Hotend thermistor problem
I´ve assembled my MINI+ printer last week and after calibration it worked for a couple days. But today when i wanted to use it it came up with the error "The measured value does not match the expected. Check thermistor." when heating the nozzle before printing. Heating to 170° works, it gets to the "Probing points" part and even the self checks are fine, the error occurs somewhere between 190° and 200°. What could be the problem?
Best Answer by shingdoh:
Apparently the thermistor was either positioned wrong or the screw was too lose and it slid out. I´ve now pulled it out a bit to where it sticks out a millimeter on the cable side (Which seems too much when i look at the pictures here: https://help.prusa3d.com/guide/how-to-replace-a-hotend-thermistor-mini-mini_147001 . But it works). Anyway, it can get up to printing temp now, and as a bonus, the prints turn out better than before (less stringing) and it smells less.
RE: Hotend thermistor problem
Apparently the thermistor was either positioned wrong or the screw was too lose and it slid out. I´ve now pulled it out a bit to where it sticks out a millimeter on the cable side (Which seems too much when i look at the pictures here: https://help.prusa3d.com/guide/how-to-replace-a-hotend-thermistor-mini-mini_147001 . But it works). Anyway, it can get up to printing temp now, and as a bonus, the prints turn out better than before (less stringing) and it smells less.