There is a reset button on this model. If you switch off the electical supply and useing a small beamed torch look through the vent slots above the grill door just under the clock you can just see two wires on a sensor and in the centre of this is a red button. this is the reset and can be pushed down to reset with a long thin scew driver or knitting needle. When this is done reconnect the electrics and the clock, grill, and oven should work provided that it was the problem on your cooker.
paul
January 2012