Quoted from BR80:
The siren should be going off in multiball, special, etc....
Mine sticks and needs a bang on top to get it moving.
Sorry can't help trouble shoot beyond that.
Ok, so this thread is 7 years old, but this comment here is exactly what I'm curious about:
"Mine sticks and needs a bang on top to get it moving"
Any idea what is causing this or what can be done to sort it out once and for all? Mine sticks too. Not always, but maybe every third game. No rhyme or reason that I've found so far. It all looks fine when I took it out. All screws are in place on both the plate to wood and motor to plate. Wiring connector is fine and bulb comes on reliably every single time. The little disc just doesn't always get rotating when turned on. A light tap on the left side gets it going though, every single time without fail.
Weak motor? Replace it and done like dinner?