Mintemp Error-Heater ID 0


What is the problem?
Mintemp Error-Heater ID 0
What did you already try to solve it?
Poped out the SD card and it works all day. As long as I don't have the SD in when logging in it works. Corrupt SD?

Changing monitoring state from "Offline" to "Detecting serial port"
Serial port list: ['/dev/ttyUSB0']
Connecting to: /dev/ttyUSB0
Changing monitoring state from "Detecting serial port" to "Opening serial port"
Connected to: Serial<id=0x6dd543d0, open=True>(port='/dev/ttyUSB0', baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=10.0, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor
Starting baud rate detection
Changing monitoring state from "Opening serial port" to "Detecting baudrate"
Trying baudrate: 115200
Send: N0 M110 N0*125
Recv: start
Changing monitoring state from "Detecting baudrate" to "Operational"
Recv: echo: External Reset
Send: N0 M110 N0*125
Recv: Marlin
Recv: echo: Last Updated: 2015-12-01 12:00 | Author: (CR-10Slanguage)
Recv: Compiled: Dec  5 2017
Recv: echo: Free Memory: 1204  PlannerBufferBytes: 1232
Recv: echo:Hardcoded Default Settings Loaded
Recv: echo:Steps per unit:
Recv: echo:  M92 X80.00 Y80.00 Z400.00 E93.00
Recv: echo:Maximum feedrates (mm/s):
Recv: echo:  M203 X300.00 Y300.00 Z5.00 E25.00
Recv: echo:Maximum Acceleration (mm/s2):
Recv: echo:  M201 X1000 Y1000 Z100 E5000
Recv: echo:Accelerations: P=printing, R=retract and T=travel
Recv: echo:  M204 P500.00 R500.00 T1000.00
Recv: echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s),  Z=maximum Z jerk (mm/s),  E=maximum E jerk (mm/s)
Recv: echo:  M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
Recv: echo:Home offset (mm):
Recv: echo:  M206 X0.00 Y0.00 Z0.00
Recv: echo:Material heatup parameters:
Recv: echo:  M145 M0 H185 B0 F0
Recv: echo:  M145 M1 H240 B0 F0
Recv: echo:PID settings:
Recv: echo:  M301 P22.20 I1.08 D114.00 C100.00 L20
Recv: echo:Filament settings: Disabled
Recv: echo:  M200 D3.00
Recv: echo:  M200 D0
Recv: echo:SD card ok
Recv: Init power off infomation.
Recv: size:
Recv: 591
Recv: init valid:
Recv: 0
Recv: 0
Recv: ok
Send: N1 M115*39
Recv: FIRMWARE_NAME:Marlin 1.1.0 From Archive SOURCE_CODE_URL:http:// ... PROTOCOL_VERSION:1.0 EXTRUDER_COUNT:1 UUID:00000000-0000-0000-0000-000000000000
Recv: ok
Send: M21
Recv: echo:SD card ok
Recv: ok
Send: M20
Recv: Begin file list
Recv: echo:Cannot open subdir
Recv: WIN7����
Recv: Error:MINTEMP triggered, system stopped! Heater_ID: 0
Changing monitoring state from "Operational" to "Error: MINTEMP triggered, system stopped! Heater_ID: 0"
Changing monitoring state from "Error: MINTEMP triggered, system stopped! Heater_ID: 0" to "Offline (Error: MINTEMP triggered, system stopped! Heater_ID: 0)"
Connection closed, closing down monitor

Connecting octoprint to Creality CR10S4 trips out the printer

May I ask what printer you have and did you try another SD card?

Edit: just saw in the log, it's a CR-10


Funny, @BigBjoern posted a very similar log a while ago - same error, down to the subdir one on the SD.

A MINTEMP error is triggered by your firmware when it detects something to be off with the measured temperatures. Since too low or too high a temperature can mean the the thermistor is broken, a lot of firmwares have defined min and max values and trigger such an error when the read value is outside that considered sane range.

It's odd though that your error goes away when you eject the SD card. Sounds like a firmware bug that causes a MINTEMP to be wrongfully triggered on a broken SD? Odd... In any case, if ejecting the card fixes it, swap the card. Or leave it out.


Sorry for the slow "Solution" SD Bin out since I have had it. Ya Octoprint