my z2 makes this loud buzzing or idk what to call it noise from the unit its not all the time but its enough that it is getting on my nerves can anyone tell me what this might be..........everything else workis fine with it but this noise is killing me

my z2 makes this loud buzzing or idk what to call it noise from the unit its not all the time but its enough that it is getting on my nerves can anyone tell me what this might be..........everything else workis fine with it but this noise is killing me

If it's coming from the unit itsself, perhaps the fan ?

If it's coming from the unit itsself, perhaps the fan ?

It is coming from inside the unit its like a loud eeeeehhhhhhh noise hard to describe