First step, was to remove the burr collar. *These are a bit different to the flat blades and you can get your fingers in there. *So there is a safety switch. *There is a little plastic extension on the hopper that slots into this little slot to depress a micro switch. *A trap for young players that don’t like to read manuals. *I was trying to run it without a hopper to test it as I didn’t want to take the hopper out of the plastic. *Took me a while to resort to the manual to see what the problem was.
Also grinder must have been tested and reset. As it was reading 0000 but there was coffee residue in the burrs so obviously tested.