I have just removed the gecko from the lathe, opened it up and checked the fuse, works fine.
I am doing a little test as list on the cnczone forum, checking connection between Pin 1 to 3,4,5,6 all of them show 100kohm resistance next checked from pin 2 to 3,4,5,6. all of them read 26kohm. Don't know if that's good or bad.
One thing I did notice is when I went to check it first using the screw heads on the terminal block I got a reading of nothing. Could it be the terminal block is just not making contact with the pins, Bit far fetched when its on all 3 geckos.
I have no idea where to look next!