Sounds like the element has blown. I have just replaced mine.
MAKE SURE YOU TURN THE ELECTRIC OF AT THE MAINS
1) Remove the 4 screws on the back panel inside the oven, the move the panel out the way
2) Remove the screw at the top of the element, carefully pull of the wires from the element, they are spade connections. DONT LET THE WIRES FALL INTO THE HOLES
3) Connect the spade connectors onto the new element making sure they are securely fitted.
4) Offer up the element to were it is meant to go and replace the screw at the top.
5) Put the back cover on securing it with the 4 screws that you removed earlier.
I got my repacement element from
www.qualitycookerspares.co.uk
Very fast service.
Mark Rose, March 2009