Wine cooler not cooling at all; interior is at room temperature, but lights and display work.

Safety first: Unplug the appliance before removing panels. Sealed-system work involves refrigerant and must be done by a certified technician.

• 1. Listen for compressor and fans:
  • With the unit plugged in, listen at the back for compressor and fan operation.
  • If both are silent, check for error codes and verify the unit is not in demo mode (refer to user manual).
• 2. Check temperature after several hours:
  • If the compressor runs but the cabinet never cools, suspect a sealed-system issue (leak or blockage).
• 3. Inspect for frost pattern:
  • Remove the interior rear panel and look at the evaporator.
  • No frost at all or only a small patch indicates low refrigerant or blockage.
• 4. User-level actions:
  • Ensure proper ventilation and that the door seals properly.
  • Power cycle the unit and verify settings are correct.
• 5. Call a professional: If the compressor runs but there is no cooling, or if you suspect a refrigerant leak, contact a Miele-authorized refrigeration technician. Do not attempt to open the sealed system yourself.