I have a load noise coming from the area of my a/c compressor yet my a/c still works fine,but the noise is almost unbearable. I have the noise when the a/c is off as well as on.
The noise might be coming from the compressor clutch bearing.
If it is, and the bearing siezes it will damage the compressor housing. This then would require that the entire compressor assembly be replaced. If there’s a clutch kit available for the compressor, and it’s installed in time, it will prevent damage to the compressor.