Hey guys,
I bought a used Anycubic Vyper yesterday for €80. Seller said “private sale, no refunds,” so yeah… I’m stuck with it.
Yesterday everything worked perfectly. I printed a Benchy and it came out great. But today, when I started another print, the printer suddenly froze. Fans stopped, screen didn’t respond, nothing.
I tried a few things:
swapped the hotend (looked a bit crusty, thought maybe cables were bad)
reconnected all visible cables
restarted it multiple times
After that, it got worse. Now when I turn it on:
sometimes the screen turns on but doesn’t respond
sometimes it freezes on the Anycubic logo (no startup sound)
fans spin for a second and then stop
Important detail:
When I turn the printer OFF, I hear a short crackling/electrical noise from the power switch or power input. It does NOT happen when turning it on, only when turning it off. I opened it a bit and I’m pretty sure it’s coming from that area. I also tried a different power cable, same issue.
The previous owner said it had no problems.
I’m 16 and don’t have money for big repairs, so I’m hoping it’s something simple. Also, I don't want my dad finding out that it is broken.
Any ideas what this could be? PSU? Switch? Mainboard? And is it safe to keep testing it?
Thanks 🙏