Expander lite only lites when expansion solenoids are needed. Press the red button inside the coin door once. All lites including Exp lites blink. The expander should also CLICK with each blink.

If that game has a linear outhole mech (nothing turns), compare yours to pics of a good assembly. They are often broken and "repaired" in mysterious ways.

I would check the solder joints on the connector of the Solenoid Expander Board.

Same issue here but not resolved yet. I reflowed the Solenoid Expander board, swapped a different one in, replaced the coil sleeve, changed out the armature and verified that there is no obstruction in the trough.

All of the wiring looks great. I did move the machine across town recently.

Would you experts think that the problem is with the coil itself?

All other coils and game operation is fine.

Thanks

Having the same issue
Was wondering if a solution was found
Game works 100% except for
Kicker being weak intermittently
Kicker is run from solenoid expander .

When I’ve had similar issue (a couple of times) it was just needing disassembly and a good cleaning for a strong kickout.

Thanks for the advice Steve o
I have cleaned the solenoid assembly kicker and it is working smoothly
I also checked the connections on the boards
Including the solenoid expander board underneath
The playfield.
The kicker works perfect about 1/2 the time the other 1/2 the time it is weak like it’s not getting enough power
I noticed the solenoid has 2 diodes on it
Not sure if that could be the issue I haven’t checked those yet
Maybe it’s the SEB ?
Game works 100% except for this intermittent problem

Unscrew the apron but leave it in position.
When the outhole coil starts to go weak, remove the apron, place the ball back in the outhole and watch if the ball is getting kicked straight to the shooter lane or if it's bouncing around the guides/channel to get there (i.e. is the ball not moving smoothly).

If it's all good, temporarily bypass the solenoid expander by hooking up a jumper wire to the playfield fuse near the flippers. Make sure the wire cannot fall off. Connect the other end to the brown-orange wire on the outhole coil lug. Place the ball back in the outhole and see if you get full power.

Thanks for the advice quench
I will try that when I get off work
I have the apron off now
It is definitely the strength of the solenoid that is the problem
I can see and hear the solenoid when it works perfectly vs
When it dose not