Dell G3 15 CPU fan grinding noise

Hi! Looking for some advice on my laptop. It is relatively new (about 4 months old) and recently the CPU fan has begun making a very strange grinding noise. I have opened it up and cleared out all the dust I could find but the noise continues. The noise seems to respond to movement eg. a light slap on the body to the right of the track pad. It’s probably worth noting that I recently replaced the screen on my laptop and the noise begun a few days / a week after that. Any help would be greatly appreciated

Recording of noise: https://soundcloud.com/lil_lanky/fan-noise-g3/s-ccwBc

Laptop Model : Dell G3 15 3000