Bob, If you're still looking at this forum:
a) Is that the earthing at the cooker end (i.e. not the plug)?
b) Do you know how to remove the control panel? - I took off all the knobs and retaining screws but couldn't release the trim bar along the top, it looks like it might just snap out but as it's not my cooker I was reluctant to force it.
Howard
January 2007