Errr.... yeah. Sorry for your ordeal, but that's not a new phenomenon. SWWP has usually required you to ship them the entire (bulky, heavy) unit, which they will repair (or not) at their leisure. I know people whose Whispers were out of commission for six months. The installer who helped set up my home system had given up on SWWP; he said of their sales staff, "Their technical ignorance is exceeded only by their arrogance." He was a listed dealer but couldn't get parts. And boy, did those machines need parts. Wyoming plays hell on small wind turbines.
Anyhow, I had heard that they were getting better, but maybe not. They are throwing all the company's weight behind the Skystream residential turbine, which does seem to get pretty good company support and field repair (too heavy to ship back?) I'll wager smaller units like the AirX are being marginalized.
BTW, I own the small Bergey, and while it's useless for boating and certainly has its own (serious) reliability issues, I can vouch for the people & company behind it. For the five years under warranty, all I had to do was call them and say "Igor, I need another stator/rectifier/slip ring assembly," and one would appear about four days later. No charge, no questions asked. Main fuse kept burning out; they sent a circuit breaker. It kept kicking, they sent an inline resistor to brake the turbine. Blades roots tore out, they mailed new sets. Guy wire fatigued thru, they sent a new tower section. Entire turbine fell off pole, they shipped a new unit. Dodgy wind genny, honest people. I cost them a fortune!
ALL wind turbines break. That's part of the ownership experience. What matters is the company behind them. Sounds like SWWP is still disappointing customers. BTW, the new Kestral
models intrigue me; the mid to large sizes have passive blade pitching, which is the best governing method. & the company is owned by Eveready, which has some serious engineering money to throw around. The E150 may be too heavy for all but the biggest cruisers; don't know if it's marinized, either.