Basically, it keeps switching itself off randomly as though some sort of cut off point within the adaptor itself and the fuse is letting through too much power. Sometimes its every few minutes, other times its every half hour or so.
Take the plug out of the adaptor and plug it back in, or flick the power switch off then back on and its fine again until the next time it decides to go off.
There is a 10amp fuse in it atm, because last month I had to replace the 5amp for the same reason and didnt have a new 5amp to hand.
After I replaced the 5 amp it seemed to work fine until tonight when its started doing it again.
Gonna get a new 3amp and 5amp fuses to try tomorrow, but any other idea's??