After the game was moved, it kicks two balls into the shooter lane at the start of a ball, although every trough, outhole and shooter switch registers in switch test.

Kicks two balls to the shooter lane after a move: one ball too many in the trough

Cause: There was one ball too many in the trough (three instead of two), probably a stuck ball that dropped back in during the move.

Checks

• Count the balls first and compare with the number the game expects.
• Then check the trough switches with balls at rest, the shooter lane switch, and the eye lock switches.

Fix

• Remove the extra ball.

Systems

• Williams System 11A

Games

• Pinbot

Related tips

• No ball to the shooter and saucers won't eject: visor stuck open
• Inlane, outlane and drain switches all dead: blown switch transistor Q49

Source: Pinball Repair help group!! (Facebook group)