I got myself a usb scope.
I found that the egs002 wasn’t giving the correct wave. On outputs 1 and 2. And output 3 was a constant 6v. Not a wave at all. Got another egs002 (before getting the scope). And that had one dead output.
Attatched is a schematic for the egs002. And the h bridge. Which although not for my inverter, is identical