Crane 765 programming

[withnail]

I have a Crane 765 snack machine with a problem that's driving me nuts..
The top 4 trays all have 4 products, and all trays have 4 motors with double spirals connected by gears.
The status of the top 2 trays is fine and are reading A. A. A. A. and B. B. B. B.
Tray D is missing 2 motors on the display, and is only showing D. D.
I've had this problem before and have usually solved it by re-connecting the wiring harness at the back of the tray or changing an incorrect price.
However, this time tray C is showing C. C. C. C. C. (x5) even though there are only 4 motors present.
My question is, is it possible via the program to add/remove tray motors/letters?
All I can get it to do is change from a letter C to a cross symbol, I can't actually remove the 5th C.
The main problem is D, but because I'm seeing 5 C's I'm thinking it's a programming problem rather than the wiring.
I've also swapped a known good wiring harness from B to D but it remains exactly the same.
The manual only talks about coupling the motors which is not the issue.

[Coin Operated Group]

Can sort that too lol

[withnail]

Tell me then haha
I could get my head around missing/less tray letters, but couldn't work out how it was seeing more motors than there actually is...
I've been a car mechanic for the last 32 years, so I'm pretty handy
A friend of mine has recently bought a vending company and I've just started working with him (for a change), 160+ machines and it's a new world for me!

[Coin Operated Group]

Firstly switch the trays, a working one for a faulty one. If the fault follows the tray its the loom, if the fault stays on same row its tray rail pcb

[withnail]

Just did that this morning, switching trays made no difference so like you say, probably the tray pcb. I will swap the pcb next time just to make sure, and then try and find one online.
I've seen a couple of UK suppliers for that sort of thing but Brexit's made it a right pain to order stuff from the UK online.
It doesn't turn up, then you get a letter from Belgian customs saying you have to pay an extra 20 quid before they'll send it on to you...

[Snackmore]

you tried vendparts?

[Coin Operated Group]

if you know its a tray rail pcb I can send you one.

Vendparts steve? we dont recommend them anymore lol i would rather send for free

[withnail]

Thanks guys, actually just sorted it today. It was the tray PCB. Also sorted 3 other Crane's with the same problem but they all had broken wires right at the end where they're crimped onto the pcb connector. Found a good guy in the Netherlands that has a load of new and used parts that's only an hour away from me. No more headaches, for the time being