Jump to content

Temp Sensor Error--HELP

Recommended Posts

Posted · Temp Sensor Error--HELP


I received an Ultimaker 2 Extended a couple of months ago and just recently installed the Olsson block it came with. The temperature sensor in the original block (0.46mm nozzle) was warped out of shape and could not be removed so I installed the spare temperature sensor that came with the printer. Ever since I installed the Olsson block I keep getting ERROR--TEMP SENSOR. It happens randomly for the most part, and Ive checked all of the connections to make sure they were okay. I did notice sometimes when I manually adjust the nozzle temperature to say 210°C, the probe will skyrocket extremely fast then give me the error. I have read solutions to this problem, but none of them seem to work for me. Currently, the printer will not load the main interface--it just keeps popping up with the error. I've tried soft resetting the printer, I did a factory reset whenever I first installed the probe, connections were checked multiple times... I am unsure of what to do from here. Is there possibly something wrong with the printer itself? I read the Cura software can make it not work correctly, but seeing the printer wont even load the main interface, Im assuming this problem stems from a different source. If anyone could help, I would greatly appreciate it.

  • Link to post
    Share on other sites

    Posted (edited) · Temp Sensor Error--HELP

    Do you have a multimeter?  Measure the resistance of the temp sensor underneath the printer (while disconnected from the board).  it should be around 108 ohms.  Most likely somehow must have gotten damaged.  You can get a new one from fbrc8.com (ultimaker original parts) or from my store at gr5.org/store/ (3rd party parts).  I test every temp sensor at 260C because a while back many of them would open up around 200-240C and then start working again when they cooled.  However your temp sensor sounds more seriously broken.  They don't solder the sensor to the wiring inside because solder melts at these temperatures so instead they are crimped and metals expand at different rates when you heat them and so they can fail.  Most fail very early on like yours.  Once the temp sensor has survived a few prints it should survive for years.

    Edited by Guest
  • Link to post
    Share on other sites

    Posted · Temp Sensor Error--HELP

    Hi Mick,

    Do you still have the old nozzle block? If you have, -with the wires intact, try to use this one as it should be ok, hopefully.. Well, you can use a 100 ohm resistor to check that the temperature is reading approx. 0 deg. Celsius. You'll need another resistor at 180 ohm for a hot check, when connected to the board it will show approx. 212 deg. Celsius.

    This is an easy way of checking your main boards response to a resistance equivalent to our PT100 (platinium sensor).

    You have to be very careful when installing the termoistor, do not bend more than once on the wires going into the termistor block.. It is very easy to break, or to make a close break become an intermittent connection as you have.

    Those resistor should be very easy to find at your place.. :)

    But I'll guess you just order a few of those PT100 as spare, -as they fail now and then.

    Good luck.



  • 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...