Fan of the automatic system lasted for cooking and closing system

With this closed system is unmatched by any system has screw or serving as a sick and there toujour has a vapor jet on a sneaky side after some time. Moreover the timer system that activates automatically when pressure is a real good one is no longer fun to watch the whisper of the valve before starting the stopwatch. The casserole sings when she sings then starts counting when the time is past. After several years I changed the battery in the timer without problem