Hi. The cooling fan on my AVR300 has been starting up over the last few days.This is probably due to the hot weather here as i have not been 'pushing' the amp,just watching Sky+ at around 50 - 60db. Has anyone had the fan start up on their AVR300 ? Did the fan turn itself off after a while ? I felt the unit later on and it seemed cool as it should be but the fan remained on until i switched the unit off.