Enquiry preparation
Washer-dryer: keep a note of the different occasions
For a washer-dryer enquiry: Retain settings and outcomes from ordinary use already observed. An intermittent issue can be difficult to describe from memory. Do not run further demonstrations of smoke, tripping or dangerous leakage.
We agree suitable work and arrangements for your actual appliance.

For the appliance you actually own
Explain whether washing and emptying finished, then describe the drying selection and result. A combined appliance can wash normally while leaving laundry damp; keep the two observations separate.
Why this belongs in the enquiry
The washer-dryer reference, fitting and observation allow a more specific discussion. They do not establish a failed part or guarantee a repair.
Before arranging a visit
Confirm suitable work, proposed charges and access with the team. An enquiry notebook is preparation, not a reserved visit.