Liebherr freezer GN 3835 Comfort Manual

The Liebherr GN 3835 Comfort is a high-quality upright freezer designed for efficient and reliable frozen food storage. It features FrostSafe technology to prevent food from freezing together, SuperFrost for rapid freezing, SmartSteel interior lining, adjustable glass shelves, temperature display, door open alarm, reversible doors, and energy-efficient operation. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Storage Organization 7. SuperFrost Function 8. Energy Saving Tips 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Upright freezer cabinet, adjustable thermostat, FrostSafe drawers, glass shelves, temperature display, door alarm, reversible doors.

Feature	Description
FrostSafe technology	Prevents food from freezing together in drawers
SuperFrost function	Rapid freezing to preserve food quality
SmartSteel interior	Durable, hygienic, and easy-to-clean lining
Adjustable glass shelves	Flexible storage configuration
Temperature display	Digital display of current interior temperature
Door open alarm	Audible alert if door is left open
Reversible doors	Can be hung to open left or right
Energy efficiency class	A++ or higher for low power consumption
Fast freezing compartment	Designated area for quick freezing
Child lock	Prevents unintended setting changes

Installation

Unpack and inspect contents. Ensure proper ventilation space.

Choose location: Place on level floor away from heat sources and direct sunlight.
Adjust feet: Use adjustable feet to level the appliance.
Ventilation: Maintain at least 5 cm clearance at back and sides.
Electrical connection: Plug into grounded 230V/50Hz outlet.
Door reversal (if needed): Follow instructions in manual to change hinge side.

WARNING! Do not tilt freezer more than 45 degrees during transport. Allow to stand upright for 4 hours before first use.

First-Time Setup

After installation, prepare freezer for first use.

Initial cleaning: Wipe interior with mild soap solution and dry thoroughly.
Power on: Connect to power, the temperature display will illuminate.
Set temperature: Adjust thermostat to recommended -18°C for freezing.
Pre-cooling: Allow empty freezer to run for 2-3 hours before loading food.
Activate SuperFrost: Press SuperFrost button 24 hours before loading large quantities.

CAUTION! Do not use sharp objects to remove protective film or ice.

Specifications

Model: GN 3835 Comfort
Type: Upright freezer
Energy Class: A++ (or higher as per regulation)
Total Capacity: 383 liters
Freezing Capacity: Up to 25 kg/24h
Star Rating: **** (4-star, suitable for freezing fresh food)
Noise Level: ≤ 40 dB(A)
Climate Class: SN-T (ambient temperature +10°C to +43°C)
Power Supply: 230V~50Hz
Annual Energy Consumption: Approximately 237 kWh (based on standard test)
Dimensions (HxWxD): 185 x 60 x 63 cm

Controls and Settings

Control panel located inside or on front of appliance.

Temperature Setting: Rotary knob or digital buttons to set between -15°C and -24°C (recommended -18°C).

SuperFrost Button: Activates rapid freezing for 24-65 hours, then automatically returns to normal operation.

Alarm Reset: Button to silence door open alarm after closing door.

Display: Shows set temperature, actual temperature, and active functions (SuperFrost icon).

Child Lock: Press and hold specific buttons to lock/unlock controls.

Storage Organization

Proper organization maximizes efficiency and food preservation.

Use FrostSafe drawers for items that tend to stick together (berries, meat portions).
Place fresh food to be frozen in the fast freezing compartment (top shelf).
Store already frozen food on middle and lower shelves.
Label and date all packages for proper rotation.
Do not overload shelves; allow air circulation between items.
Keep door closed as much as possible to maintain temperature.

Tip: Divide large quantities into smaller portions for faster freezing.

SuperFrost Function

For freezing fresh food quickly to preserve quality.

Activation: Press SuperFrost button 24 hours before adding fresh food.
Loading: Place food in fast freezing compartment (top shelf).
Duration: Function runs for 24-65 hours depending on quantity.
Automatic switch-off: Returns to normal temperature setting automatically.
Manual deactivation: Press SuperFrost button again to cancel.

WARNING! Do not activate SuperFrost for extended periods unnecessarily as it increases energy consumption.

Energy Saving Tips

Ensure door seals are clean and tight. Defrost when ice buildup exceeds 5mm. Set temperature to -18°C, not colder. Allow hot food to cool before freezing. Keep freezer well-stocked (uses less energy than empty). Position away from heat sources.

Care & Cleaning

Unplug before cleaning. Remove all food. Use mild detergent and warm water. Dry thoroughly. Clean door seals carefully. Do not use abrasive cleaners or sharp objects.

Defrosting: Automatic defrosting; manual defrost only if ice exceeds 5mm. Place towels to collect water.

CAUTION! Never use steam cleaners, electrical appliances, or sharp tools to remove ice.

Regulatory Information

CE marked. Complies with EU directives for electrical safety and electromagnetic compatibility. Manufactured according to ISO 9001. For EU: Disposal according to WEEE directive. Contains flammable refrigerant (R600a) and insulating foam. For service, contact authorized Liebherr service center. Visit www.liebherr.com for support and manuals.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Freezer not cooling	Power issue, thermostat setting	Check power connection, ensure thermostat not set to "0", wait 24 hours after first start.
Temperature too high	Door not sealed, frequent opening	Check door seal, clean if dirty, reduce door openings, ensure not overloaded.
Excessive frost/ice	Door seal damaged, hot food added	Check and replace seal if necessary, let food cool before freezing, defrost if ice >5mm.
Unusual noises	Appliance not level, parts touching	Level the appliance, ensure nothing is touching back or sides, check for loose parts.
Alarm sounds	Door open, power interruption	Close door properly, reset alarm button, check if power was interrupted.
Display not working	Power issue, child lock active	Check power supply, deactivate child lock, contact service if persistent.

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

Service: Contact Liebherr service at +49 (0) 7351 41-0 or visit www.liebherr.com