The fan is really noisy.
The fan has been noisy in this machine for quite some time, and seems to get worse over time. When I say noisy, I don’t mean that it is running at high speeds. It just doesn’t sound right when it runs, even at low speed. It almost sounds like it has a bad bearing. I’ve opened up the machine and everything looks clean, and the fan blades look good. I’m not sure what to do. Can I replace the fan? Should I?