Oven displays E17 and the child lock cannot be activated or deactivated.

Safety first: Disconnect power if removing the control panel.

Steps to check:

• Attempt a full reset by turning off power at the breaker for 5–10 minutes, then restoring power.
• Clean the touch panel surface with a slightly damp cloth (no chemicals) to remove residues that may affect capacitive keys.
• If a specific key appears stuck or always active, inspect the touch control panel and ribbon cable for damage.
• Replace the UI control panel if the child lock function remains inoperative after reset and cleaning.

Warning: Do not spray liquids directly onto the control panel; moisture can cause permanent damage.