The printer is 2 months old. I printed in many layer-heights, temps and speeds with good results.
Suddenly the Printer stopped pushing filament through the nozzle.
I opened it up, found this situation, cleaned it, closed it, used it and it happened again immediately.
printhead disassembled and ordered
It seems, the filament melted before it got into the peek isolator and clogged the hot end isolator.
hot end isolator coupler top view:
What, why, and how to fix?