Hi,
I installed the driver again and it now shows up as a Duet.
I thought I would progress by testing the extruder/hotend but hit a snag and learnt a valuable lesson.
I have converted the K8200 to 24v, I set the temperature and enabled the heater where the temperature shot up very quickly and then faulted out. I checked the resistance of the heater which was 6.7ohms which equates to 86w. There were no markings on the heater so the lesson here is don't but cheap off ebay or Amazon (I can't remember which) but if it were an E3D one it would have had the rating etched on it.
Now waiting for the postman to bring me a genuine E3D heater.
Bob