Thanks for th ereply Jayden.
in this case the only CB was the Solar inverter, all other CBs working ok.
I attempted to reset the CB and the results is zero power to inverter.
My option is to check to make sure the CB for the Solar Inverter is working or needs replacement.
but if the Inverter is damaged due to black out or potetially damaged by voltage surge, how am i to go about this?
Thanks again.