Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  
cora111

Fans always on

Recommended Posts

Hi,

I'm observing a new problem of my Ultimaker: The fans are always on. They start instantly with switching on the machine.

I can't alter their rpm any more with the UltiController nor I can't change the speed with Cura. Even when I put "M106 S0" via Cura's command line, the fans don't respond. They're staying on.

I have absolutely no clue what's causing that. Can someone help me please?

 

Share this post


Link to post
Share on other sites

You mean the hot end fan? if that is always in, check the wiring, if it is actually plugged into the right port on the board. if it is always on, the darlington transistor PWM'ing the fan is maybe dead, and needs replacement. you can kill the transistor by shortening the leads to the fan.

the main electronics fan under the printer is supposed to be always on.

 

Share this post


Link to post
Share on other sites

Yes, I mean the hot end fan.

I already guessed I killed something on the pcb by accidentally shortening the leads. *blush*

I want to replace the broken part. Can you help me?

Where do I find the part (transistor) on the board?

And what type of transistor do I need?

Thank you!

 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Our picks

    • How to 3D print with reinforced engineering materials
      Ultimaker is hosting a webinar where we explain how you can achieve and maintain a high print success rate using these new reinforced engineering materials. Learn from Ultimaker's Product Manager of Materials and top chemical engineer Bart van As how you can take your 3D printing to that next level.
      • 0 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!