That is the stacker encoder. We can try a couple things.

1. Check there are no bills in the BV
2. Remove the cashbox and check there are no crumpled bills inside.
3. Remove all bills from the cashbox.


I would suggest you remove the BV from the game and remove its covers...use some canned air to blow out any dust and fluff from inside.

[Pre-warn] be gentle with the blue clip at the front of the BV. We are most concerned with the right side ( don't worry about the top panel )
https://www.youtube.com/watch?v=6TCBZDGVLwg ( Shows how to remove the side panels of the BV after unclipping the front panel)

Chicken I just sent you a direct message.

You have a Bally S5500. When you plug it in, what does it show in the display? Can you post a picture of it plugged in showing the info in the display?

NLG member Jim Midwest Slots has WBA's for sale

...or she's saying..."When are you gonna finish putting that Wheel of Fortune together?"