Noise of ac compressor on 2005 Kia Amanti

would the ac compressor still make a noise if the air conditioner is off?

Asked by for the 2005 Kia Amanti
It could make a noise if the clutch on the compressor is really bad. Could it be he drive belt that is making noise? With the engine running when you hear the noise spray a little water on the fan belt and see if the noise goes away. Kia as a car manufacturer put a lot of great technical information and work shop manuals on line for free for Kia owners.