Content status: Verified
Freezer-compartment air sensor fault.
Model compatibility: Liebherr display alerts can vary across series and model years, so BT031 may mean something different on another appliance or generation. Confirm it against your model documentation and record the full model number before acting.
What this code means
Freezer-compartment air sensor fault.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Frequently asked questions
Freezer-compartment air sensor fault.
BT031 is catalogued here for Modern freezer / fridge-freezer. Always confirm the meaning against your exact model documentation before acting.
Book independent diagnosis if BT031 returns after basic safe checks, if temperatures drift, or if you are unsure whether the alert is model-specific. Do not open sealed refrigeration or control assemblies yourself.
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