Hi,
hmm i print at 200 - 230. Perhaps it was a software failure or something like that and the temperature goes over 340 °C?!
The problem is that the hole head (Alluminium block with nozzle and the brass pipe) doesn't hold on the PEEK insulator and so it fall of.
Hmm i try to fit it with some PFTE tape, but i think i need an new PEEL insulator.