EK Supreme HF issue (SOLVED)

[McDown]

Hey guys,
I have a very strange issue with my EK Supreme HF block rev.1. I have this block for quite a while now and never had any problems, but I recently bought a different top for it and now it makes very annoying noise. First I thought it's just a bleeding period, but after 2 days my loop is fully bled and the sound still there. It does sound like some air trapped in the block but more repetitive, almost like a clock and goes away if I turn my rig upside down. But as soon as I turn it back on it's feet the sound back too.

The only change was:
1. new top (red acrylic instead of black acetal)
2. new fittings (EK instead of Bitspower).

P.S. I'm not sure if it's important, but my block mounted upside down too (180º).