Hansa oven displays E13 and the door will not unlock after a self-clean or high-temperature cycle.

Safety first: Wait until the oven is completely cool before attempting to unlock the door. Disconnect power.

• Allow extra cooling time: Sometimes the lock remains engaged until internal temperatures drop below a threshold. Wait 30–60 minutes longer and then restore power to see if the lock releases.
• Manual release: Use the emergency release method described in the user manual (often accessible from the top or through the front panel) to open the door.
• Inspect lock assembly: Access the lock from the top/front. Check for heat damage, warping, or melted plastic. Replace the lock assembly if damaged.
• Test lock switch: Use a multimeter to verify that the lock position switch changes state when the lock moves. Replace if faulty.

When to call a technician: If the lock mechanism is severely heat-damaged or if the control board is not driving the lock correctly, professional repair is required.