Jump to content

Thermo sensor replacement


Recommended Posts

Posted · Thermo sensor replacement

So, my fault, trying to remove the noozle the thermo sensor got broken.

I decided to replace both sensor and noozle.

Problem is i really do not know how to connect a new sensor, i mean, i don't see where the wire is ending and i am a little afraid in disassembling my printer.

Any suggestion?


  • Link to post
    Share on other sites

    Posted · Thermo sensor replacement

    You can have a look at this:


    And download the build manual for the um2 which is very usefull (everybody should have this downloaded)



  • Link to post
    Share on other sites

    Posted · Thermo sensor replacement

    I don't recommend replacing the nozzle. It's a very strong part and you are unlikely to damage it. If you cant get the sensor out and you don't mind destroying the sensor you can drill it out, or use a wood screw, insert it partly in and then pull it out with pliers. Or you can drill from the opposite side a smaller hole and then push it out with a paper clip.

    You can build your own sensor with any pt100 part but if you use solder make sure you use high temperature (all lead 300C) solder and not normal (200C melting point) solder.

    As far as the other end of the sensor - remove the larger cover underneath the UM2. It's very easy to remove (in fact the entire UM2 is very easy to take apart and put back together - it is designed to be hacked). The temp sensor wire is very distinct - it is a white braided cable with two conductors. And it is connected to I believe "temp 1" or some similar name.


  • Link to post
    Share on other sites

    Posted · Thermo sensor replacement


    thanks for your suggestions, always precious, but i really think the easiest way is to put new components. I learned on my skin how i have to be careful with different materials. The sensor was really melted on the noozle, and i mean it, i tried to remove it bringing noozle temperatute up to 260° but there really was no way. I am mounting the new one easier to remove for future issues. By the way i buyed new components yesterday and had no shipping confirmation, wrote to sales for an update and had zero response, i was hoping customer care to be more efficent. The status on my order page says they are ready to ship. Kind of surprised by the lack of assistance.


  • Link to post
    Share on other sites

    Posted · Thermo sensor replacement

    So are you all set now? Do you know where to connect the wiring? Take off the larger cover underneath the printer. The circuit board has writing on it to make everything understandable.


  • 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
    • Our picks

      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    • Create New...