CK many thanks for your help.
I tapped all of the relays more so on the one closest to the heating element wires.
switched back on and after opening and closing the door the element doesnt come on now so looking good.
just cycling a fan assisted mode to check the element goes out again afterwards but may end up replacing the relay if i can get a spare.
Surprised there isnt a fail safe for things like this, even when the oven was off it displayed F05 yet the heating element was bright red and fully on.
David Johnson
December 2010