hi, i recently replace my stock hotend with e3d v6. I keep heater and termistor as it is. After a while i needed to replace original thermistor with 100K NTC B 3950 because i accidently broke the original one. In marlin firmware i try all of the thermistor options available but no luck. Seller confirms that thermistor is 100K NTC B 3950 . i measure resistance at 21 degrees is around 103 khms and voltage between cables around 2.3 V. so it seems no defect Any ideas to help me ? Temperature sensors available: * * -5 : PT100 / PT1000 with MAX31865 (only for sensors 0-1) * -3 : thermocouple with MAX31855 (only for sensors 0-1) * -2 : thermocouple with MAX6675 (only for sensors 0-1) * -4 : thermocouple with AD8495 * -1 : thermocouple with AD595 * 0 : not used * 1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup) * 331 : (3.3V scaled thermistor 1 table for MEGA) * 332 : (3.3V scaled thermistor 1 table for DUE) * 2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup) * 202 : 200k thermistor - Copymaster 3D * 3 : Mendel-parts thermistor (4.7k pullup) * 4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !! * 5 : 100K thermistor - ATC Semitec 104GT-2/104NT-4-R025H42G (Used in ParCan & J-Head) (4.7k pullup) * 501 : 100K Zonestar (Tronxy X3A) Thermistor * 512 : 100k RPW-Ultra hotend thermistor (4.7k pullup) * 6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup) * 7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup) * 71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup) * 8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) * 9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup) * 10 : 100k RS thermistor 198-961 (4.7k pullup) * 11 : 100k beta 3950 1% thermistor (4.7k pullup) * 12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed) * 13 : 100k Hisens 3950 1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE" * 15 : 100k thermistor calibration for JGAurora A5 hotend * 18 : ATC Semitec 204GT-2 (4.7k pullup) Dagoma.Fr - MKS_Base_DKU001327 * 20 : Pt100 with circuit in the Ultimainboard V2.x with 5v excitation (AVR) * 21 : Pt100 with circuit in the Ultimainboard V2.x with 3.3v excitation (STM32 \ LPC176x....) * 201 : Pt100 with circuit in Overlord, similar to Ultimainboard V2.x * 60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950 * 61 : 100k Formbot / Vivedino 3950 350C thermistor 4.7k pullup * 66 : 4.7M High Temperature thermistor from Dyze Design * 67 : 450C thermistor from SliceEngineering * 70 : the 100K thermistor found in the bq Hephestos 2 * 75 : 100k Generic Silicon Heat Pad with NTC 100K MGB18-104F39050L32 thermistor * 99 : 100k thermistor with a 10K pull-up resistor (found on some Wanhao i3 machines) * * 1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k. * (but gives greater accuracy and more stable PID) * 51 : 100k thermistor - EPCOS (1k pullup) * 52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup) * 55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup) * * 1047 : Pt1000 with 4k7 pullup * 1010 : Pt1000 with 1k pullup (non standard) * 147 : Pt100 with 4k7 pullup * 110 : Pt100 with 1k pullup (non standard) * * 1000 : Custom - Specify parameters in Configuration_adv.h * * Use these for Testing or Development purposes. NEVER for production machine. * 998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below. * 999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
So, i ordered a new thermistor still same problem. By the meantime i tested mainboard input for nozzle thermistor with a potentiometer, it is reading resistance changes. I can heat up but it starts from 108 degree and goes up.
solved, same issue as below. https://www.reddit.com/r/CR10/comments/i36u11/cr10_max_nozzle_and_bed_temps_are_sitting_at_300/
