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Fan not working.

I was printing fine until my cooling fan stopped working at the start. It doesn't read gcode I have to turn it on manually.

Comments

  • JetBoyTRJetBoyTR Member Posts: 17
    Is there a way to reset my printer to factory settings?
  • ProkktorProkktor 🌟 Super Member 🌟 Posts: 146
    Depends on what you mean by factory settings.

    If you changed any settings on the printerboard via serial interface you can send:
    M502
    M500
    to reset the firmware to default settings.

    If you replaced any firmware, you can simply reflash the original firmware, links are in the wiki.

    The fan is operated via M106 Sx, where x is between 0 and 255

    I suggest you use a serial console like pronterface to sent multiple M106 commands, sometimes the fan needs a slight push to start spinning of x is to small to start on itself.
    Thanked by 1JetBoyTR
  • JetBoyTRJetBoyTR Member Posts: 17
    edited January 11
    The fan does not need a push it just doesn't wanna turn on using gcode I can turn it on only by using the LCD.
    Post edited by JetBoyTR on
  • ProkktorProkktor 🌟 Super Member 🌟 Posts: 146
    Did you try sending M106 S255 via pronterface?
    Thanked by 1Samuel Pinches
  • JetBoyTRJetBoyTR Member Posts: 17
    I'm new to 3d printing so how can I do that?
  • ProkktorProkktor 🌟 Super Member 🌟 Posts: 146
    You download install and lauch PRONTERFACE
    Then you connect the usb cable, set 250000 BAUD and your com port in Pronterface and click connect.

    On the left side there is a console where you can send commands.
    Thanked by 1JetBoyTR
  • JetBoyTRJetBoyTR Member Posts: 17
    I did it it worked through interface but it still doesn't work when I try to print something.
  • sasasasa Member Posts: 34
    Check your slicer settings. for example by default fan is disabled until 0.3 mm print height in Cura so it is normal behavior:


  • JetBoyTRJetBoyTR Member Posts: 17
    edited February 21
    Sasa I did it but it still doesn't work.  How can I change the 0.3 mm height limit to 1.5 or 2?
    In the printer screen, it says that the fan is on but it's not.
    I can send g-code through cure and it works but when I print something the printer doesn't read the fan control g-code.
    Post edited by JetBoyTR on
  • michalko99michalko99 Member Posts: 7
    post here your cura screenshot..Problem will be there for sure
  • JetBoyTRJetBoyTR Member Posts: 17

  • JetBoyTRJetBoyTR Member Posts: 17
    Can You send me the link again please Samuel pinches?
  • Samuel PinchesSamuel Pinches Administrator Posts: 1,433
    edited February 28
    Sorry, I was having upload problems at the time - but it was literally a single text file "fan.gcode" with one line "M106 S255;" (without the quotes). Try that and see what happens.
    Post edited by Samuel Pinches on
  • JetBoyTRJetBoyTR Member Posts: 17
    Nothing Happens Actually The LCD Stops Working.
  • Samuel PinchesSamuel Pinches Administrator Posts: 1,433
    Since it works via Pronterface, I would suggest trying to update the LCD firmware. Or, if you are running the latest version, try an older version.


  • JetBoyTRJetBoyTR Member Posts: 17
    I was running the old one I updated still doesn't work.
  • XeS0rXeS0r Member Posts: 4
    I can confirm this exact same issue running the most recent firmware. Fan won't start at second layer. On the display it tells you it's running with 255 but nothing really happens.

    LCD: v3.03
    Board: 1.1.8C

  • Samuel PinchesSamuel Pinches Administrator Posts: 1,433
    Hmmm... I'm very confused by these reports. This doesn’t make any sense.... the LCD has one job, simply to send gcode to the motherboard, it shouldn't be changing anything. You’re saying that when you run that file from a USB drive, it doesnt work, but when printing via USB cable it does?

    Can you set the fan speed using the LCD menu? Does that work at all?
  • XeS0rXeS0r Member Posts: 4
    If I print via usb drive the fan won't start after first layer but on the display it changed from 0 to 255. Using the display to start the fan pressing the 255 button it starts as it should. Haven't tried to send gcode to start fan via usb cable nor printing via usb.
  • Samuel PinchesSamuel Pinches Administrator Posts: 1,433
    edited March 14
    It sounds like this could be a LCD firmware bug, with the most recent MKS TFT28 LCD firmware? Do you want to try downgrading the LCD firmware and see if the problem goes away?


    Post edited by Samuel Pinches on
  • XeS0rXeS0r Member Posts: 4
    md5:
    b5dc3bd4eebdeb095441a72d490651e6  mkstft28.bin
    from JG A5 Custom LCD Firmware - v3.03.zip

    Tell me which one I should try and I will test it. After my kids are sleeping I have enough time to test things out. I will also connect it to the usb and try to send the gcodes.
  • JetBoyTRJetBoyTR Member Posts: 17
    I fixed it if you are using cura go to machine settings change number of fans to 0
    Thanked by 2XeS0r Samuel Pinches
  • XeS0rXeS0r Member Posts: 4
    Should have read the tooltip before changing it... Thanks for the advice.
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