OP

Quoted from inhomearcades:

I was just playing a few games and the bottom right flipper and two top flippers are out. Everything else on that node board work. All three went out at the same time. What seems weird is a few times the flippers seemed weak or once it was unresponsive, not long after they do not work in coil test or game mode. Bottom left flipper still works which is also on node board 8.
I did add a shaker motor to the game. I played about 20 games with out the shaker, installed the shaker and have about 6 more games on it since then and now I have a game playing with one flipper.
Any help is greatly appreciated, Come Monday I'll give Stern a call but maybe someone here has dealt with this before.