Practical preparation
Washer-dryer: when the fault comes and goes.
For your washer-dryer enquiry, record the setting, stage and starting conditions when the change appears. A brief description of several ordinary occurrences can be more useful than a single guessed cause.
Suitable work, charges and Monday–Thursday visits confirmed individually.

Apply this to your washer-dryer
Separate the washing result from the drying result. State whether the drum still contains water and which combined or drying-only programme was selected.
Keep the product and request together
The label, fitting and observed change describe the specific product. Send only information relevant to the enquiry; an old front-panel range name alone can be incomplete.
Know what this preparation does
Preparing notes helps the team understand the request. It does not reserve an appointment, confirm a particular part or authorise charges. Work and visits are agreed individually.