Use accessible information
Look for the external data label or your purchase documentation. Do not remove the casing or reach around exposed connections to read an internal label.
Capture the right details
Record the model name, product number and serial number where available. The colour or approximate dimensions are not a reliable substitute.
If the label is unreadable
Check the operating booklet or receipt and explain that the identification is incomplete when you call. Avoid ordering a replacement part based only on a similar photograph.
Keep the information private
Store your appliance details for service enquiries. Avoid publishing serial numbers or personal contact information in public comments.