Our dishwashers are fitted with a self-diagnosis system, which in the rare case of a fault will help to report what the problem is. If the E09 or F09 error code appear on the appliance display we recommend that you do not try to resolve the issue on your own at home due to health and safety reasons. Please close the water tap and switch off the appliance. Book an appointment with one of our engineers who will be able to professionally rectify the problem.