Question can i fix psu fan grinding noise with compressed air?

[Dexxly_uk]

I have had this issue for a while now and i just wanted to know if it could be dust or if i need to replace the psu due to a bad fan bearing, The psu is very dusty so it could be that it is very loud and makes clicking and car engine like noises at lower rpm mainly when cold .

 

[USAFRet]

Replace.

The 'noise' is almost certainly from worn bearing surfaces.

Cleaning it may reduce some of the noise, though. Turbulent air over the uneven dusty surface may be contributing to the noise.

 

[Dexxly_uk]

yes and it also blue screens if it has any impact and also it don't power on if there has been no wall power for a while