Enquiry preparation
Cooker: retain the differences you have already noticed
For a cooker enquiry: Settings and outcomes from ordinary use can help describe variation. Keep the observations as a short note. Do not deliberately repeat burning, smoke, tripping, leakage near electrics or uncontrolled movement.
We agree suitable work and arrangements for your actual appliance.

For the appliance you actually own
Keep the hob, grill and oven observations distinct. Give the fuel arrangement and the actual cavity or burner involved. Suitable gas-related work requires specific agreement; this site does not offer gas conversions or AGA repairs.
The purpose of this detail
The cooker 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.