A few days after the installation normally the contact switch for the interior light did not work. Determined I have this because in the morning food sampling everything was in the top compartment Melted and ca, 28 had degrees. Very annoying, since the goods were spoiled. So lamp expanded u. Bosch service call for repair appointment. Two weeks later, was the complete lighting unit ink. Board replaced. Another 2 weeks later, the same problem again. This time, the raclette cheese was melted completely and other food spoiled. Again Bosch service agreement. Another 2 weeks later came the same technician, said the problem is known, but there were currently no solution. He then has the contacts and adjusted. Promised that Bosch announces itself as soon as the problem is solved. For about 2weeks of contact switch works as it should.