How do i fix the amp protection system once it has tripped

I already tried unplugging it and plugging it back in after nearly two and a half hours

hmm there could be just a fault with this amp if it is brand new.. other wise you might have shorten some wires to geather by accident, try taking out all the audio leads accept the power and see what happends..

if the lite doesn't come on then turn the power off and plug one thing in at a time and turn the power on each time you plug something in..

hope it helps good luck