For what it's worth-Dick Wright with Wrico International offers and suggests the Magnum pure sine wave inverter. Since I have just 12v, I'm restricted to the 2800 watt-but it also has twin 30amp pass through. You might want to upgrade to a pure sine wave also. Good Luck, TomC
I already have pure sine wave with my Prosine 3.0. The Magnum MS4024 will be my choice if I can't get this one working.
I took my Prosine 3.0 inverter apart last night and can't see anything obviously wrong with it like I put it together wrong. My friend who has some electronics expertise will be over Thursday night to look at it again.