It's a 13W T5 fluorescent tube.
While you're at it you might want to replace the starter as well, it's behind the control panel.
The way I've accessed the tube is this:-
Switch off at the mains
Remove the hinged glass cover (pull out on the front of the hinges and slide it out)
Undo the two screws holding the top metal trim
Remove the knobs (the knob skirts are brittle, you'll probably break most of them, but the knobs themselves are fine) and the buttons, they all just pull out
Undo the screws holding the panels either side of the glass control panel (one each side)
Lift out the glass and panels in one piece and place on top of the cooker (watch out, there's an earth wire on the left hand side, which is why you're placing it on top where it can reach)
Undo the four bolts holding the metal control panel in place
Pull forward and lift up, the starter can now be accessed (unless you have fat hands) - it's a twist-in type the same as any normal fluorescent starter
The tube can now be easily replaced too, just twist 90 degrees and remove
To refit the panel, locate the bottom behind the little rubber pegs and push the top back into place, then reverse all of the above instructions.
Martin Pritchard, June 2007
