noice comes and go when the aircondition is on

1992 honda accord the noise sounds like the fan is hiting the housing.
so I try to turn off the a/c the loud noice is gone. my a/c are workin fine.
anyone got this problem b-4 I'd already change my alternator.

Sounds like the A/C (condenser) fan is shot. I had that happen, and found that the fan blade assembly was rattling around loose in the housing! It could also be the fan motor.

Sounds like the A/C (condenser) fan is shot. I had that happen, and found that the fan blade assembly was rattling around loose in the housing! It could also be the fan motor.
but the fan is not moving at that time .

Where is the noise coming from?

I found the noise on the a/c compressor. its gone right @ this moment.

Well, it sounds like you've already identified where the problem is. Good luck.

Well, it sounds like you've already identified where the problem is. Good luck.but not the solution.
No noise been heard ever since Thankz!