First use and fail  

RE: First use and fail

It's hard to tell but from the first photo it looks like the nozzle isn't fully inserted into the heatsink assembly. 

RE: First use and fail

Thank you.

Amocher pic.

I ordered it full mounted, first self test worked straightforward and now it's stuck.

Unmounting/mounting the devices and parts as I am a beginner is quite hazardous.

Which options do I have ?

RE: First use and fail

The first option is to get rid of the filament. The second option is to download the CORE One assembly manual and see how the block assembly in the cooler should look correctly. This last photo is completely useless! We've already seen the filament that has come out! I want to see a photo of the heating block from the front so that the partition in front doesn't get in the way. At first glance, it looks like the nozzle and heating block assembly in the cooler is incorrectly seated.

RE: First use and fail

Even without a different photo it is clear that the nozzle is not properly seated.  The top of the heat block is nearly level with the part cooling duct! 

@quarkholon, follow the instructions here to properly insert and secure the nozzle assembly.  Be careful to not pull the assembly any lower as you are already at risk of damaging the nozzle heater and thermistor wires!

Regards,

Steve

RE: First use and fail

I can see now from the latest photo that the nozzle is not fully inserted. The heat block should not extend below the fan shroud. Loosen the thumb screws and push it all the way up. Only around 1mm of copper on the heat break tube should be visible. 

RE: First use and fail

Thanks. I am in the middle of investigations with PRUSA CC.
Brand new Assembled Core One + received 2 days ago, self test went ok and then all screwed 🙁
idler checking
nozzle well in place (pushed up)
acupunture needles
reran the calibration testing
As if the nozzle was screwed