What do the different LED colors mean on the PRO+ pen?

The color of the indicator light helps to convey different things.


A Red light will display when heating up or when a setting is not selected (Note that the pen will not heat up until you select your filament type and speed)
A Blue light will display when feeding on a pre-set temperature mode
A Green light will display when you are in a custom mode
A Flashing Blue light will display when reversing on a pre-set temperature mode
A Flashing Green light will display when reversing in custom mode

Category: Pro

Related FAQs

  • Where can I buy the PRO+ Pen Set?

    The PRO+ Pen Set is available for purchase via our North American Store and Amazon USA.

  • Can I leave the plastic in the pen when I turn the pen off?

    Please don't! We've found that leaving warm plastic in the pen accelerates the degradation of the plastic and can cause issues with the pen over time.

  • What do the various LED lights mean for the 3Doodler Start?

    The LED turns SOLID RED when the pen is warming up. The LED turns SOLID GREEN when the pen has heated up and is ready to use. The LED SLOWLY FLASHES GREEN when the pen is feeding. The LED QUICKLY FLASHES GREEN when the pen is reversing. The LED SLOWLY FLASHES ORANGE when the pen has a low battery. The LED QUICKLY FLASHES ORANGE when the pen is charging. The LED turns SOLID ORANGE when the pen is fully charged. If your pen's LED is FLASHING RED please contact our friendly customer support team by emailing us here: