The fan oven on my Leisure Victoriana Deluxe doesn't heat up?

The light comes on and I can hear the fan on my electric fan oven of my Leisure Victoriana Deluxe, but there is no heat. The smaller electric oven heats up fine and the gas hob is ok too. It just suddenly stopped heating up a week ago. I've never used the timer, but the hand sign is showing, and the clock is working. I inherited the cooker when I bought the house, so not sure of it's year.