Hi.

I have this Fireface 400, bought it brand new for about four years ago, and i use it
everyday for production and sound overall..

The last couple of months, it´s started to make this high irritating frequency noise from inside
the box.. it has nothing to do about the output sound, still sounds and works 100%.
It´s somewhere in the electronics, there is making that noise..
It screams for about 2-5 minutes, and stops.. and then again.. theres is no kind of
pattern, when it´s starts and stops..
The fireface is powered by an extern powersupply, and i also tried to change to another,
but still the same.. tried to move it around, and knock on the top, but nothing helps..

Is there something i can do, and do RME offer a lifetime guarantee on that kind
of hardware problem?

Regs.

Thomas Funck