So I bought this cooler about 2 months ago and it has been working great.. Since a few days ago it's been making this very loud noise that I've attributed to the pump. I heard that it's usually an airbubble and I just wanted to know if that is the case and if so how to get rid of it. I'm not sure since it's been running fine since I installed it and I don't know much about these things. The weird thing is I got the sound to stop for like 10 seconds one time when I slightly moved my pc after turning it on. I've tried to redo this and I've had no luck. The cooler still works well (getting idle temps of low 30s), but the noise is very loud and I'm just kind of worried something else may be wrong. Is there anything I can try to fix this? I can get some audio of the noise if that would help. Thank you.