Hi Iain
The elements on the back panel of my suk91 have gone five times in less than 18 months of minimal use. There are also fumes being given off during the odd periods when it has worked which may be due to heat affecting the seals or insulation. I am now trying to get an independent technicians report as I have concerns about the safety of the appliance. Will post results when I have them. Cold air seems to be drawn onto the back elements from around the edges of the back plate and blown out through the grills over the front of the elements in the middle of the oven, contrary to other fan assisted ovens so not sure if this has contributed to the problem.
When one element has blown it has normally been followed by a second failure within weeks so may be worth checking to see which elements should be replaced in pairs rather than individully.
Good luck
Harriet
Harriet Stone
November 2005