Siemens Ovens are designed to be clear and simple to use. Siemens electronic sensor control means that temperatures in a Siemens Oven are almost scientifically accurate, ensuring perfection every time. When opening the oven door during cooking the Siemens oven sensor automatically cuts the hot air fan - preventing that hot air blast. The Oven light works independently, giving you the choice of use during cooking and cleaning. If cooking is a pleasure now the cleaning is too. Siemens recognise you want easy to clean ovens, which is why we've developed a range of activeKlean cleaning system for our ovens. activeKlean, liners are 4 times more efficient than standard catalytic liners. They will provide you with an excellent cleaning performance time after time. Oven door and door surround need to be cleaned manually.