Interior lights and display work but compressor and fans do not run; E06 displayed indicating main control fault.

Safety: Disconnect mains power before removing any control covers. Electronic boards can carry dangerous voltages even after unplugging; wait several minutes for capacitors to discharge.

Steps:

• 1. Confirm symptoms: Verify that interior lights and display function but there is no compressor or fan operation, and E06 is present.
• 2. Power reset: Unplug the unit for 10–15 minutes. Restore power. If E06 appears immediately, the board is likely faulty.
• 3. Access the main control board: On many Gaggenau refrigerators, the main PCB is located in a compartment at the top or rear. Remove the cover screws and gently open the housing.
• 4. Visual inspection: Look for burnt components, bulging capacitors, or darkened areas on the PCB. Check for loose connectors or signs of moisture ingress.
• 5. Reseat connectors: With power off, unplug and replug each harness to ensure good contact. Do not bend pins.
• 6. Replace the control board: If visible damage is present or E06 persists after reseating connectors, replace the main control board with the exact part number specified for your Gaggenau model. Transfer any jumper settings or wiring positions exactly as on the original.

Note: If you are not experienced with electronics, have an authorized technician perform this repair to avoid damage or safety hazards.