this probably isnt the same problem as yours but i got a brand new one and within 3 washes there was the most terrible smell of burning rubber and like a smokey smell. I thought it was a gonner.
The man came out and he said i should have done the hottest wash on it to seal the rubber on the doors and that the most common complaint he gets is this problem.
I know it probably wont help you but others might be having the rubber thing going on, so passing it on - just do a really hot wash.
hope you get your washer sorted.