I have just replaced the fan for this oven as it had stopped spinning. However it appears not to be the fan that has broken as the new one behaves the same. One important obserbvation is that when you switch it past the first click - light only no heating element on, the fan spins. The moment the heating element kicks in , the fan stops. There is obviusly some control mechanims that controls power to the fan (a yellow wire goes up towards the control knob area. Is there another replacement part or shall I just wire in the fan to be on all the time? :-)

Strange one this. According to the wiring and circuit diagrams, the yellow wire from the fan should go to contact 4 on the main oven switch. The oven element is connected to the thermostat, which in turn is connected to contact 3 on the oven switch. When the oven is on the handbook says that contacts 1,3 and 4 are made, contact 1 being the oven lights. So if the lights come on and the fan turns, the switch is more or less working. The only other thing that overrides the oven element is the thermal cutout. If you still have the problem, let me know what the thermostat neon is doing in all of this. It will be interesting to see what this is doing. Also, if you want the handbook which includes the diagrams, post your email address and I will send you a pdf copy.