[BUG] Hotend Fan always 100%

Poket-Jony / Marlin-A4MaxPro-2.0.x

🖨 Marlin 2.0.x optimized for the Anycubic 4Max Pro 3D printer

GNU General Public License v3.0

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[BUG] Hotend Fan always 100% #13

Closed bernhardberger closed 4 years ago

bernhardberger commented 4 years ago

With the 2.0 beta release the hotend fan doesn't shut off at times and stays at 100%.

Not entirely reproducable at all times, but I had just had it on PID Autotune, even after restarting the printer multiple times.

Erik262 commented 4 years ago

With M107 you can power off your fans. But I think the fan wants to cool your printhead down or does it also appear on low temperature?

bernhardberger commented 4 years ago

I wasn't able to shut it off at all. But I think I may have found the culprit: printer off, hotend > 50°C (approx) - printer on - fan goes 100% and stays there. If I let it go down < 50° and reboot after that all is normal.

I think this really is an edge case now and can be ignored.