Display shows E8 and the unit may not cool; compressor may not start or may shut down quickly.

Safety: Disconnect power before removing the toe-kick grille or rear service panel. Components may be hot.

Corrective actions:

• 1. Check installation clearance: Verify that the wine cooler has the ventilation clearances specified by Gaggenau (front or rear venting depending on model). Ensure vents are not blocked by cabinetry or objects.
• 2. Clean condenser coils: Remove the front grille or rear panel to access the condenser. Use a soft brush and vacuum to remove dust and lint from the coils and surrounding area.
• 3. Inspect condenser fan: Confirm that the condenser fan spins freely and is not obstructed. With power restored briefly, verify that the fan runs when the compressor is on. Disconnect power again before further work.
• 4. Replace condenser fan motor if faulty: If the fan does not run or is noisy and slow, replace it with the correct Gaggenau motor, ensuring proper wiring and mounting.
• 5. Check condenser temperature sensor (if present): Some models use a sensor on the condenser or compressor. Test resistance and replace if out of specification.
• 6. Allow unit to cool: If the compressor has overheated, leave the unit off for 30–60 minutes before restarting.
• 7. Restore power and test: After cleaning and any part replacement, restore power and monitor for normal cooling and absence of E8.

Warning: Persistent high-pressure faults may indicate a sealed system problem (overcharge, restriction) that must be handled by a licensed refrigeration technician.