Switchboard updated / wiring replaced by an electrician ?
And it changed after that, so looks like that will be the issue, something not wired up as it was ?
If by switchboard you meant meter(s) upgraded, then it could be the networks provider doing the work that are responsible.
As a curiousity, what does you account overview window say where it notes "Solar Status" ?
It should say "It looks like your solar system is active."
Good luck getting it sorted as fast as possible, not good wasting any excess feed to grid . . .
I take it you are getting your daytime power needs covered by production ?
