I recently purchased a Coke Vendo 407 and the bill validator worked just fine when i first purchased it. After I got it home, it worked once and then began giving me some trouble.

When i enter a bill, it draws it in a very little ways, and then passes it back. I am also receiving 5 "blinks" which states that there is a "Bill Jam" (however, there are no bills in the machine at all).

I downloaded the manual and took the entire validator apart, cleaned the sensors, blew dust out from all the sensor areas, and reconstructed. Same issue.

Any thoughts on what may be going on? I would really like to be able to fix it instead of having to purchase a new one...

Thanks for any and all help!