Usb amp fans come on when it off, and go off when it is on?

Soldato
Joined
20 Oct 2002
Posts
17,920
Location
London
Because my Marantz amp is in an enclosed cupboard I have a couple of good usb fans on top of it. I've had this a couple of times before but can't remember how I resolved it..

I turned everything off but could hear the fans running. I turn the amp back on and they turn off. What's going on? :confused: As soon as I turn the amp off they kick in :confused:

I tried yanking them out whilst the amp was on in hope of 'resetting' it but no joy..
 
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