my grill and fan oven wont work compleatly dead other oven fine help f?

I was wondering if you had the grill and fan oven on at the same time? I currently have the same problem - for the 2nd time!The last time we changed a fuse (thermic cut-off oven...) at the back of the cooker and it worked perfectly. Until last week when we had something in the fan oven and then put something on the grill. Completely stopped working.We think we had done the same previously.

Sandra
May 2010