hello, my amp seems to be giving a random click since a while. i dont know how it comes.. the only thing i have noticed is that the fan does not go on directly when i turn the amp on. but this can also be because the fan goes on when the amp gets to hot. i have no equipment right here to test the fan... does anybody know after how much time the fan should go on? and do i heat up the amp if i do not connect any speakers? so i can test is the fan goes on when it gets hot... does the 24volt fan works if i test it with a lower current? or if anybody know were i can find more info... thank you!