Pressing the right flipper button resets the game every time. Just before this the left flipper had been weak because its hold wire and a diode had broken off the coil.

Game resets when the right flippers are pressed: corroded fuses

Cause: Two fuses, one of them feeding the upper right flipper, had corroded, tarnished end caps that dropped the voltage under load; the right side runs two flippers so it pulls more current.

Checks

• Check flipper coils for broken wires and diodes at the lugs.
• Pull each fuse and inspect the end caps and fuse clips for corrosion, not just continuity.

Fix

• Resolder any broken coil wires and diodes.
• Replace the corroded fuses (and clips if needed).

Systems

• WPC Fliptronics

Games

• White Water

Related tips

• Upper flipper weak, then dead: blown fuse on the Fliptronic board
• F111, F112 or the line fuse keeps blowing

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