Brandt oven displays F08 and will not start pyrolytic self-cleaning.

Safety first: Ensure the oven is cool before working on the lock or thermostats. Disconnect power.

Steps:

• Check door lock: Confirm that the door lock engages fully when starting pyrolysis. If it does not move, inspect the lock motor and linkage.
• Inspect thermostats: Some models have manual-reset safety thermostats on the top or rear. Press the small reset button if present.
• Verify cavity sensor: Test the pyrolytic temperature sensor (if separate from normal sensor) for correct resistance.
• Control board: If all safety components test good, the control board may be misreading signals and require replacement.