Liebherr freezer GFT21S1HC Manual

The Liebherr GFT21S1HC is a high-efficiency upright freezer featuring NoFrost technology, electronic temperature control with digital display, SuperCool function, alarm system, child lock, reversible doors, adjustable shelves, and energy efficiency class A+++. 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. NoFrost Technology 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Electronic control panel with digital display, NoFrost system, adjustable glass shelves, door bins, freezer drawers, and reversible door hinges.

Feature	Description
NoFrost technology	Prevents ice buildup automatically
Electronic temperature control	Digital display with precise temperature setting
SuperCool function	Rapidly cools new items
Acoustic and visual alarm	Alerts when door left open or temperature rises
Child lock	Prevents accidental setting changes
Reversible doors	Can be hung left or right
Adjustable shelves	Glass shelves for flexible storage
Energy class A+++	High energy efficiency rating
Freezer capacity	204 liters total volume
Climate class	SN-T (10°C to 43°C)

Installation

Unpack and inspect contents. Position in suitable location.

Choose location: Place on level floor away from heat sources and direct sunlight.
Ventilation: Maintain minimum clearance (5cm sides, 10cm back, 30cm top).
Level appliance: Adjust front feet for stability.
Connect to power: Use dedicated grounded outlet (220-240V, 50Hz).
Door reversal: Follow instructions in manual to change door hinge side if needed.

WARNING! Do not tilt beyond 45° 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 detergent and water, then dry thoroughly.
Power on: Plug in and switch on. Display will illuminate.
Set temperature: Press temperature button to set desired freezer temperature (recommended -18°C).
SuperCool: Activate SuperCool function 2 hours before loading food for rapid cooling.
Load food: Place items evenly distributed, avoiding blocking air vents.

CAUTION! Do not place hot food directly into freezer. Allow to cool first.

Specifications

Model: GFT21S1HC
Type: Upright freezer
Total capacity: 204 liters
NoFrost system: Yes
Energy class: A+++
Annual energy consumption: 166 kWh/year
Climate class: SN-T (10°C to 43°C)
Noise level: 38 dB(A)
Refrigerant: R600a
Power supply: 220-240V, 50Hz
Dimensions (HxWxD): 144.5 x 60 x 64.5 cm

Controls and Settings

Electronic control panel located on front exterior.

Control buttons: Temperature adjustment, SuperCool, Alarm reset, Child lock.

Temperature setting: Range from -24°C to -16°C. Recommended setting: -18°C. SuperCool function: Rapid cooling for 6 hours then returns to set temperature. Alarm system: Visual (flashing display) and acoustic signal when door open >60 seconds or temperature rises above -12°C. Child lock: Press and hold temperature button for 3 seconds to activate/deactivate.

Storage Organization

Optimal organization ensures efficient cooling and easy access.

Top shelves: Ready-to-eat foods, ice cream, frozen desserts.
Middle shelves: Frozen vegetables, fruits, prepared meals.
Bottom drawers: Meat, fish, poultry (store in airtight containers).
Door bins: Smaller items, ice packs, frozen herbs.
Label and date: All items should be labeled with contents and freeze date.

Tip: Do not overload shelves; maintain air circulation around items.

Energy Saving Tips

Maximize efficiency and reduce energy consumption.

Location: Keep away from heat sources (oven, radiator, direct sunlight).
Temperature: Maintain -18°C; each degree lower increases energy use by 5%.
Door openings: Minimize frequency and duration of door openings.
Defrosting: NoFrost eliminates manual defrosting but ensure door seals are clean.
Full load: Keep reasonably full for optimal efficiency (but not overcrowded).
Check seals: Ensure door gaskets are clean and sealing properly.

WARNING! Do not block ventilation openings at rear of appliance.

NoFrost Technology

Automatic defrosting system prevents ice buildup.

How it works: Cold air circulates evenly throughout cabinet. Moisture is collected and evaporated automatically. Benefits: No manual defrosting required. Consistent temperature throughout. Better food preservation. Maintenance: Ensure air vents inside cabinet are not blocked by food items.

Care & Cleaning

Unplug before cleaning. Use mild detergent and water only.

Exterior: Clean with soft damp cloth. Do not use abrasive cleaners.
Interior: Remove all food. Clean shelves and drawers with mild soap solution.
Door seals: Wipe clean to ensure proper sealing.
Condenser: Vacuum dust from rear condenser coil annually.
Defrost drain: NoFrost system eliminates need for drain cleaning.

CAUTION! Never use sharp objects to remove ice. Never use chemical cleaners inside freezer.

Regulatory Information

CE marked. Complies with EU directives for electrical equipment. Contains refrigerant R600a (flammable). Disposal: At end of life, dispose according to local regulations. Do not dispose with household waste. Remove doors to prevent child entrapment. For support, visit www.liebherr.com or contact local authorized service center.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Freezer not cooling	Power supply/thermostat	Check power cord is plugged in; ensure temperature setting is correct.
Alarm sounds	Door open/temperature rise	Close door properly; check if large amount of warm food added recently.
Excessive frost	Door seal/frequent opening	Check door seals clean and intact; reduce door opening frequency.
Unusual noises	Leveling/items touching	Ensure appliance is level; check no items touching interior walls.
Display not working	Power/child lock	Check power supply; deactivate child lock if activated.

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

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