We are talking about a Twilight Zone, specifically the shooter diverter by the plunger. Consistently it will activate initially when required to divert the ball to the auto fire kicker, but only stays activated a couple of seconds and then closes before the auto fire kicker can launch the ball. When the solenoid is tested, it activates once and then fails to activate again. Would greatly appreciate any thoughts.

Not sure which switch pinmike is talking about. The manual doesn't list an auto launch switch and for the machine to determine it has a ball in the auto kicker there is a led setup that works like garage door sensors and mine works just fine. When I run the solenoid test on repeating and it only works the first time, you can still hear a hum of it trying to activate like maybe it is not getting enough juice. Sc1f1 I will post a solution here if I find one. You might try the repeating test on the solenoid and let me know what happens.