturer's original LED light.
Malfunctions
This section provides a troubleshooting guide for common issues.
Defect and Cause
- Appliance does not work: Not switched on, power plug not inserted, fuse issue.
- Compressor runs for a long time: Normal in energy-saving models or when SuperCool is active.
- LED on the bottom rear flashes: SuperCool is activated or the inverter has a diagnostic LED.
- Excessive noise, bubbling/gurgling, clicking noise, hum: These are normal operating sounds.
- Vibration noises: Appliance not standing firmly on the floor. Align using adjustable feet.
- Outer surfaces are warm: Normal heat dissipation from the refrigeration circuit.
- Temperature not cold enough: Door not closed properly, insufficient ventilation, high ambient temperature, appliance too close to heat source.
- Internal light does not come on: Appliance not switched on or faulty LED lamp.
Remedy
Follow the suggested remedies for each defect, which include switching on the appliance, checking connections, aligning the appliance, closing the door, ensuring ventilation, and contacting customer service.
6.5 Energy Efficiency Class Lighting
Information on the energy efficiency class of the LED light source.
7 Malfunctions
Provides a table of defects, their causes, and remedies. It emphasizes checking for handling errors before contacting customer service.
Decommissioning
8.1 Switching off the Appliance
Turn the temperature control to 'off'.
8.2 Taking the Appliance out of Service
Empty the appliance, switch it off, remove the mains connector, and clean it. Leave the door open to prevent odors.
Disposal
9.1 Preparing Appliance for Disposal
Instructions for removing batteries and lamps if applicable. Batteries should be disposed of separately.
9.2 Disposing of the Appliance in an Environmentally Friendly Manner
WARNING: Leaking coolant and oil can be flammable. Do not damage coolant circuit pipes. Dispose of the appliance separately from unsorted municipal waste via local recycling and collection centers.