I bought a generator. Before the warranty ran out, it needed parts. It then blew up and I have asked for a refund under Australian Consumer Law. They said I used it wrong?
If it was under warranty when it blew up and they can't point to hard evidence of how you apparently used it incorrectly, they are bound by their warranty under Australian Consumer Law. I would send them a letter of demand, demanding that they fix or refund the generator within 7 days otherwise you will involve Consumer Affairs or take them to VCAT.
Its needed parts? Did you get someone else to install those parts? Were the parts issued by the manufacturer? That is something I would be asking? Did they put the parts in and then it blew up?