Second server that I am having issues with the fan. The first one wasn't under warranty and I didn't have support from the vendor to fix it. I ended up damaging it when trying to understand what was going on and how to fix it. This one now is new and it's already the third fan with issues. In the first two occurrences with this server, the vendor sent me new fans. I am intrigued that two different servers ended up having the same issues. The consequence of the issue is that the fans operate at higher RPMs, making a very loud noise. It shouldn't be dust. A server's fan doesn't support home-level dust?! It's also not connected to the power line directly. It's powered by a sinusoidal no-break. It's a minor problem that causes a lot of headache. The error is shown below. 2026-07-13 14:18:01 2054 FAN0001 Fan 2 RPM is less than the lower critical threshold.