After the playfield was taken out and refitted, pressing start runs the reset but the game gets stuck firing the outhole kicker, with the outhole relay pulling in even though no ball is in the outhole and the switch looks open.

Start-up sequence keeps firing the outhole kicker: outhole switch barely closed

Cause: The outhole switch blades were only just apart, enough to pass a meter check but still making contact in operation, so the outhole relay kept being energised.

Checks

• Check that every score reel and the ball count unit reset fully to zero (dirty score reels can also stall the reset).
• Watch the outhole relay during start-up: it should only pull in when the outhole switch is closed.
• Look at the outhole switch and its wiring for bent tabs or stray wire strands.

Fix

• Open the outhole switch gap properly so it is clearly open with no ball present.

EM games have line-voltage circuits: unplug the game before working on switches under the playfield.

Systems

• Electro-mechanical

Games

• Full House

Related tips

• Ball never ejected from the outhole at game start: dirty score motor switch
• Gottlieb hook-type outhole kicker fails to feed
• Gottlieb resets but won't serve the ball: bonus unit not at zero
• Ball only rolls halfway up the shooter lane from the outhole
• Trough switch versus outhole switch

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