Child lock symbol is displayed, controls do not respond, and this may be interpreted as an error.

Safety first: No internal work is required unless keys are physically stuck.

• Deactivate child lock: On most Etna ovens, press and hold the key symbol or a specific button combination (e.g., '+' and '-' together) for several seconds to toggle the child lock. Refer to the user manual for the exact sequence.
• Reset power: If the lock will not clear, disconnect power for 1–2 minutes, then restore and try the unlock sequence again.
• Check for stuck buttons: If a physical button is jammed, remove the control panel and inspect the button mechanism. Clean or replace the button PCB if necessary.