You need to fill all 4 slots and have it at 55 to get the elevator working.
No, they're right. There's a glitch where the breaker never turns to 55. Maybe replaying the game fixes it, although, I doubt they want to do that, lol.
We haven't heard of this issue before, could you share a screenshot of the 4 filled slots? This will help us debug it, thanks! ^^