Answer to: LED Off on AC Adapter - Won't ChargeI add the same problem. It turn out the connection inside the adaptor to the lower voltage side is very prone to short circuit. I broke open the adaptor no screw, probably snaps or glue, and I cut the plastic protector of the low voltage wire. Inside, there where signs of short circuit. A bit of electric tape, and I work like new, like I said, it is not as pretty as is was, but it work.