Good Day,
I have an older USI 3129-L (old Lance snack machine) that had an old MAKA validator in it. I've taken the MAKA out and put a refurbished MEI VN2512 U5 in, but it will not work. It flashes 2 flashes indicating "disabled from mech/VMC". I've unplugged and replugged numerous plugs, tried a different coin mech (both coin mechs work fine in this machine), gone into service mode and back out, and it still does the same thing. I've tried different switch combinations on the validator also. The coin mech is a 15 pin Coinco 9302LF. It takes money and gives change like it should.
The old MAKA was still working, but occasionally would not take a bill.
This is the 3rd one of these I've done and I had no issues with the other two. Both of them were also 3129-L machines that I put MEI VN2512's into.
Any idea what might be the issue??