Oven door will not lock for pyrolytic self-cleaning; error appears when starting cleaning cycle

Safety first: Disconnect power before working on the door lock. Do not force the door closed.

• Check for mechanical obstruction: Inspect the door latch and strike for food debris or misalignment. Clean and realign as needed.
• Access door lock assembly: Remove the top cover or front panel (depending on model) to reach the lock mechanism located near the top front of the oven.
• Inspect lock motor and linkage: Check that the lock arm moves freely by hand (with power off). Look for broken plastic parts or bent linkages.
• Test microswitches: Use a multimeter to verify that the lock position switches change state when the lock is engaged and disengaged. Replace the lock assembly if switches are faulty or integrated.
• Check wiring: Ensure the harness from the lock to the PCB is intact and firmly connected.
• Replace lock assembly: If the motor does not operate or the mechanism is damaged, install a new genuine Ariston door lock assembly. Reassemble and test a cleaning cycle to confirm proper locking.