So, lights dead, indicator light dead, motor dead.
By "3 pin supply" one assumes you mean the 3 pin socket on the wall is live.
All that suggests there's no power getting from the 3 pin plug into the extractor.
One assumes you've checked the fuse in the plug. It'll probably be a 3 or 5 Amp, not 13 Amp.
Are there any fuses inside the extractor itself? Probably not but worth a thought.
And you've ordered a new motor but not checked the old one? Hopefully you can return the new motor if it turns out not to be needed.