Fruit Machine Chat

where do I find that mate? That's exactly what's happening

Yeah, I've had the front up and the wheel spins freely where the other two are normal.

Hi all, new here and unfortunately don't know much about the guts of these machines at all so a little help in the right direction would be much appreciated. We recently had work done in the conservatory so had to move out my machine. Now its back in place and plugged in it comes up with a code: 21 ...