[BUG] fialament fan incorrect control

Foxies-CSTL / Marlin_2.1.x

This repository, based on the work of the Marlin team, contains the source code and some firmware for the Deltas printers. This firmware is optimized for FLSun 3D printers based on the original 32-bit platform. | Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.

GNU General Public License v3.0

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Did you test the latest `bugfix-2.1.x` code?

Yes, and the problem still exists.

Bug Description

I have problem in controll fan speed. when the fan set to 0% led D1 flashes a little bit and the fan try to move. when the fan set to 100% led flashes yet and the fan not run constantly. video

I try a stock firmware and ther'isnt problem, so is not hardaware problem. It's a bug of Marlin on MKS robin nano v1.3? (in v1.2 it doesn't happen).

Bug Timeline

No response

Expected behavior

No response

Actual behavior

No response

Steps to Reproduce

No response

Version of Marlin Firmware

2.1.1 - 1.2.10

Printer model

Flsun Q5

Electronics

MKS robin nano v1.3

Add-ons

No response

Bed Leveling

None

Your Slicer

None

Host Software

None

Don't forget to include

[X] A ZIP file containing your Configuration.h and Configuration_adv.h.

Additional information & file uploads

config.zip

Foxies-CSTL / Marlin_2.1.x