cutoff crackling

[jbc-arkadii]

Hey everyone!
So after year of using my microbrute i have a serious problem. My cutoff knor is crackling while tweaking it. ((( I am a very carefull user. And there are no mechanical distroy on it. ((( So there are very terrible crackling and even sound goes away at all in cutoff knob position @ 12 o clock. Does anyone know how to fix it?

Thank you everyone)))

[CHFMN]

sounds like it has dirty contacts from dust or whatever... a common issue with knobs and sliders in mixers as well. I'd advise to get some contact cleaner like Deoxit and just spray a tiny bit on the rotary encoder.