Have you bought any of the PTFE tubing you see on Amazon and sites like that to use for replacements?
I have been looking at them I have not decided yet. The prices are great compared to buying them pre-cut.

Quote Originally Posted by cncartist View Post
Welcome!

To start, we will want to know what filament you are using (make I'm assuming QIDI, but what color?) and what temperature you are extruding at.

I would recommend removing the nozzle from the extruder and cleaning it out if possible, it definitely sounds like there was some buildup. Might be an issue if you don't have a spare nozzle + PTFE tube to use, the nozzles PTFE tube had clogged/solidified on me one time and I fixed it easily by replacing the nozzle + tube.

Another thing to try is bumping up the temperature by 5 degrees C or less in increments to see if it's a temperature issue - the reading could be off for your sensor and there may also be a sensor problem which I haven't troubleshot on this machine. I wouldn't recommend going over 250c for ABS during testing.