it could be jammed,or open circuit,you will have to remove the oven from housing and take the back off,turn mains of first,remove one wire from the faulty fan unit,check the resistance of the motor,
use a test meter set on the ohms scale,if its ok,then put your test meter to 240v ac,connect the red to one wire of the fan.and the black to the other wire,
get some one to turn the power on and the oven as you look at the reading your getting,if it says 240v.then your fan motor is burnt out,be very careful,if your not shure,get a electrician in
mm, January 2011
