Enquiry preparation
Oven: make a short sequence of events
For a oven enquiry: Describe selection, operation and outcome in that order. Add anything that still responds normally, keeping your observation separate from a suggested failed component.
We agree suitable work and arrangements for your actual appliance.
For the appliance you actually own
Record the cavity, temperature setting and mode that was in use. A lit display or running fan can coexist with a heating problem on a particular function.
How this supports the discussion
The oven reference, fitting and observation allow a more specific discussion. They do not establish a failed part or guarantee a repair.
Confirm the proposed attendance
Confirm suitable work, proposed charges and access with the team. An enquiry notebook is preparation, not a reserved visit.