Liebherr freezer GN 1923 Manual

The Liebherr GN 1923 is a high-quality commercial freezer designed for professional kitchen use, featuring robust stainless steel construction, precise electronic temperature control, efficient cooling system, interior LED lighting, and energy-saving technologies. Below are key sections covering safety, features, installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting to Power 7. Operation 8. Maintenance & Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Stainless steel exterior and interior, Electronic temperature controller, Interior LED lighting, Efficient compressor, Adjustable shelves, Door alarm, Castors for mobility.

FeatureDescription
Stainless Steel ConstructionDurable, hygienic, and corrosion-resistant
Electronic Temperature ControlPrecise digital setting and display
Interior LED LightingEnergy-efficient, bright interior illumination
Efficient CompressorLow energy consumption, reliable cooling
Adjustable ShelvesFlexible storage configuration
Door AlarmAudible alert if door is left open
CastorsFour swivel castors for easy mobility
Energy Saving ModeReduces power consumption during low use
Fast Freeze FunctionRapidly lowers temperature for new loads
Temperature DisplayShows current interior temperature

Installation

Unpack and inspect contents. Ensure location meets requirements.

  1. Choose location: Place on level, solid floor with adequate ventilation.
  2. Remove packaging: Take off all protective films and transit brackets.
  3. Adjust feet/castors: Ensure unit is stable and level.
  4. Clearance: Maintain minimum 10cm clearance at back and sides for airflow.
  5. Power connection: Plug into dedicated grounded outlet.

WARNING! Unit is heavy; use appropriate lifting equipment or multiple persons. Do not tilt beyond 45 degrees.

First-Time Setup

After installation, allow unit to settle for 2 hours before first use.

  1. Initial power on: Plug in and switch on at mains.
  2. Set temperature: Use control panel to set desired freezing temperature (recommended -18°C).
  3. Activate Fast Freeze: Press FAST FREEZE button for 24 hours to quickly stabilize temperature.
  4. Load products: After temperature is stable, load food items evenly.
  5. Configure alarm: Set door alarm delay time via control panel if needed.

CAUTION! Do not overload shelves. Allow air circulation around items.

Specifications

Controls and Settings

Control Panel located on front exterior.

Buttons/Functions: POWER On/Off, Temperature Up/Down, FAST FREEZE, ALARM Reset, ENERGY SAVING Mode.

Temperature Setting: Use Up/Down buttons to set between -10°C and -25°C. Display shows set temperature and actual temperature alternately. Fast Freeze: Activates maximum cooling for 24 hours then returns to set temperature. Alarm: Sounds if temperature rises above threshold or door is open >2 minutes. Energy Saving: Reduces compressor cycles during periods of low door opening.

Connecting to Power

Requires dedicated grounded power outlet.

  1. Ensure unit is switched off at control panel.
  2. Plug power cord into appropriate outlet (check voltage matches rating plate).
  3. Switch on at mains.
  4. Turn on unit using POWER button on control panel.

Tip: Use a surge protector for added safety. Do not use extension cords.

Operation

Daily operation guidelines for optimal performance.

  1. Loading: Distribute items evenly across shelves. Do not block air vents.
  2. Door Opening: Minimize frequency and duration to maintain temperature.
  3. Temperature Monitoring: Regularly check display for correct temperature.
  4. Fast Freeze Use: Activate when adding large quantity of unfrozen items.
  5. Defrosting: Automatic defrost cycle; ensure drain hole is clear.
  6. Shelving Adjustment: Remove shelves by lifting front and pulling out.

WARNING! Never store liquids in open containers. Always use airtight packaging.

Maintenance & Cleaning

Regular maintenance ensures longevity and efficiency.

  1. Exterior Cleaning: Wipe stainless steel with damp cloth and mild detergent. Dry thoroughly.
  2. Interior Cleaning: Turn off and empty unit. Clean with solution of baking soda and water. Rinse and dry.
  3. Gasket Cleaning: Clean door seal with mild soapy water to maintain seal.
  4. Condenser Cleaning: Vacuum condenser fins at rear every 6 months (disconnect power first).
  5. Drain Hole: Check and clear defrost drain hole monthly.

CAUTION! Disconnect power before any cleaning or maintenance. Never use abrasive cleaners or steam.

Regulatory Information

CE Marked: Complies with European safety and EMC directives. Refrigerant: Contains R290 (Propane) - flammable. Installation and service must be performed by qualified personnel. Disposal: Comply with local WEEE regulations. Manufacturer: Liebherr-Hausgeräte GmbH, Memminger Straße 77-79, D-88416 Ochsenhausen. For support, visit www.liebherr.com or contact local authorized service center.

Troubleshooting

SymptomPossible CauseCorrective Action
Unit not coolingPower supply, door seal, thermostatCheck power connection; ensure door closes properly; verify thermostat setting.
Temperature too highOverloaded, frequent door opening, dirty condenserReduce load; minimize door openings; clean condenser.
Alarm soundingDoor ajar, power interruption, high temperatureClose door firmly; check power; allow unit to cool down.
Excessive frostFaulty door seal, high humidityCheck and clean door gasket; ensure proper sealing.
Unusual noiseUnit not level, fan obstruction, compressor issueLevel the unit; check for obstructions; contact service.
Water inside unitClogged drain hole, door left openClear drain hole; ensure door is properly closed.

Reset: Turn off at control panel and mains for 5 minutes, then restart.

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

Liebherr freezer GN 1923 Manual © - All Rights Reserved 2025