E8 error appears and the cooker may shut down unexpectedly during operation.

Safety first: Always unplug the cooker before inspecting the power cord or base.

• Check outlet: Plug the multicooker into a different, known-good wall outlet without extension cords or power strips. Avoid using generators or unstable power sources.
• Inspect power cord: Examine the Oursson power cord for cuts, kinks, or burn marks. Ensure the plug fits firmly in the socket and the cord fits securely into the cooker (if detachable).
• Remove overloads: Do not share the outlet with high-power appliances (kettle, microwave) while testing. Voltage dips can trigger E8.
• Internal inspection (advanced): With the unit unplugged and bottom cover removed, inspect the PCB near the power input for burnt components, cracked solder joints, or bulging capacitors. If any are found, the board should be replaced.
• Service recommendation: Because the power supply is directly connected to mains, repairs should be performed only by qualified technicians. If E8 persists, discontinue use and contact service.