i powered on the amplifier today and the ready light came on on its own without me making any changes at all. however this is only this amplifier the fan races off, reallyy loud compared to the other amplifiers, as soon as its powered on without signal or load. Is anyone aware of this problem? I know for sure the problem with the ready light not turning on was due to overheating. But now its turning on with a loud fan blowing cool air. I tried the amplifier with signal and load and it works as normal however im sure the 'surging' behaviour of the fan is a fault/ a setting that needs to be adjusted.