Exposed Fan Oven Element and Blades
Once the back plate has been removed the fan oven element and the fan blades will be exposed as in Figure 3 above. In many cases you will be able to detect at this stage that the element is indeed at fault. There may be visual signs of burning, blowing, bulging, or splitting, in a particular area of the fan oven element. This is the confirmation of diagnosis that you are looking for. Be aware, however, that in many cases there will be no obvious visual signs of failure at all. With the element exposed It will also now become apparent whether or not the replacement of the element can be done from inside the oven, or if it will be necessary to gain access to the rear of the oven.
