Every solenoid works in test, but in a game the trough eject and the pop-ups never fire.

Coils fire in test but trough and popups don't work in a game: trough switches

Cause: The trough switches closed when pushed by finger but not under the weight of a ball, so the game didn't know where the balls were. Embryon is a two-ball game.

Checks

• Make sure two balls are installed.
• Test the trough switches in switch test with balls resting on them, not a finger.

Fix

• Adjust the trough switch blades so a resting ball closes them reliably.

Systems

• Bally MPU AS-2518-35

Games

• Embryon

Related tips

• Embryon: outhole switches
• Vector: trough switches
• Multiball balls not released, game loses track of balls: trough switch actuators
• Game drops back to attract mode a minute into play: ball trough switch stuck closed
• Multiball game will not start: ball or trough switch out of place
• Elektra: start-up switches

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