Oven display shows a lowercase d and heating is disabled.

Safety first: No electrical work is required for this procedure.

• Enter settings menu: Press and hold the appropriate function and temperature keys together (varies by model) to enter the configuration menu. Refer to the Gorenje user manual.
• Disable demo mode: Navigate to the DEMO or d setting and change it to OFF or 0.
• Confirm and exit: Save the setting and exit the menu. The d symbol should disappear and heating functions should be restored.
• Power reset: If you cannot exit demo mode, disconnect power for a few minutes and try again.