We have an AEG fridge/freezer in the Santo series from 2010. It was an expensive unit and is still fully function accept the light in the fridge doesn't switch off anymore so had to remove bulb as it's illuminated all the time. I think it's the door switch/sensor that has failed but can't seem to locate where it is. It's not the clicking type with a relay attached to it often visible within the door hinge area or above the door but hidden somewhere.