TL;DR: SuperFrost temporarily lowers the freezer temperature so fresh food freezes quickly, forming small ice crystals that preserve texture and nutrients. Activate it a few hours before adding a large fresh load; it switches off automatically.
TL;DR: NoFrost freezers auto-defrost, so frost build-up usually means a door-seal leak, a frequent door opening, or a defrost fault. To clear it, empty the freezer, switch it off, let ice melt naturally, dry it, and restart.
TL;DR: Check the setting and SuperFrost, confirm the door seals and that vents are clear, look for excess frost, and note any F3/F4 sensor code or AL02 high-temp alarm. Sealed-system and sensor faults need a certified technician.
The compressor on a Liebherr freezer runs constantly without cycling off.
Sensor / temperature-monitoring fault on a Liebherr freezer.
SuperFrost rapid-freeze stays on instead of switching off on a Liebherr freezer.
A Liebherr freezer door no longer seals properly.
A Liebherr freezer alarm keeps sounding or will not clear.
A Liebherr freezer is louder than normal or makes unusual noise.
The NoFrost auto-defrost system is not keeping a Liebherr freezer frost-free.