Post #3916599
2026-07-18 17:53 UTC
Trouble in the Prusa paradise. I started my first ASA print and maybe 10 minutes in I get a fan error message. I copied this custom ASA profile from MK4S where it has worked fine for couple of spools.
The error persisted and I visually inspected the fan, it spins just fine. So what gives?
Looking at the telemetry the fan is supposed to run at 200-300rpm at the 12% setting. Am I hitting some kind of a lower threshold? For the laughs I bumped the setting to 20% and I've now printed for an hour.
Weird thing is that MK4S and Core One have AFAIK the same fan and probably similar control for it.
We'll see what happens.
#3dprinter
Replies (1)
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@apzpins@some.apz.fi 2026-07-18 19:13
It printed just fine with tad higher fan speed. I'm assuming a firmware bug. Noticed another: after the print is finished, the cooling fan never stops and the display still shows a target temperature even when it no longer heats. The fan stops when I manually select cooldown. I'm suspecting the 6.5.7 isn't a good release. #prusa