<p>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.</p>
<p>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.</p>
<p>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.</p>
<p>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.</p>
<p>What is going on?</p>

[{'answer_id': 19609, 'author': 'Mandias', 'author_id': 34495, 'author_profile': 'https://3dprinting.stackexchange.com/users/34495', 'pm_score': 1, 'selected': False, 'text': '<p>Since I have been unable to find a way to fix the E3D V6 clone hotend I have instead replaced it with a Creality Mk 8 that I had on-hand, which has so far worked flawlessly.</p>\n<p>I am assuming that the improved performance is related to the use of a shorter nozzle and/or the Bowden tube butting directly against the nozzle instead of interfacing with an all-metal heat-break. Those seem to be the biggest differences between the two designs.</p>\n'}, {'answer_id': 19726, 'author': 'Dayclone', 'author_id': 27003, 'author_profile': 'https://3dprinting.stackexchange.com/users/27003', 'pm_score': 0, 'selected': False, 'text': "<p>I had issues with my all metal hot-end where I got heat creep. I ended up doing e-steps, PID tune, and ensuring my speed wasn't too slow either. Is your printer in an enclosure? I found that mine being in an enclosure caused the hotend to not cool sufficiently, so I had to lower the hot bed temp by 10 degrees and that seems to have resolved my issue for heat creep. I also have the Hero Me fan housing which improves airflow.</p>\n"}]
['https://3dprinting.stackexchange.com/questions/19577', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/34536/']