Morning...I'm a total newbie..I, too have a MARS unit on a Dixie Narco Soda machine. The dollar validator is not working. It's not even attempting to accept a dollar as if something is unplugged. I tried disconnecting and reconnecting everything, but to no avail; the solid red dot is still there indicating there's a problem. The coin mech, however, is working perfectly. Seems like a very easy fix, but I'm not sure. Does anyone know of a good repair service in the Philadelphia area that is reasonable? Also, could anyone provide suggestions as to what the problem could be when that is happening?
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