H&K Grandmeister 36

[ghtransam79]

Hi there,
I have recently bought a new H&K Grandmeister 36.
Really pleased with it, I have noticed that it makes a slight noise when im not playing,
a sort of fluttering noise is the best way I can explain it, can anyone shed any light on this.
I have been told that it could be the valves?
I have done all the obvious things like changing leads ect.
Any suggestions,
Graham.

 

[beej]

Not too much we can do to help on the EBMM forum. Best bet is to ask H&K.