DId that last week. It is just dead. No red lights on or anyfink 
Strangely that's usually a good sign.
*How old is it? if over 5 years and not a Miele than replace, otherwise risk the repair route. No certainties though
* there's an olde wisdome with electronics engineers (which by profession is wot I was). When someone comes to you with a broken radio, music player, computer etc with that "can you repair it?" look you ask them does it make any noise at all. if they say "yes" you say "bin it", just way too difficult.