#Thermal runaway

1 messages · Page 1 of 1 (latest)

prime reef
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Hello everyone,

I have this error with my printer after a few minutes of printing. I changed the thermistor for a new one, but still have this error.
Does any one know how to fix this?

IMG-20230429-WA0002.jpg
blazing spruceBOT
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AI Help

Hello! Sorry to hear you're having trouble with your printer. It sounds like you may be experiencing a thermal runaway error, where the temperature of the hotend is not being maintained properly. This can happen if the thermistor is not properly connected or if there is an issue with the heating element or controller. Here are some things you can try:

  1. Make sure the thermistor is properly connected and there are no loose wires. Check the connection on both the thermistor and the control board.
  2. Test the heating element with a multimeter to make sure it is functioning properly.
  3. Check if the firmware on your printer is up to date, as newer versions may have addressed the issue.
  4. If none of these solutions work, it may be worth consulting with the manufacturer or a professional technician to determine if there is a larger issue with the printer.

I hope this helps! Let me know if you have any further questions.

WARNING: This response is AI generated and may contain errors.
prime reef
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I have a creality cr-10s and i am using cura as slicer.
The filament is PLA 1,75 mm

elfin hare
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Make sure you didn’t break the glass on the therm or wire

blazing spruceBOT
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round willow
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Does it read any temperature when it's fully cooled down? This will usually match the bed temperature sensor quite accurately. If they don't match, the sensor isn't working properly. If they do match, your heater may not be functioning (properly)

tired token
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a second let me read

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plug printer into pronterface

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and constantly monitor temperature

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and then send graph after runaway is triggered

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sounds like a thermal overshoot due to sh*t PID tunes/broken electronics

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@prime reef

round willow
tired token
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"a few minutes of printing" means print goes fine and is halted by runaway

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goes fine = proper heating (not low temp)

round willow
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Oh. I must've missed that part, sorry.

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I apologize, I suck at reading even at 250% scale.

tired token
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xd

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its fine, just saying

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low temp isnt the issue

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3 main suspects: PID tuning, fried mosfet (constant heating), thermistor issues

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too much overshoot during heating can also cause runaway

round willow
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overheating would have a different error

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that'd reach maxtemp

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but that's a long way above 200c

tired token
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overheating can also trigger thermal runaway

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maxtemp is triggered when the thermistor shorts as 0 ohm

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and mintemp is when thermistor is not detected (no reading)

round willow
tired token
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most likely runaway

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its PLA, unless he had his maxtemp set to 200 or something

round willow
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Max temp is at 280+ for the e3

tired token
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but runaway will trigger faster than maxtemp if its continued heating without permission

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at least thats what I experimented with my marlin 2.0.9

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i shorted the hotend heater cartridge directly onto the psu, and didnt tell firmware to heat

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temp rised 20c and then triggered runaway (i told it to go to 200, after passing 220 runaway triggered)

digital moss
tired token
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i suggest change to Capricorn

digital moss
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capricorn is still ptfe, same max temp

tired token
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it goes higher

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to 240c

digital moss
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capricorn is just a brand, it has better toloerances but still just ptfe, and will make fumes at the same temps

tired token
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it has less friction

round willow
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It doesn't care about the Teflon tube