I recently updated the extruder of my Custom Tronxy X5S with Linear Rail. Buy an E3DV6 all metal, 24v bowden. After several printing tests, with different filaments, and temperatures, I decided to follow the troubleshooting guide; try everything; I finally decided to change the extruder motor for a Hemera bowden (Since in the guideline that the series engine might lack strength). After mounting it. I still have exactly the same problems. Where the filament is stuck is the throat that joins the nozzle with the heatsink, (I thought it might not cool well, and it was right, I had the fan connected to a 12v socket and not 24) when going to change it, it broke ; I have changed it to a 12v high air flow. But the same result. Of course, I can't print at 200º, I have to go up to 215º and even so, it gets stuck in half impression. (Cube 20x20). Any suggestions? All help is welcome!