Etna induction cooktop controls are unresponsive; display is on but no changes can be made.

Safety: Ensure all zones are off before troubleshooting controls.

• Check for lock: Look for a key or lock symbol. If present, disable the lock by holding the lock key for several seconds.
• Clean and dry: Wipe the control area with a dry cloth to remove moisture or residue.
• Power reset: Turn off the breaker for 1–2 minutes, then restore power and test the controls.
• Panel test: If only certain keys fail, the touch panel may be defective and should be replaced.