[NiHaoMike]

The solution to the failure prone power electronics in consumer equipment is not to get rid of them, but rather to make them not so failure prone. That means spending a few dollars more for better quality/higher rated parts, which is something the profit-seeking OEMs rarely do in a market that is so tightly bound to price.

As for us, we can use surplus VFDs originally designed for commercial and industrial use. They're built to last and in the event one does fail, it's pretty easy to keep spares.