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PRO+ Troubleshooting Guide

4 min read

3Doodler PRO+ Troubleshooting Guide

My Pen Won’t turn on!

  • Make sure the Power Adapter is firmly plugged into both the wall and the pen.
  • Be sure that the Power Adapter is connected to the correct part of the pen.
  • Be sure to turn the switch on the pen to the ‘On’ position.

My Filament is extruding but it won’t stick to the paper, or it’s curling up around the Nozzle.

  • Push the Nozzle firmly down against the paper, then begin extruding the Filament. This will allow the Filament to stick to the surface.
  • Drag the pen and filament across the surface in a continuous unbroken line as if you were writing with a pencil.
  • Keep your movements slow and steady. The Filament should hold to the paper and not curl up around the Nozzle.

My 3Doodler Pro+ isn’t extruding.

  • Make sure your pen is on the right setting for the Filament you are using.
  • Make sure the strand is engaged with the Drive Gear. Gently push the Strand into the Feed Port until you feel it being pulled by the
  • Drive Gear on its own.If the above does not work, reverse the strand fully from the pen, snip the melted end, then reinsert and try again.In situations where the strand is too short, remove the Maintenance Cover and with the pen turned on and in reverse, try to tease the strand out with your fingers.If it is too short, put the maintenance cover back on. With the pen turned on and heated fully, unscrew the nozzle, then engage the reverse feature. Then insert the Unblocking Tool into the front of the pen to push the short strand out of the feed port.

My Filament is Leaking from around the Nozzle.

This may be caused by a loose nozzle. In this case make sure the pen is hot, and then tighten the nozzle using the tool provided. Do not over tighten it.

My Filament won’t stop extruding.

  • Click the feed button once.
  • If that doesn’t work, turn off and unplug your pen.
  • Wait a few seconds and then plug it back in and turn it on again.

How do I reverse my unused filament?

  • With the pen on and fully heated, click the Reverse Button.
  • If the strand is too short, remove the Maintenance Cover and tease it out with your fingers, the pen should be on and in reverse as you do this.
  • Alternatively, you can insert a new strand of the same filament and feed it through. This will push the small amount of the previous strand in the pen out through the nozzle.

My pen won’t heat up! The light stays red!

Make sure you have selected a filament type on the Menu Display. It takes about 60-90 seconds for the pen to heat up depending on the filament selected. If, after that time, the pen still does not heat up, and the Indicator Light remains Red, turn the pen OFF and then ON, and try again. If that still does not correct the issue, please contact us at help@the3doodler.com.


PRO+ Frequently Asked Questions

What type of filament can be used with the 3Doodler PRO+ pen?

−

The 3Doodler PRO+ pen is designed to use 3Doodler Create+ filament (ABS, PLA, and FLEXY) and 3Doodler PRO filament (WOOD, NYLON, COPPER, and BRONZE). They are straight-cut strands, 10″ long and 2.85mm in diameter. See all available options here.

How do I unclog the 3Doodler PRO+?

+
Make sure your 3Doodler PRO+ is turned on and heated up to the proper temperature for the material in your pen. When the pen is ready, carefully remove the nozzle from the pen with the nozzle removal tool. Once the nozzle is removed, insert the Unblocking Tool in through the pen tip while the reverse function in engaged.

This should push any clogged material out of the back of the pen, clearing any clogs. Note that you can also remove the magnetic maintenance panel for greater access to the feeding mechanism.

If you’re still having issues after trying this, please contact us at help@the3doodler.com and we will be happy to help you troubleshoot your device.

Why is my PRO+ pen having difficulty feeding/gripping a new strand?<

+

The PRO+ pen has a temperature preset for each specific types of filament you can use with it. Typically, we see jams occur when folks aren’t using the corresponding temperature setting for the filament type they select.

If you’re using the correct filament/temperature setting combo, but your pen still won’t feed, try adjusting your speed setting. You can also use your Unblocking Tool and/or remove the magnetic maintenance panel to ensure you don’t have a jam.

If you’re still having issues after trying this, please contact us at help@the3doodler.com and we will be happy to help you troubleshoot your device.

Why did my PRO+ motor stop and the LED turn Red?

+

If you use a material at too low a temperature OR too high a speed, the LED will turn Red and the motor will stop because the device cannot maintain temperature.

If you are experiencing this, wait a moment for the pen to come back to the selected temp. If it persists, please contact our Customer Service Team.

My 3Doodler sometimes makes a slight crackling sound while extruding. Is this normal?

+

If the filament makes a slight crackling sound while extruding, this is totally normal. It is caused by moisture escaping from the strands (that has been caught in the strand since fabrication). This is not dangerous or a cause for concern!

The filament is moving slowly. What do I do?

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Sometimes, when you get to the end of one strand, extrusion slows noticeably. Put a new strand into the back of the 3Doodler pen. If it still extrudes very slowly (or not at all), try giving the new one a little nudge down, and that should do the trick!

How do I remove/re-install the nozzle?

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When removing or re-installing the nozzle on your pen, be sure the device is turned ON and fully heated (never while heating or when OFF). Very little force is recommend or required; we suggest using only your thumb and one finger.

Why are my pen’s buttons not functioning as expected?

+

If your buttons aren’t functioning as intended, please contact our Customer Service team by emailing help@the3doodler.com and we will be more than happy to assist you.

Updated on March 11, 2026

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PRO+ ManualsPRO+ Getting Started Guide
Table of Contents
  • 3Doodler PRO+ Troubleshooting Guide
    • My Pen Won’t turn on!
    • My Filament is extruding but it won’t stick to the paper, or it’s curling up around the Nozzle.
    • My 3Doodler Pro+ isn’t extruding.
    • My Filament is Leaking from around the Nozzle.
    • My Filament won’t stop extruding.
    • How do I reverse my unused filament?
    • My pen won’t heat up! The light stays red!
    • PRO+ Frequently Asked Questions
      • What type of filament can be used with the 3Doodler PRO+ pen?
      • How do I unclog the 3Doodler PRO+?
      • Why is my PRO+ pen having difficulty feeding/gripping a new strand?
      • Why did my PRO+ motor stop and the LED turn Red?
      • My 3Doodler sometimes makes a slight crackling sound while extruding. Is this normal?
      • The filament is moving slowly. What do I do?
      • How do I remove/re-install the nozzle?
      • Why are my pen’s buttons not functioning as expected?
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