Hi Wayne-Ooo, thanks so much for your reply and the tips! We cleaned the heck out of the machine, but still no luck...we tested it with the most pristine tokens we had, and sure enough, after a few, the error code would come on again. Sometimes we can insert 3 tokens and it will come on, other times we can get up to 45 before it comes on...I don't even know what else to do to try and fix it. Could a new coin mech be what we need?? I really thought it was the tokens, but even the "perfect" ones cause the error to come on...