Freezer section or NoFrost compartment displays error code F2; freezer temperature may be too warm or unstable.

Safety first: Unplug the refrigerator before removing any freezer panels. Beware of sharp evaporator fins.

Step-by-step:

• Access the sensor: Remove freezer drawers and the rear inner panel (NoFrost cover) to expose the evaporator area. The freezer NTC is usually clipped to the evaporator or mounted on the rear wall.
• Inspect wiring: Look for crushed or cut wires, especially where they pass through foam or near moving drawers.
• Check for ice: If the sensor is encased in ice, carefully defrost the area using warm air (hair dryer on low, kept at a safe distance). Do not chip ice with sharp tools.
• Test the sensor: Disconnect the sensor and measure resistance with a multimeter. Compare to expected NTC values; open or short readings indicate failure.
• Replace sensor: Install a new Liebherr freezer NTC sensor, ensuring good contact with the evaporator or mounting point. Secure the cable away from sharp edges.
• Reassemble and test: Refit the rear panel and drawers, restore power, and monitor freezer temperature and alarms for 24 hours.