Question My AIO Liquid Cooler is making voices like it is cutting something

[EArpaz]

Guys i bought my case like 7 months ago and there wasn't any problem but last days my AIO cooler started to make sounds like it is cutting something i stopped all fans in my case but it was'nt from the fans can someone help me what can it be?

 

[EArpaz]

And if you ask me how i know that its from the cooler i listened the voice carefully and it is from liquid cooler