i see a couple of allen head bolts on either side but it looks like there's more than that holding the plastic cover in place. i'll have a go if i get some daylight spare time over the weekend, any pointers welcome.
It's the circuit board that's gone.. you may be able to see a wire that plugs into the board behind the controls. I couldnt get it out so got the dealer to do it under warranty.. well, it was only 2 days old after all!