Freezer runs continuously but does not reach the set temperature; interior only slightly cool.

Safety first: Do not attempt sealed system repairs yourself.

Steps:

• Check ambient conditions: Ensure the freezer is not installed in a very hot or unventilated space exceeding Liebherr's climate class rating.
• Condenser and ventilation: Clean the condenser and ensure adequate airflow around the appliance.
• Door gasket check: Close a sheet of paper in the door at various points. If it pulls out easily, the gasket may be leaking cold air.

Remedy: If the compressor runs almost constantly and the unit never reaches target temperature despite good ventilation and seals, a sealed system issue is likely. Contact an authorized Liebherr service center for leak detection and repair.