cooker control unit?

So i have the above in my kitchen which is a combination of cooker switch on/off,socket and switch. Now the socket switch has broke so the on light is always iluminated so the power is always on.
I have unscrewed from wall to try and replace but the wires are too short and i cant pull it away from the wall to do this.
Dont really want to remove tiles and parts of wall to replace.
Any tips, i have thought of calling an expert to have a look.
Thank you.

ChrisB
February 2011