I just got my Diner last night and it worked at the store and now that it's setup in my basement, I'm having the exact same issue. The right ramp never opens the diverter, but the switch works in test mode. I'll check the alignment when I get home tonight. Frustrating for sure!

I did a factory reset, set it to 5 balls per play (not the 5 ball settings) and changed the right ramp to Medium and we never got the diverter to work. I'll check the switch tonight. I assume this would be causing the left ramp to never lift since the lock light never gets lit.

Well, I came home and double checked the connections in the back box and discovered an unrelated loose screw holding the 'diners', put it all back together after activating the switch a few times and everything seems back to normal! When you change settings from hard to medium, etc., do you need to turn off and back on for those settings to take effect? Although, I turned on/off last night and it made no difference. Oh well, at least it's working!