Leisure professional 110 right oven not working?

Our oven was working ok until we had a powercut. I turned the trip switch back on at the mains, set the timer and the right hand oven would not light. The left hand oven, grill and all 5 burners work. When you turn the knob for the right hand oven, there is no click (like when you turn the knob for the left hand oven) or gas released. I'm just wondering if anybody can give me advice, as everything else works on the cooker.