Hi I might be tool late to help you but you have to take the back off of the oven. You need to grip the fan itself and undo the centre nut. It is important to say that the nut turns the oposite way to normal threads to undo ie clockwise.
Can I ask you a question do you know the model number of your cooker because I have the same model and I cannot find the model number. I need it for a spare part. Any help greatly apreciated. Kind regards Keith.
keith, August 2010