I think Madrat could be right.
Remove wand/hose and you'll find 2 15TX screws. Remove them and give the top 2 plastic lugs a small tap. This will remove the switch housing.
Do a "con check" from plug to switch. If OK, put the switch in the "on" position and do another con check across the switch.
Up to this point, if everything is fine, it's highly unlikely it's the cable between the switch and the motor.
You'll have to strip the machine to get to the motor so you might as well con check said cable just in case.
I'm sure there will be a motor change thread on here to change a DC14 motor. If not, there is very little difference to a DC07 motor change.
If it comes to a motor change, DO NOT buy a cheap and nasty motor off ebay, they are sheeiitee!
I'd say try to find an MTR240 motor in Aus. If not, hope that MVACS has some left and can send you one. If not, spend the dosh and get an original Dyson one. DC14's and DC07's are the ones Dyson got right and are worth keeping going!
DC33's were alright but I hated the plastic wand.
Oh, by the way, Good Morning!