I have a Vendo Univendor 2 with a Conlux 5 coin mech and a mag50 validator. If exact change is used, all is well. If you load a dollar it will display "1.00", then if you buy a $0.75 soda, it will give you a quarter in change, but then the display continues to show "1.00" and freezes. Same thing if you load a dollar bill and change return, it will give you 4 quarters back, but will freeze on "1.00". No difference whether it is a bill or quarters. Any help would be great.
badassrocker,
It can be a number of things, well 3 most likely, the coin mech, the validator or the control board. I would swap in a good coin mech first and retest the Vendo, then swap in a good validator and retest. If neither of those 2 are the problem then that leaves the controller board (the most expensive). It is better to swap in parts and test in the vending machine, but if you don't have known good spares around, you can have your coin mech and validator "benched" at a repair shop, their testing prices are usually pretty good and if either one is bad they have replacements they can swap right there.
if you have any problems, reply back, we'll see what we can do.
daryl