Pyrolytic self-cleaning cycle will not start or aborts with an error.

Safety first: Ensure the oven is cool and disconnected from mains before inspection. Pyrolytic cycles reach very high temperatures.

• Verify door lock operation: Start a pyrolytic cycle and listen for the lock motor. If the door does not lock, inspect the door lock assembly and microswitches as described in the door lock fault section.
• Check temperature sensor: A faulty NTC sensor can prevent the control from allowing high-temperature operation. Test and replace the sensor if out of specification.
• Inspect pyrolytic heater: Some Miele ovens use dedicated high-power elements for pyrolytic cleaning. Access the elements (often top and rear) and test for continuity. Replace any open elements.
• Overheat limiter: If the thermal limiter has tripped, it may need replacement. Locate the limiter on the top of the cavity or rear panel and test for continuity.

Due to the extreme temperatures involved, if multiple components are implicated or wiring is heat-damaged, professional service is strongly recommended.