Did you switch it off at the wall recently? Mine stopped working and it has something to do with a timer. I think it won't turn on unless you tell it how long to turn on FOR. the helpful button is the one like a steaming casserole that's second from the left. Try pressing that with + to set a time, try pressing it with STOP and see if that disables this stupid annoying feature. If you can find a link to the instruction manual as a pdf, please link it here.
Mike, July 2009