Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  
rrctelles@hotmail.com

Several fan failures

Recommended Posts

Hi guys,

I'm new to the forum and to 3D printing as well. I just got my UM2 last wednesday and have been trying to play with it, but I have been having problems from day one.

First of all, my printer came with a defective left fan. I tried to get a replacement but only managed to get a different model. The guy who sold me it mistakenly gave me a 7V fan instead of a 12V fan. As I connected it both fans died out and apparently my fan pwm connector fried (although there were no visible signs), since the 7V seems to have pulled a lot of current.

So...

Question 1: Is it possible that the pwm output fried? I've probed it with a multimiter and nothing connected, but sending 100% fan speed from the menu, and got 20V. Nevertheless the replacement fans I got did not work. I tried also setting the pwm to 50% and connecting the working fan to it but it did not work as well. If it fried, can it be fixed, is it fused, etc;?

Later I got two 12V fans and connected it to a 24V outlet on the board in order to get anything printed, since without the fans the prints were coming out to hot and deformed. It's been working ok for the last couple of days, but today suddenly the back fan stopped working mid print. :cry: I've read that it stays on as long as the printer is on, and some people even complained about the noise.

Question 2: Can it be that this fan was damaged because I plugged the others in the power outlet? I tested the fan externaly and it really is the problem (the blue and orange wires are supplying 5V normally). I can't believe I'm having a second fan failure in a week for no good reason...

 

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  

Announcements

  • Our picks

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 14 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 17 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!