A good place to start that research is the archives here. There are many testimonies to manufacturers who have gone the extra mile to service equipment which was bought used. I have had several incidents where I needed service or help with used equipment and have received excellent service each time. On every occasion I was up front about the fact that I bought the item used, no problem at all.
How can the manufacturer not know the date the unit was built unless the serial number is missing?
Bottom line, that guys an idiot.
How can the manufacturer not know the date the unit was built unless the serial number is missing?
Bottom line, that guys an idiot.

