I was waiting for someone to bump this..lol
New fans replaced and testing back at their factory is currently happening.
We haven't had a chance to put them in yet, it's winter time
They will get back to us soon with their finds.
We are all stumped to be honest.
I will come back when I know.
I'm thinking a bad compound or an accidental mispack of 24 volt motors in 12v package but I'm only speculating of course.
What I can say is they took the problem serious and will find out what happened. I'm almost hoping it was our side but I just can't see it.
Really happy with their service though mate. Don't really see that kind of service much these days so kudos regardless of the crap mark went through.