I'm hoping someone here has an idea on what may be causing this. I just got an Aerosmith LE NIB four days ago and it was playing perfectly but now the left popbumper is firing on it's own without the ball hitting it. It started with the left flipper button when pressed it would fire and now just randomly sometimes when the left flipper button is pressed. Do I have a node board problem already? I lifted the playfield and everything looked just fine as a NIB pinball should. I can't play the game much now as I don't want to burn out the coil but it's not going away. What could be causing this? I'm really discouraged now this was my first NIB game and this problem seems like it could be serious. Thanks for any help on this.

I think that was it. I kind of adjusted the metal leaf switch or whatever it's called and played several games and no problems. Thanks for the help. I'm not good at fixing things with pinball but I'm getting better with the help that I get here. Hopefully it doesn't come back but if it does I'll know what to do now.