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error min temp????

Posted by skaha 
error min temp????
June 26, 2018 08:25PM
Hi hope you can help, I broke the extruder tube so ordered new one, received new tubes, heater block, heater and thermistor, I installed all and now get "error min temp" on the lcd. and neither the bed or the extruder will heat. Any ideas as what I might have done to cause this ?
Thanks for any suggestions you might have.
Terry
Re: error min temp????
June 26, 2018 09:12PM
It sound like you may have shorted the thermister.

What is the Room temperature reading from that thermister?
The software has protection code that will not let it heat if the thermister reading do not change in a given time frame.
Re: error min temp????
June 26, 2018 09:20PM
The room temp is about 22c, the room temp on the lcd is 21c for the bed and 0 for the extruder, changed thermister, same reading.
Terry
Re: error min temp????
June 26, 2018 10:00PM
Double check that the thermister is plugged in correctly.
You can temporally swap the thermister connections Bed to Hot-end and observe LCD did the temperature reading swap places.
If so Return connectors to there correct connector pins, something is wrong with the hot-end thermister.

Post your results
Re: error min temp????
June 27, 2018 01:16PM
When I first start program after changing the thermister and heater I get a notice saying "fatal flaw with printer, minimum temp must be reset. How do I do that?
Re: error min temp????
June 27, 2018 01:41PM
Quote
skaha
When I first start program after changing the thermister and heater I get a notice saying "fatal flaw with printer, minimum temp must be reset. How do I do that?

Can not find anything relating to the error you described.

What 3D Printer are you working on, What firmware.


Computer Programmer / Electronics Technician
Re: error min temp????
June 27, 2018 01:48PM
Hi the printer is a JGAURORA with Marlin firmware.
Re: error min temp????
June 27, 2018 04:07PM
Well I am really screwed now, I put in another thermistor, now my lcd screen is just two lines of square boxes. I emailed the seller asking for the config for the machine, he replied right away with the file in the form of an adobe attachment hex file, I have no idea how to open or use the file.
Re: error min temp????
June 27, 2018 04:34PM
The simplest way to upload a compiled .hex file without the IDE

[forum.arduino.cc]


Computer Programmer / Electronics Technician
Re: error min temp????
June 27, 2018 08:38PM
I was able to stumble my way thru it and everything works again, thankyou for your patience .

Terry
Re: error min temp????
June 27, 2018 09:33PM
you are Welcome.

Do you have a way of sending G-codes
In Cure 15.04.6 You can Send a M503 to a USB connected Printer.

The Results of a M503 below, You may recognize the numbers. This Information you will get will be from your working 3D Printer will be most of the information you will need to setup Marlin 1.1.8

This is only a Sample of a M503 This information is for a Different 3D Printer
SENDING:M503
; config override present: /sd/config-override
;Steps per unit:
M92 X80.00000 Y80.00000 Z80.00000
;Acceleration mm/sec^2:
M204 S750.00000 Z0.00000
;X- Junction Deviation, Z- Z junction deviation, S - Minimum Planner speed mm/sec:
M205 X0.02000 Z-1.00000 S0.00000
;Max feedrates in mm/sec, XYZ cartesian, ABC actuator:
M203 X500.00000 Y500.00000 Z500.00000 A500.00000 B500.00000 C500.00000
;Optional arm solution specific settings:
M665 L382.3000 R202.9250
;Digipot Motor currents:
M907 X0.80000 Y0.80000 Z0.80000 E1.70000
;Home offset (mm):
M206 X0.00 Y0.00 Z0.00
;Trim (mm):
M666 X-0.329 Y-0.110 Z0.000
;Max Z
M665 Z529.600
;E Steps per mm:
M92 E426.0000 P57988
;E Filament diameter:
M200 D0.0000 P57988
;E retract length, feedrate:
M207 S3.0000 F2700.0000 Z0.0000 Q6000.0000 P57988
;E retract recover length, feedrate:
M208 S0.0000 F480.0000 P57988
;E acceleration mm/sec²:
M204 E5000.0000 P57988
;E max feed rate mm/sec:
M203 E65.0000 P57988
;PID settings:
M301 S0 P34.7000 I2.8100 D104.0000 X255.0000 Y255
;Max temperature setting:
M143 S0 P280.0000
;PID settings:
M301 S1 P210.0000 I7.1020 D1553.0000 X255.0000 Y255
;Max temperature setting:
M143 S1 P140.0000
;Probe feedrates Slow/fast(K)/Return (mm/sec) max_z (mm) height (mm):
M670 S5.00 K100.00 R0.00 Z529.60 H5.00


After you print Your M503 Save all the Numbers this will allow anyone to help you if you ever decide to upgrade to Marlin 1.1.8 with Auto Bed Leveling.

Edited 3 time(s). Last edit at 06/28/2018 11:10AM by Roberts_Clif.


Computer Programmer / Electronics Technician
Re: error min temp????
June 28, 2018 02:31PM
Thank you again, I will print this off.
Terry
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