Corsair h100i gtx not cooling

[labcoattech]

Hi all, seem to be having an issue with the Corsair h100i GTX not cooling the CPU, thought it may have been the thermal paste so replaced it which didn't help. I took off the copper block and noticed it was hot so looks like it has an air block as I can hear the pump spinning.

Any ideas on what's the best method of removing the air block?

 

[doyll]

Airlocks can usually be removed by moving system around like on it's side, upside down, etc. Sometimes shaking helps too. All an airlock is is a air bubble in the flow cycle stopping coolant from moving past it.
How old is it? Often the pump motor will run but not pump coolant.

 

[labcoattech]

it's 2 years old, thanks, i'll give it a try and let you know.