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Robertoho

Are there different versions of PT100 temperature sensor?

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After having lot of problems with our (about 4 year old) UM2 that stopped extruding material during printing - in my opinion due too cool nozzle - I bought the "Hot End Bundle" from Ultimaker to fix that.

The hot end bundle contains the PT100 temperature sensor and all the parts like nozzle-block, PTFE-Coupler, spring and so on.

It was not too much effort to replace all these parts. But after starting up and trying to "heatup nozzle" (maintenance menue) I've got an error message "ERROR - STOPPED Temp sensor" at the display.

I retried 5 times and it is persistent: I can heat up the nozzle to 150°, to 170°, to 180° without any problem - but as soon I go over 180° that same error appears. Not before and not after that temperature. What seems very strange to me!

I also noticed that the temperature sensor looks a little bit different: The tip of the new sensor is round while the tip of the old sensor is flat. No further difference, both sensors fit perfectly in the same new nozzle block.

I tried again the old sensor and it works. I could even do a print with the old sensor. (The problem was that it always worked for a while - 30 minutes or 5 hours or whatever - before the problem occurs and extrusion stopped somewhen.)

Edited by Guest

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