Quoted from SKWilson:
I believe the diverter does stay down during most haunts (doesn't it?). When it moves up to start a haunt the ball rolls into the rear "subway" and is held by an up/down post. When the haunt begins, the diverter moves back down to cover the hole to the "subway" and directs the ball to the left.
You don't need to select the switches. Pressing enter will cause the diverter to move and activate the switches. The problem is it's not moving to close both switches.
Yours seems to be behaving like mine did. Like I said, I took mine apart, put it back together and it worked. Unfortunately, I don't have the foggiest idea of what I did that corrected the problem. I originally thought it was catching on the plastic.
If you pull the playfield forward and look behind the back panel, you'll see how it is supposed to work. You may just need to play with it to make sure it's not binding up. It helps to have someone at the coin door to press enter while you fiddle with it.
This is what I did: Removed the top of the house (this is when I lost a screw I still cannot find... LOL). Removed the diverter itself from the front of the back panel (2 screws). Removed the motor and assembly from the back of the back panel (3 screws). Figured out how it worked (it's a pretty simple assembly). Put it back together. Watched it while another pressed the enter button to test it. It worked.
I wish I had a "fix" for it or knew exactly what the issue was, but I don't. Maybe someone else has a better clue, but I think just getting into the assembly and playing with it will reveal or fix the problem. You have no idea how much it pains me to not have a better answer.
Well... I still haven't gotten my new guide rails for the skill shot. Been more than a few weeks, and I live just a county away from Stern. So I did contact them today about if they sent out the replacement kit. Haven't heard back from them yet.
I would like to wait until I get my kit to mess around with it... But, must needs when the devil drives.