Question about buying used Lead 4R

[ZahScr]

Hey everyone, I'm not a Nord owner yet but I will hopefully have my hands on one soon. I just found a Lead 4R module on craigslist for a really good price but haven't been to see it / test it out yet.
I'm wondering if there are any known common issues that the Lead 4 Racks have (common problems/defects, etc). If there are any reoccurring issues for users, I would like to ask the seller about them while I'm testing out all of the functions. If anyone has any other advice on purchasing a used NL 4R, that would be much appreciated as well.

Thanks!

Zach

[SB-SIX]

You probably bought it already, but some general advise would be to turn all knobs, see if no values are skipping and test all outputs.