Liebherr freezer CBNes 4875 Premium BioFresh NoFrost Manual

The Liebherr CBNes 4875 is a premium NoFrost freezer featuring BioFresh technology, designed for optimal food preservation. It offers generous storage capacity, energy-efficient operation, intuitive controls, and advanced features like SuperCool and SuperFrost. Below are key sections covering safety, features, installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. First Use 4. Technical Specifications 5. Controls & Settings 6. BioFresh Technology 7. NoFrost System 8. Energy Saving Tips 9. Care & Cleaning 10. Safety Information 11. Troubleshooting

Features at a Glance

Key components: NoFrost system, BioFresh compartments, electronic temperature display, adjustable shelves, door storage, LED interior lighting, and energy efficiency class.

Feature	Description
NoFrost System	Prevents ice buildup automatically; no manual defrosting required
BioFresh Technology	Dual compartments with precise humidity control for longer freshness
Electronic Controls	Digital display with temperature adjustment and mode selection
SuperCool Function	Rapidly cools contents after loading groceries
SuperFrost Function	Fast-freezes large quantities while preserving food quality
LED Interior Lighting	Energy-efficient, bright illumination
Adjustable Shelves	Flexible storage configuration
Door Alarm	Audible alert if door is left open
Energy Class	High energy efficiency rating
Reversible Doors	Can be hinged left or right for installation flexibility

Installation & Setup

Unpack and inspect contents. Position on a level, stable floor.

Remove all packaging materials and protective films.
Ensure adequate ventilation: Leave minimum clearance at back and sides as specified.
Level the appliance: Adjust front feet to ensure door closes properly.
Connect to power: Plug into a grounded 120V AC outlet.
Allow stabilization: Let unit stand upright for several hours before first use.

WARNING! Appliance is heavy; use two people for moving. Ensure floor can support the weight.

First Use

Power on the freezer; set initial temperature.

Turn on: Press power button or connect to electricity.
Set temperature: Use control panel to set recommended freezer temperature (e.g., -18°C / 0°F).
Pre-cool: Allow empty freezer to reach set temperature before loading food.
Activate BioFresh: Set humidity levels in BioFresh compartments if needed.
Load food: Distribute items evenly for optimal air circulation.

CAUTION! Do not overload shelves. Allow space between items for cold air flow.

Technical Specifications

Model: CBNes 4875 Premium
Type: Upright Freezer with NoFrost
Total Capacity: Approximately 287 liters (10.1 cu. ft.)
BioFresh Compartments: 2 zones with adjustable humidity
NoFrost Technology: Automatic defrosting
Energy Consumption: kWh/year (as per energy label)
Climate Class: Suitable for ambient temperatures up to 43°C (109°F)
Noise Level: Low dB(A) rating
Power Supply: 120V AC, 60Hz
Dimensions (HxWxD): Approx. 177 x 60 x 63 cm

Controls & Settings

Electronic control panel with digital display and touch buttons.

Main Functions: Temperature adjustment (Freezer and BioFresh), SuperCool, SuperFrost, Alarm reset, Child lock.

Temperature Settings: Freezer zone: Adjustable between -24°C to -16°C (-11°F to 3°F). BioFresh zones: Can be set to specific humidity levels (DrySafe or HydroSafe).

Special Modes: SuperCool: Rapid cooling for 6 hours then returns to normal. SuperFrost: Intensive freezing for 24-65 hours. Holiday Mode: Energy-saving setting for extended absence.

BioFresh Technology

BioFresh compartments maintain optimal temperature and humidity for different food types.

DrySafe: Lower humidity (approx. 50%) ideal for fish, meat, dairy.
HydroSafe: Higher humidity (approx. 90%) perfect for fruits, vegetables, herbs.
Adjust humidity using sliding controls on each compartment.
Food stays fresh up to three times longer than in conventional refrigerator compartments.

Tip: Store food in original packaging or appropriate containers to maximize freshness.

NoFrost System

The NoFrost system automatically prevents ice formation throughout the freezer.

How it works: Cold air circulates evenly; moisture is extracted and evaporated.
Benefits: No manual defrosting needed, consistent temperature, better food preservation.
Maintenance: Ensure air vents are not blocked by food items.
Indicator: Frost warning light may illuminate if system requires attention.

WARNING! Never use sharp objects to remove ice if any forms. Use plastic scraper only.

Energy Saving Tips

Optimize energy efficiency with proper usage.

Keep door closed as much as possible; check seal regularly.
Allow hot food to cool before placing in freezer.
Ensure adequate ventilation around appliance.
Defrost frozen food in refrigerator compartment to utilize cold.
Use SuperCool/SuperFrost functions only when necessary.
Set appropriate temperature; -18°C (0°F) is sufficient for most frozen foods.

Care & Cleaning

Unplug before cleaning. Use mild detergent and warm water only.

Remove all food and shelves/drawers.
Clean interior with soft cloth and mild solution; rinse with clean water.
Wipe door seals carefully to maintain effectiveness.
Clean exterior with damp cloth; avoid abrasive cleaners.
Dry all surfaces before reconnecting power and reloading food.

CAUTION! Never use steam cleaners, scouring pads, or chemical cleaners. Do not pour water directly into appliance.

Safety Information

Important safety instructions for proper operation.

Connect to properly grounded outlet only.
Do not use extension cords or multi-plug adapters.
Keep ventilation openings clear of obstruction.
Do not store explosive substances or aerosol cans.
Keep children from playing with controls or climbing inside.
Unplug during thunderstorms or extended absences.
Service only by authorized technicians.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Appliance not cooling	Power issue, door open	Check power connection; ensure door is fully closed; verify temperature setting.
Unusual noises	Leveling, fan obstruction	Ensure appliance is level; check for items blocking fan or vents.
Door alarm sounds	Door ajar	Close door properly; check for obstructions in seal.
Frost buildup	Door seal, frequent opening	Check door seal for damage; minimize door openings; ensure NoFrost system is active.
Display not working	Power, child lock	Check power supply; deactivate child lock if enabled.
Water in interior	Drain blocked	Check drain hole at back of appliance; clear if blocked.

Reset: Unplug for 5 minutes then reconnect to reset electronic controls.

Service: Contact authorized Liebherr service center. Visit www.liebherr.com or call customer support.