I replaced the internal parts on the vacuum relief valve for a friend's machine. In doing so, you need to remove the cup warming tray and then the top cover of the machine (6 Phillips screws with a No. 2 screwdriver).
This top cover has two enlarged holes at the rear which allow the cover to sit flush. These holes expose the two Phillips screws holding the cover for the SSR (and maybe other electrics). I had to remove the right one because it was also holding the top cover on. This is NOT
the way it was intended.
Out of warranty, the easy solution is to enlarge the small hole with a bit like so:
The top cover will then be flush as was intended.