Oven display shows E6 and unit will not start; often after a power surge or outage.

Safety first: Disconnect the oven from mains power for at least 5–10 minutes to allow internal capacitors to discharge.

• Power reset: After waiting, reconnect power and attempt to start the oven. Sometimes E6 clears after a full power cycle.
• Check supply voltage: Ensure the wall outlet provides stable voltage within the range specified for your Clatronic oven (usually 220–240 V AC). Avoid using long, undersized extension cords.
• Inspect control board: Remove the top or front cover to access the control PCB. Look for obvious damage such as burnt components, bulging capacitors, or cracked solder joints.
• Surge damage: If E6 appeared immediately after a lightning storm or power surge, the microcontroller or EEPROM is likely damaged. These components are not user-serviceable.
• Replace control module: The standard remedy is to replace the entire electronic control board with the correct Clatronic spare part. Transfer all connectors carefully, matching positions and colors.
• Professional service: Because firmware programming and SMD component replacement require specialized tools, contact an authorized service center if board replacement is not straightforward.