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I just acquired a new Creality Ender 5 Pro. It was assembled very easily. Today I tried my first print - the Dog demo that came on the MicroSD just to see how it worked. It is a 2.5 hour print.

While I was preheating there was a thermal runaway error while I was feeding the filament up through the tube. I restarted the machine and began the print. The error repeated 6 more times during the print. Each time I reset the machine by cycling the power (there were no instructions for a reset) and I was able to resume the printing.

I have been sitting here while this thing goes so as to be able to restart if necessary. It will be a real drag when I try to print anything larger. I feel as though I cannot leave the machine alone.

The bed seems to hold steady at 45 °C. The nozzle is set to 200 °C (the default on the display) for PLA. It seems to lag a bit sometimes going as low as 196 °C. I suspect this is normal as it is being fed cold filament. When I restart almost immediately, the nozzle starts with a temp of about 140 °C and takes a few minutes to get hot enough to resume the print.

What is going on?

agarza
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Desertgeek
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2 Answers2

3

Possible reasons for the error:

  • Temperature sensor does not connect well;
  • Wrong working (mains) voltage, and;
  • Bed soldering.
0scar
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wanderland1990
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Today, after several failed attempts at another part including "failure to heat" errors, I checked the voltage setting on the controller and found it to be at 230 V. I never looked at it when I assembled the machine 3 days ago. Shame on me!

Setting it to 115 V fixed the issue and my parts ran without interruption.

Many thanks to wanderland1990 for the answer, this led me to the solution.

0scar
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Desertgeek
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