Keep the sequence in order
A panel that remains lit while a programme stalls is different from an appliance that goes completely dark. Describe the order already observed: the setting selected, any normal initial action, the first change and the final display. Record warning characters exactly instead of translating them into a guessed failed part.
Mention changes beyond the machine
If a nearby tap also lost flow or other equipment lost power at the same time, include that information in your request. It can change the questions the service team needs to ask. Do not remove electrical covers, test internal wiring or repeatedly reset a tripping supply. Select the affected appliance using the buttons on this page and have the full St Mary Cray address and model ready for scope confirmation.