The fan topper didn't work at all.
Fan doesn't run: cracked solder on the fuse holder on the triac board
Cause: A fuse holder on the triac board had a cracked (cold) solder joint, so the fan circuit was open even though the fuse was good.
Checks
- Check the fuses on the triac board, then look closely at the fuse holder solder joints and wiggle the holder with the game off.
Fix
- Reflow, or replace, the fuse holder's solder joints.
The triac board switches AC; unplug the game before working on it.
Systems
Games
Source: Pinball Repair help group!! (Facebook group)