I believe that when this happens the warranty re-sets so if you can fuck it (not literally it may be some what embarrassing arriving at a&e and telling everyone how you "fell" on it) within 12 months you'll get another new one.
I do have an order number in my account dated today, but starts with an X rather than a Q. We'll see. If it does within 12 months I'll ask, but I won't complain if they don't replace. Happy enough with how easy it was today.
Shiny new sander handed over with zero quibble.