Morphy Richards oven shows E17 and the self-clean or pyrolytic cycle cannot be started.

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

Steps:

• Check door lock: Attempt to start self-clean and listen for the lock motor. If it does not operate, inspect the door lock assembly and wiring.
• Verify door switch: The control must detect a closed door. Test the door switch for correct operation.
• Check self-clean sensor: Some models use a separate high-temperature sensor. Test its resistance and wiring according to the service manual.
• Control logic: If all hardware checks out, the electronic control board may not be recognising conditions and may require replacement.

Warning: Do not attempt to bypass safety interlocks for self-clean; this can cause severe damage or fire.