Hello,
I work for Glotech who repair domestic appliances. According to my book of fault codes F10 = "Common of heater open, one shot open."
That isn't that clear if your repairing it yourself you need to test the element.
However if you live in Hertfordshire and North London call us to get one of our great engineers out.
http://www.glotechrepairs.co.uk/
Glotech_Repairs, May 2010