Error with high temperatures on P1S

Bambu Lab P Series Troubleshooting
1

Hi all,
when i print filaments that needs high temperatures (around 260°) my P1S stops working, after 15/20 mins, with this error:

The hotend cooling fan speed is too slow or stopped

i tryed with PC and ABS with the same result. All PLA are ok.

Filaments are dryed (as you can see in the photos attached).
PC is bambu and i used its settings.
ABS is ESun and i used Generic ABS

PC
PC2048×1974 416 KB

ABS
ABS1920×1583 390 KB

This appens with all 3mf i used.

Thanks

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2

So I have to ask, is the hotend fan spinning when you see the error?

3

when i print these types of filaments i hear a “different noise”, there is some fan that is spinning a lot i think.

I will try another print… ready to check the fan in case of error…
Thanks

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