Oven shows F15 and may not enter or exit pyrolytic self-clean mode.

Safety first: Ensure the oven is completely cool and isolated from mains before inspection.

Step-by-step checks:

• 1. Verify door lock: Confirm that the door lock engages and disengages properly when starting or ending a pyrolytic cycle. If not, see door lock fault procedures (F14).
• 2. Check pyrolytic sensor: Locate the high-temperature sensor used during self-clean (often separate from the main NTC). Test its resistance at room temperature and compare with specifications.
• 3. Inspect overheat thermostat: Some models have a resettable thermostat. Check for a small red reset button on the thermostat body and press it if popped.
• 4. Examine wiring: Inspect all wiring around the top and rear of the cavity for heat damage from previous pyro cycles.
• 5. Replace faulty parts: Fit a new pyrolytic temperature sensor or overheat thermostat if defective. If all sensors and locks are OK, the main control board may need replacement.