This is the first time we have found a problem with casseroles SEB. Indeed, after having used less than 20 times since our purchase January 5th, 2012 the timer does not work (display. The battery is good (3V) and after testing another new battery. Additionally Amazon does not indicate the procedure to run the warranty. We were able to replace the timer a free service of SEB. Since we are very happy with this casserole.