Hi Steve,
Yes, it sounds like your fan oven element has gone. They are accessed from inside the oven. Power off first, then remove the rear cover from inside the cooker. This will reveal the fan and element. The element is normally held in place by 2/3 screws. The 2 wires will connect to the element and sometimes an earth wire. Just note their positions and remove. A replacement element can be purchased from us:
www.ukapplianceparts.com
Any Q's let me know.
Lee
December 2006