m17 R4, weird fan noise, possibly CPU fan

Hello, I have a M17 R4 and recently there's been a weird noise coming from the left side of the laptop. When doing a pre-boot system performance check I got a "Fail PSA V4400 21 Error 2000:0511 Validate Code : 117402 Fan - The (CPU Fan) fan failed to respond correctly."

The noise is grating and it seems to happens when the fan starts to pick up speed. While my laptop still works, the noise is annoying and I worry that the problem might get worst. Even dusted off the fans a bit and the noise still continues. 

Here's a video of the noise: https://streamable.com/wbsx81