I had the F115 F116 J112 errror following the machine firing ball after ball. After repinning things it seemed to be playing right. Now, it sounds like the volcano is trying to fire and then all of a sudden, balls star firing out again. I sometimes get a opto error and bad trough error. I cleaned all the optos in the volcano mechanism. Any suggestions would be greatly appreciated.

Thanks,
Mark

Thanks for the suggestions. I will give them a try after eating some turky. Happy Thanksgiving to all.

I went into the test mode and the switches are fluttering. What do I do at this point? Thanks

Right now it's just switch 24, says always closed. Before switch 41, 42, and a couple others were fluttering. Any suggestions would be greatly appreciated as always.
Thanks,
Mark

The other thing that might be important to know is that it will play fine until I lock a ball. Then it goes crazy and starts firing balls non stop. If I shut down the machine and restart it is fine util a ball is locked. The other switch that was fluttering was 31.

I've got NGG and WH20. Do they have the opto board to swap out and check?