OK, thanks for that.
Isolate the power to the appliance.
Pull it out.
Take the screws at the rear of the top out.
Lift the top up a little and push it forward slightly.
It will unhook at the front.
Lift it up and slide it back to reveal the switches.
Once off, Open the top oven door.
Take out the 3 screws holding the panel.
Take out the 2 screws at the top holding the facia on.
However, you should only need to pull the knob off to get to the screws holding the faulty part. You may not need to take the facia off.
Check it out, see how it goes. Get back to me if you need more help
Hope this helps
It will then tilt forward