Refrigerator displays F07 or similar alarm, interior light may flicker, unit may not start

Safety first: Disconnect mains power and wait several minutes before touching any electronic components.

Steps:

• 1. Check wall outlet: Verify that the outlet provides stable voltage using another appliance. Avoid using multi-plug adapters or long extension cords.
• 2. Inspect power cord: Examine the V-ZUG refrigerator power cord for cuts, kinks, or burn marks. Replace if damaged.
• 3. Access main control board: Remove the rear lower cover to expose the main PCB (usually in a plastic housing).
• 4. Visual inspection: Look for burnt components, swollen capacitors, or darkened areas on the board. Check that all connectors are fully seated.
• 5. Reseat connectors: Unplug and reconnect the main harnesses one at a time to ensure good contact.
• 6. Power reset: After reassembly, plug in and see if F07 clears. If the error returns immediately, the board is likely defective.
• 7. Replace main control board: Order the exact V-ZUG main PCB for your model. Transfer any configuration jumpers or wiring exactly as on the original board.

Warning: Do not attempt component-level repair on the PCB unless you are qualified; incorrect work can create fire and shock hazards.