newbie needing help with a AP 112 vending machine

[lonestar]

I have purchased a used american products 112 vending machine and it works great except for 2 of the selections do work, C5 and D5, when selected it say "make another selection". i have no clue how to troubleshoot it and any help would be appreciated.

[AngryChris]

More than likely you just need to replace the motors.

[Apple Leisure]

 So all of the selections except for C5 and D5 don't work, but those two do?  If that was a typo and you meant the opposite then try the following:

 

It's actually Automatic Products and before you replace the motors try re-setting the prices.... if and when that doesn't work do a motor test on each selection, and then maybe re-set the prices again.  Try those things and if still no luck report back here.  This sort of problem is somewhat common for this series of machines.  I've run into it in the 113s a lot (never used a 112, but I'm guessing it's similar) and I've always been able to remedy it without replacing any motors.

Edited November 21, 2019 by Apple Leisure