Enquiry preparation
Oven: agree the proposed work before choosing components
For a oven enquiry: Ask what labour, parts and further attendance would involve. Website guidance cannot establish that a particular part is needed, available or included in a final charge.
We agree suitable work and arrangements for your actual appliance.

For the appliance you actually own
The cavity, cooking mode and temperature belong together in an oven enquiry. Lights, the clock or a fan may still respond when one heating function does not. Describe the affected mode without assuming the whole oven has failed.
The purpose of this detail
The oven reference, fitting and observation allow a more specific discussion. They do not establish a failed part or guarantee a repair.
What still needs agreement
Confirm suitable work, proposed charges and access with the team. An enquiry notebook is preparation, not a reserved visit.