Hello everyone,
I’m asking the Lemmy: I’ve been the owner of an Ender 3V3 SE since Christmas and am quite happy with the printer so far. The price/performance ratio is good. Minutes. Only the fan noise when you turn on the printer and preheat it for the first 5 minutes worries me. It doesn’t sound healthy. In my opinion, it’s both fans, first the power supply, and when you preheat PLA, the hot end fan as well. When I print, everything sounds as it should.
I’ve included a few video links:
Power supply:
https://loops.video/v/e97ZQ8YsEa
https://loops.video/v/e987R8wBEb
Then I preheat for PLA:
https://loops.video/v/e98jjSpPEe
I’m curious to hear what you think.
Best regards,
Patric
Translated with DeepL.com (free version)


I had the same issue on my E3V3 KE, the 3510 fan had a hard time spinning (free of debris), ordered a new one and replaced it. Had the same issue in the past with other 4010 fans that Creality uses. I think you had a bad fan to start with.
TLDR; Replace it