Permanent problems with 0.2mm nozzle on H2D

Bambu Lab H2D
1

Got my two 0.2mm Hotends for the H2D last week, but I can’t print anything with them.
On the right side it gives the error message that the extrusion motor is overloaded when loading the filament, on the left side it loads the filament and extrudes at least a little, but at the latest when printing starts it also gives the message that the extrusion motor is overloaded.
You can also hear the extruder rattling quietly for a short time before the error message appears.
Is there anything known about faulty 0.2mm hotends? I have no problems with 0.4mm and 0.6mm, they run perfectly. As soon as I put in the 0.2mm hotends, the same problems occur again.
Now the filament is so stuck in the extruder that it can no longer be unloaded and I have to disassemble the whole extruder.

Does anyone have the same problems or an idea for a solution?

2

.2 worked fine for me other than the excessively long initial purge creating a blob every time.

3

What filament were you using?

4

PLA (Bambu, Sunlu), ABS… always the same error.

5

Plain pla or some kind of fancy one silk, glitter etc?

6

no … i don’t use this kind of filament
i only use PLA+, PLA Basic, PLA Matte

7

I saw somebody was having problems with their H2D nozzle rattling and not making clean prints somebody in their comments suggested taking the nozzles out and tightening all the bolts in those spaces as if they come losose while being shipped or quality control just misses it it can cause problems idk how trustworthy it is but :man_shrugging:t2:

8

One thing to check, especially if this is an old file from X1C days or such, is that the PLA filament’s long retraction is off. Default is off now for 0.2 H2D for a clean project.