ROSIERES RDG342SFIN Notice D'instructions page 10

CUSTOMER ASSISTANCE SERVICE
If you cannot identify the cause of the operating anomaly: switch off the appliance (do not subject it
to rought treatment) and contact the Assistance Service.
PRODUCT SERIAL NUMBER. Where can I find it?
It is important you to inform the Assistance Service of your product code and its serial number
(a 16 character code which begins with the number 3); this can be found on the guarantee certificate
or on the data plate located on the appliance.
This will help to avoid wasted journerys to technicians, thereby (and most significantly) saving
the corresponding callout charges.