Liebherr freezer FNa 6635 Plus Manual

The Liebherr FNa 6635 Plus is a premium freestanding freezer offering high energy efficiency (A+++), a generous net capacity of 255 liters, NoFrost technology to prevent ice buildup, SuperCool function for rapid cooling, temperature alarm, reversible doors, adjustable feet, and a 4-star freezing compartment. It features electronic temperature control, interior LED lighting, and a child lock. 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. Energy Saving Tips 8. Care & Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Freezer cabinet, electronic control panel, adjustable glass shelves, door bins, freezer drawers, NoFrost evaporator, and reversible door hinges.

Feature	Description
NoFrost Technology	Prevents ice buildup; no manual defrosting required
SuperCool Function	Rapidly lowers temperature for new food loads
Electronic Control Panel	Digital temperature display and settings
Temperature Alarm	Audible alert if temperature rises above safe level
Reversible Doors	Door can be hinged on left or right side
Adjustable Feet	For leveling the appliance on uneven floors
Child Lock	Locks control panel to prevent unintended changes
Interior LED Lighting	Energy-efficient illumination
4-Star Freezer Compartment	Suitable for long-term storage of frozen food
Energy Class A+++	Highest energy efficiency rating

Installation

Unpack and inspect contents. Place in a suitable location with adequate ventilation.

Positioning: Allow at least 5 cm clearance at back and sides for air circulation.
Leveling: Adjust the feet using a wrench to ensure the appliance is level.
Door Reversal (if needed): Follow instructions in separate door reversal leaflet.
Power Connection: Plug into a grounded 220-240V, 50Hz AC outlet.

WARNING! The freezer is heavy; use two people for moving and positioning. Ensure it is not placed near heat sources.

First-Time Setup

After installation, wait 2 hours before switching on for the first time.

Initial Power On: Plug in the appliance. The control panel will illuminate.
Set Temperature: Press the temperature button to set desired level (recommended -18°C).
Activate SuperCool: Press SuperCool button for 6-8 hours before loading food to rapidly cool the interior.
Load Food: Place food items, ensuring proper air circulation around packages.

CAUTION! Do not load the freezer with warm food. Allow cooked food to cool to room temperature first.

Specifications

Model: FNa 6635 Plus
Energy Class: A+++
Annual Energy Consumption: Approximately 166 kWh
Net Capacity: 255 liters
Freezing Capacity: 12 kg/24h
Climate Class: SN-T (10°C to 43°C)
Noise Level: 38 dB(A)
Refrigerant: R600a (isobutane)
Power Supply: 220-240V, 50Hz
Dimensions (HxWxD): 177 x 60 x 64 cm

Controls and Settings

Access settings via the electronic control panel on the front.

Control Panel: Power On/Off, Temperature Setting (+/-), SuperCool Button, Alarm Reset, Child Lock.

Temperature Setting: Range from -14°C to -26°C. Recommended setting is -18°C. SuperCool: Activates for 24 hours or until manually deactivated. Alarm: Sounds if internal temperature rises above -12°C. Child Lock: Press and hold Lock button for 3 seconds to enable/disable.

Storage Organization

Use drawers, shelves, and door bins efficiently for optimal freezing.

Top Drawers: Store frequently used items like ice cream, frozen vegetables.
Middle/Lower Drawers: Store meat, fish, and prepared meals for long-term storage.
Door Bins: Store smaller items, ice packs, or frozen herbs.
Labeling: Label packages with contents and date of freezing.

Tip: Do not overfill drawers. Allow cold air to circulate between packages.

Energy Saving Tips

Maximize efficiency and reduce running costs.

Location: Keep away from ovens, radiators, and direct sunlight.
Door Seals: Ensure seals are clean and intact to prevent cold air loss.
Loading: Avoid opening the door frequently or for prolonged periods.
Defrosting: NoFrost system eliminates manual defrosting, maintaining efficiency.
Temperature Setting: -18°C is sufficient for most frozen foods; colder settings use more energy.

WARNING! Blocking ventilation grills will cause the compressor to overwork and increase energy consumption.

Care & Cleaning

Unplug before cleaning. Use mild detergent and warm water. Do not use abrasive cleaners.

Interior: Wipe shelves, drawers, and interior walls with a damp cloth.
Exterior: Clean the door and control panel with a soft cloth.
Door Seals: Clean gently to remove food residue.
Condenser Coil: Vacuum the rear grille annually to remove dust.

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

Regulatory Information

This appliance complies with EU Directives 2014/35/EU (LVD), 2014/30/EU (EMC), and 2017/1369/EU (Energy Labeling). The refrigerant (R600a) is flammable but contained within a sealed system. For disposal, contact authorized waste management services. Copyright © Liebherr-International AG. For support, visit www.liebherr.com or contact your local Liebherr service center.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Appliance not cooling	Power supply/plug	Ensure plug is connected; check household fuse/circuit breaker.
Temperature alarm sounds	Door ajar/high ambient temp	Ensure door is closed properly; reduce room temperature if possible.
Unusual noise	Appliance not level/items touching fan	Level the appliance; ensure no food packages obstruct the interior fan.
Excessive frost in compartment	Door seal damaged/frequent opening	Check and clean door seal; avoid holding door open for long periods.
Control panel not responding	Child lock active/power issue	Deactivate child lock; unplug for 1 minute and reconnect.

Reset: Unplug for 5 minutes to reset the electronic control system.

Service: Contact authorized Liebherr service. Do not attempt repairs yourself.