Sun2000 Grid tied inverter Gen 2 These were the failed components in our first AC short incident. We believe the IGBTs (the 2 components on the right) are the first to fail and as a result, there were damages to other components like the driver chip (lower left) and resistors. Update 10: July 1, 2026. One of the suppliers, Y&H, is now delivering the updated motherboard version (dated 2023-08-09). It is the same one others have already reported last year and mentioned below