Every ball is fired from the shooter lane the moment it arrives, without pressing the launch button. Software settings were not changed.
Ball auto-launches as soon as it reaches the shooter lane: launch button miswired
Cause: The launch ball button switch had been reconnected to its normally closed lug, so the game saw the button held down all the time.
Checks
- Watch the launch button in switch test: it should only close while pressed.
- Check the shooter lane switch with a real ball resting in the lane, and count the balls in the trough (a missing ball can also trigger launches).
Fix
- Move the wire to the switch's normally open lug.
Systems
Games
Related tips
- Slam tilt when both slingshots fire together: sling switch wired wrong
- Pressing the coin-door buttons does not enter test mode
Source: Pinball Repair help group!! (Facebook group)