hi mate the fan comes on straight away as soon as the machine is plugged in mate
the when the trigger is pulled you can hear the wire feed mechanism so 2 morrow ill listen at the machine and see which switched on when trigger squeezed .
Bear in mind output will only be live when contactor has contacted.ill whip the cover off 2 morrow spark plug and ill take a picture . ill see if i can find my multimeter to see if theres voltage at the out put MMT.TR cheers for that matey
there is a guy selling one on ebay the same model etc he says it will work on a 13amp plug I find it hard to believe as the machine does have a 16amp plug fitted to the machine on the pics hes posted on ebay .