Redknight Posted March 8, 2018 Share Posted March 8, 2018 I have an old polyvend 6640. I don't know how to change prices. Any advice would be appreciated. Link to comment Share on other sites More sharing options...
AngryChris Posted March 8, 2018 Share Posted March 8, 2018 I don't remember the programming, but to access the programming, pull the sliding door out and there's a switch on the back of the slode out panel. You need to pull that switch out, then you can press the service mode button on the board. Their programming is a little confusing. Link to comment Share on other sites More sharing options...
venddoctor Posted March 9, 2018 Share Posted March 9, 2018 As mentioned above you need to pull out the switch on the panel then the mode button Link to comment Share on other sites More sharing options...
bullyfrog Posted March 11, 2018 Share Posted March 11, 2018 I've got some, can get you a picture of the programming label if that will help. Link to comment Share on other sites More sharing options...
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