What is this? and why does it say invalid slot

[scamper65]

Hi, I recently bought this second hand vending machine. I have done some research and it appears to be a TN series from Panda vending. If anyone can confirm this would be great.

It has a note reader and coin changer in it and has the lift which all worked a couple of times, however it now just has the words invalid slot no matter what selection you make. 

I attempted to reset the stock count as from what I have read you need to manually adjust the stock or it thinks it is out.

Has anyone come across this before? and can anyone think of a reason for this and a possible fix?

[AngryChris]

I have never seen one like that.  I have never heard of that brand.   Unless you are outside the US, I'd say you bought a real dud of a machine there.

[scamper65]

5 minutes ago, AngryChris said:

I have never seen one like that.  I have never heard of that brand.   Unless you are outside the US, I'd say you bought a real dud of a machine there.

HAHA, sorry new to the forum here, I didn't realise it was for the USA only 🙂

Yes I am in Australia.

 

[orsd]

This forum is not technically US only but most members here are US based, so you are less likely to get help for non US machines.

Feel free to stick around though, there are a few members here that may be able to help.

[AngryChris]

1 hour ago, scamper65 said:

HAHA, sorry new to the forum here, I didn't realise it was for the USA only 🙂

Yes I am in Australia.

 

You're more than welcome to the forum and I hope you find some help but that machine literally looks so foreign to me that I had a hunch that you might be from outside the US, in which case many of us would be of no help here as orsd brought up.  I hope you find the help you're looking for.

[Vendo Mike]

I don't have specific knowledge of that machine but I would start with making sure all of the shelves are attached to the board.  If you're getting a "not valid" on all selections, that would lead me to a "bottle neck" or central issues such as a blown fuse or common wire for motor power.  

[AZVendor]

Hardly 2nd hand.  I say at least 4th hand.  Probably belongs in a scrap yard.

[scamper65]

5 hours ago, AZVendor said:

Hardly 2nd hand.  I say at least 4th hand.  Probably belongs in a scrap yard.

thanks for your input, very helpful indeed!

 

[scamper65]

7 hours ago, Vendo Mike said:

I don't have specific knowledge of that machine but I would start with making sure all of the shelves are attached to the board.  If you're getting a "not valid" on all selections, that would lead me to a "bottle neck" or central issues such as a blown fuse or common wire for motor power.  

I did that, it actually worked a couple times to start with, then stopped, so my feeling is either it is a setup issue ie. it needs to have the stock count reset and I did it wrong, or there is a problem with the micro controller board. I thought someone may have seen one of these, but it seems it is unique to this part of the world and not very common.