[gcode Attached] Ender 3 Nozzle and Bed Temp Maxed Out

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1

I've been having issues with Temp sensors on my Ender 3. Can't seem to figure out why my nozzle temp is stuck at 229 degrees Celsius and bed temp is stuck at 191.

I've replaced Thermistor, Heating Element, and checked for poorly soldered pins/bad connections.

Changing monitoring state from "Offline" to "Detecting serial port"
Serial port list: []
Changing monitoring state from "Detecting serial port" to "Error: Failed to autodetect serial port, please set it manually."
Failed to autodetect serial port, please set it manually.
Changing monitoring state from "Offline" to "Detecting serial port"
Serial port list: [u'COM3']
Connecting to: COM3
Changing monitoring state from "Detecting serial port" to "Opening serial port"
Connected to: Serial<id=---, open=True>(port='COM3', 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
Recv: start
Send: N0 M110 N0*125
Changing monitoring state from "Detecting baudrate" to "Operational"
Recv: echo: External Reset
Recv: Marlin 1.1.6.2
Recv: 
Send: N0 M110 N0*125
Recv: echo: Last Updated: 2018-11-28 | Author: (Ender-3)
Recv: echo:Compiled: May 24 2019
Recv: echo: Free Memory: 10078  PlannerBufferBytes: 1232
Recv: echo:TF init fail
Recv: echo:TF init fail
Recv: ok
Send: N1 M115*39
Recv: ok
Send: N2 M21*18
Recv: Error:Line Number is not Last Line Number+1, Last Line: 0
Recv: Resend: 1
Recv: ok
Send: N1 M115*39
Recv: FIRMWARE_NAME:Marlin Creality 3D SOURCE_CODE_URL:https://github.com/MarlinFirmware/Marlin PROTOCOL_VERSION:1.0 MACHINE_TYPE:Ender-3 EXTRUDER_COUNT:1 UUID:cede2a2f-41a2-4748-9b12-c55c62f367ff
Recv: Cap:EEPROM:1
Recv: Cap:AUTOREPORT_TEMP:1
Recv: Cap:PROGRESS:0
Recv: Cap:PRINT_JOB:1
Recv: Cap:AUTOLEVEL:0
Recv: Cap:Z_PROBE:0
Recv: Cap:LEVELING_DATA:0
Recv: Cap:SOFTWARE_POWER:0
Recv: Cap:TOGGLE_LIGHTS:0
Recv: Cap:CASE_LIGHT_BRIGHTNESS:0
Recv: Cap:EMERGENCY_PARSER:0
Recv: ok
Send: N2 M21*18
Recv: FIRMWARE_NAME:Marlin Creality 3D SOURCE_CODE_URL:https://github.com/MarlinFirmware/Marlin PROTOCOL_VERSION:1.0 MACHINE_TYPE:Ender-3 EXTRUDER_COUNT:1 UUID:cede2a2f-41a2-4748-9b12-c55c62f367ff
Recv: Cap:EEPROM:1
Recv: Cap:AUTOREPORT_TEMP:1
Recv: Cap:PROGRESS:0
Recv: Cap:PRINT_JOB:1
Recv: Cap:AUTOLEVEL:0
Recv: Cap:Z_PROBE:0
Recv: Cap:LEVELING_DATA:0
Recv: Cap:SOFTWARE_POWER:0
Recv: Cap:TOGGLE_LIGHTS:0
Recv: Cap:CASE_LIGHT_BRIGHTNESS:0
Recv: Cap:EMERGENCY_PARSER:0
Recv: ok
Send: M105
Recv: echo:TF init fail
Recv: echo:TF init fail
Recv: ok
Send: M155 S2
Recv: ok T:231.00 /0.00 B:190.45 /0.00 @:0 B@:0
Send: M155 S2
Recv: ok
Send: M105
Recv: ok
Recv: ok T:231.00 /0.00 B:190.45 /0.00 @:0 B@:0

Fresh install of OctoPrint on Windows 10, Ender 3X, Brand new Heating Element and Thermistor.

This is the Error I get when I try to preheat

Your printer's firmware reported an error. Due to that OctoPrint will disconnect. Reported error: MAXTEMP triggered, system stopped! Heater_ID: bed - Printer halted. kill() called!

2

Hi @bridge9 !

What does the printer display tell you? Is it normal room temperature? Or the same high values?
Have also checked for short circuit?

https://reprap.org/wiki/Thermistor

and

3

"They are pretty much bomb proof, really hard to damage them"

= false

People routinely break the thermistor packaging/leads because the package is fragile.

1 Like
4

Screen displays same info OctoPrint does. Room temperatures are normal. When I unplug either of the thermistors from the board, temps do not read any different or change at all.

5

It seems that the firmware is badly messed up.
Or the board has an issue.

1 Like
6

Or the thermistors are plugged into the wrong connectors (or the wrong connectors are referenced in the firmware).

1 Like
7

What board would you guys recommend me getting to replace this Creality one?

8

Don't ask me, I'm like Tim Allen.

9

I would recommend a 32 bit board. And here is brand new tutorial: