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Arctic LFII 360 Air in pump?

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Take it apart and test the motor separately if you’re comfortable doing that , the sound is like something is rubbing inside , or motor coils though very unlikely to be that loud , otherwise just get another one they are doomed to fail , pumps are the biggest weakness in water cooler
 
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Why not RMA it?
 
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I am not sure what do you mean, all pumps make some noise and there has to be some air in the loop because the liquid expands as it heats up.
 
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I am not sure what do you mean
I'm looking for help I want be sure it's air in the loop, if yes I sent this on RMA. I ask because maybe someone have same problem and know how help. I don't know how remove this air from closed loop
 
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Power Supply Super Flower Leadex Gold 650W
Mouse Razer Basilisk V2
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You can't remove the air from AIO coolers.
I can't check your video right now but have you tried to install the radiator on the top to ensure air doesn't get stuck at the pump part?
 
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