@sunshine_eggo Reading the latter part of this thread, I'm wondering if that inverter somehow got let out of the shop in a non-default configuration that has it set up in frequency control mode. Perhaps because there's nothing for it to vary, when the voltage gets close faster it tries to ramp down the non-extant AC coupled SCCs, which does nothing, so it basically drops to minimum as if a switch was flipped. Sure, a brand new one
shouldn't be able to do this, but I've learned to trust very little when it comes to complex electronics.
Any way to perform a full factory reset to standard defaults without a controller panel?