Ender 3-part cooling fan not working – Steps to fix it

Many printers, especially those in the Ender 3 series, have fans that help to keep the components from overheating.

Unfortunately, sometimes something could go wrong and your ender 3 part cooling fan might not be working properly.

Various solutions are available, and you can explore different methods in this article to fix this problem.

What happens if the Ender 3 part cooling fan stops working?

If your 3D Ender 3 printer’s part cooling fan stops working, it can have a major impact on the accuracy and detail of your 3D prints.

Without a functioning part cooling fan, your filament has less time to cool down before the next layer is extruded on top.

This leads to warping and misalignment of layers – an effect that becomes increasingly worse as the print progresses and you end up with an inaccurate and failed final product.

To ensure better performance, always make sure that your part cooling fans are running properly and replace them if necessary.

Steps to fix Ender 3-part cooling fan not working:

If your Ender 3-part cooling fan isn’t working, don’t panic – a few simple steps will quickly help you troubleshoot the issue and get it up and running again.

  • First, make sure the fan is properly connected to the correct pins on your board.
  • Check the wiring harness for any breaks or damage.
  • If everything looks good but the fan still won’t power on, try swapping out any suspected failing components on your mainboard for new ones.
  • Replace the PWN driver with a new one and check your mosfet for shorts or opens.
  • Make sure to double-check all cabling connections when replacing parts and go slow – careful diagnostics are key!

When to replace Ender 3-part cooling fan?

Replacing the part cooling fan in your Ender 3 can be a last resort and tedious way to get it working again, these days.

After all the various troubleshooting steps have been exhausted, it may seem like an endless process with no end in sight.

However, by ensuring the correct replacement part is found and any new components are within spec of the original ones, you can be certain that you will finally have your Ender 3’s fan working as normal once again.

Some of the Ender 3/V2/Pro Part cooling fans are below:

Noctua NF-A4x10 5V, Premium Quiet Fan

The Noctua NF-A4x10 5V is a premium quiet fan designed for the Ender 3 3D printer. It is a highly optimized and very efficient cooling solution that has been specifically tailored to meet the unique needs of this 3D printer model.

The Noctua NF-A4x10’s outstanding performance is made possible through its high-speed motor and advanced airflow design, which together offer a maximum airflow of 31.01CFM while staying remarkably quiet, ensuring an even and silent working environment.

Its four mounting points, slim design and slim depth make it incredibly easy to install and, combined with its long service life, low power consumption and minimal vibrations, makes it the ideal choice for 3D printing enthusiasts who value not only superior performance but also whisper-quiet operation.

Noctua NF-A4x20 FLX, Premium Quiet Fan

The Noctua NF-A4x20 FLX is a premium quiet fan that brings enthusiast quality cooling to the Ender 3. It’s the perfect solution for users who need extremely quiet performance, but still require maximum cooling efficiency.

The Noctua NF-A4x20 FLX features four low noise blades that ensure minimal air turbulence even at peak speeds as well as vibration dampening elements for quieter operation.

For enhanced airflow and better acoustics, this premium fan also features solid metal construction with adjustable median speed and low starting voltage options. 

Noiseblocker BlackSilent Fan XM-1-40mm

If you’re looking for a quiet but effective part cooling fan for your Ender 3 3D printer, then the Noiseblocker BlackSilent Fan XM-1-40mm could be the right fit.

An ingenious design combines rubber dampers along with aerodynamic elements to ensure that this fan operates almost inaudibly at 22dBA.

Noiseblocker BlackSilent Fan XM-1-40mm (Personal Computers)

List Price:
New From:
$16.30 In Stock
Used from:
$11.28In Stock

The blades are designed to minimize air turbulence, ensuring optimal efficiency from the powerful 0.14A motor.

With a lifespan of up to 200,000 hours and certification from CE/TUV/UL/RoHS, this fan is both reliable and safe to use.

It’s not hard to see why the Noiseblocker BlackSilent Fan XM-1-40mm is one of the go-to choices when it comes to improving your Ender 3 printer’s performance with minimum noise pollution!

Bheema Shankar
Author | Website

I am Bheema Shankar. I have worked on SLS, CJP, DLP, SLA and FDM technologies at Think3D. Currently working as Process and application engineer at VEER-O-METALS PRIVATE LIMITED. I am always fascinated by the process of creating things layer by layer. This fascination led me to pursue a career in 3D printing technology. I am passionate about how 3D works and enjoy exploring new ways to improve the 3D printing process.

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