OK, Now we are getting somewhere. The problem is with the Coinco Mag-50 validator. I’ve encountered this problem a couple of times. For some reason after they have been updated for the colored $5 bill and after they get some age on them they don’t work well in a
Hamilton changer. We’ve had them on the bench and they work prefect, ran a couple hundred bills into it without any problem. Reinstalled it back in the machine and they’ll steal bills on occasion. Coinco does seem to know what the problem is, but they are aware of the problem. My suggestion would be to replace the Mag-50 validator with a Mars AE2601, there’s a rebuilt one on EBay now for $159.00. You’ll also need a
Hamilton Mars adapter Harness #48-3012 list price $29.41 and a Mars Inhibit Relay Pan Assembly #60-2056A list price $83.00,. The mounting bracket that you’re using now should work fine with the Mars validator.