Liebherr freezer FNd 4655-20 Manual

The Liebherr FNd 4655-20 is a high-performance upright freezer with NoFrost technology, offering a total net capacity of 204 liters. It features electronic temperature control with a digital display, SuperCool function, acoustic and optical door alarm, child lock, and energy efficiency class F. 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. NoFrost Technology 8. Energy Saving Tips 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Upright freezer cabinet, electronic control panel, adjustable shelves, door compartments, NoFrost evaporator, and ventilation system.

FeatureDescription
NoFrost technologyPrevents ice build-up automatically; no manual defrosting required
Electronic temperature controlDigital display with precise temperature setting from -14°F to 8°F (-26°C to -14°C)
SuperCool functionRapidly lowers temperature for new food loads
Acoustic/optical alarmAlerts if door is left open or temperature rises critically
Child lockLocks control panel to prevent unintended changes
Adjustable shelvesFlexible storage configuration for various item sizes
Door compartmentsStorage for smaller items and packages
Energy efficiency classClass F (according to EU regulations)
Reversible doorsDoor can be hinged on left or right side
Climate classSN-T (designed for ambient temperatures 50°F to 109°F / 10°C to 43°C)

Installation

Unpack and inspect contents. Place on level, stable floor.

  1. Positioning: Allow minimum clearance (2 inches at back, 1 inch at sides) for ventilation.
  2. Leveling: Adjust front feet to ensure unit is perfectly level.
  3. Electrical connection: Plug into grounded 120V AC, 60Hz outlet. Do not use extension cords.
  4. Door reversal (optional): Follow instructions in separate door reversal leaflet if needed.
  5. Initial rest: Let unit stand upright for at least 4 hours before first power-on.

WARNING! Unit is heavy; use two people for moving. Ensure proper ventilation to prevent overheating.

First-Time Setup

After installation rest period, power on the freezer.

  1. Initial cooling: Press POWER button. Unit will start cooling to default setting of 0°F (-18°C).
  2. Set temperature: Use + and - buttons to adjust to desired temperature. Recommended: 0°F (-18°C).
  3. Activate SuperCool: Press SUPERCOOL button before loading large amounts of unfrozen food.
  4. Set alarm: Door alarm is enabled by default. Test by leaving door open for >2 minutes.
  5. Enable child lock: Press and hold LOCK button for 3 seconds to lock control panel.

CAUTION! Do not overload freezer during initial cooling. Allow 24 hours to reach stable temperature.

Specifications

Controls and Settings

Control panel located on front upper section.

Buttons: POWER (On/Off), TEMPERATURE +/-, SUPERCOOL, ALARM ON/OFF, LOCK.

Display icons: Temperature reading, SuperCool active, Alarm active, Door open warning, Child lock active.

Temperature range: -14°F to 8°F (-26°C to -14°C). SuperCool: Activates for 24 hours then returns to set temperature. Alarm: Sounds if door open >2 minutes or temperature >14°F (-10°C). Child lock: Disables all buttons except POWER when active.

Storage Organization

Optimal organization ensures efficient freezing and easy access.

  1. Shelves: Adjust height to accommodate different item sizes. Heavier items on lower shelves.
  2. Door compartments: Store smaller packages, frozen vegetables, ice packs.
  3. Freezing fresh food: Place new items against rear wall for fastest freezing.
  4. Package labeling: Label all packages with contents and date.
  5. Air circulation: Do not block air vents inside freezer compartment.

Tip: Maintain inventory list to minimize door opening time.

NoFrost Technology

Automatic defrosting system prevents ice accumulation.

  1. How it works: Fan circulates cold air while hidden heating elements periodically melt frost on evaporator.
  2. Benefits: No manual defrosting needed; consistent temperature; better energy efficiency.
  3. Maintenance: Ensure air vents are not blocked. Clean condenser coil annually.
  4. Water drainage: Melted frost evaporates automatically; no drip tray to empty.

NOTE: Slight humming during defrost cycle is normal.

Energy Saving Tips

Maximize efficiency and reduce operating costs.

Care & Cleaning

Unplug before cleaning. Never use sharp tools, abrasive cleaners, or hot water.

  1. Interior: Clean with solution of warm water and baking soda (2 tbsp per quart). Rinse with clean water.
  2. Exterior: Wipe with soft damp cloth. Use mild detergent if needed.
  3. Door seals: Clean with water only; check for damage.
  4. Condenser coil: Vacuum gently at rear of unit (unplug first).
  5. Defrosting: Not required with NoFrost system.

CAUTION! Never use electrical appliances inside freezer for cleaning. Do not scrape ice (none should form).

Regulatory Information

This appliance complies with EU Directive 2012/19/EU on waste electrical equipment (WEEE). Contains refrigerant R600a and insulation cyclopentane, both flammable. Dispose according to local regulations. For EU: Do not dispose with household waste. Copyright © Liebherr-International AG. For support, visit www.liebherr.com or contact local Liebherr service center.

Troubleshooting

SymptomPossible CauseCorrective Action
Freezer not coolingPower issue/doorsCheck power cord is plugged in; ensure door is fully closed.
Temperature too highOverloaded/ventilationDo not overload; ensure air circulation; check door seal.
Alarm soundsDoor open/temp riseClose door properly; check if large food load recently added.
Unusual noiseLeveling/fanEnsure unit is level; check for items touching fan housing.
Condensation on exteriorHumidity/sealNormal in humid conditions; check door seal if excessive.
Display not workingPower/child lockCheck power supply; disable child lock to access controls.

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

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

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