I connected two small 300W inverters to the load output of my SmartSolar 100/20. These draw about 16A (8A each), and are working ok.
What is not working at all is the load output control. It is stuck on. I can’t turn it off by any means.
I unplugged the jumper - this allowed the state on the app to toggle between on/off, but the whole time there was output on the load terminals.
I tried setting Rx pin to remote on/off - no difference
Streetlights are turned off.
I’ve tried toggling between the other load output schemes, various restarts, etc.
The current/power measurement is also wrong - flickers between 0 and a small value like 4W, when in fact 600W are being drawn.
This post is remarkably similar: https://community.victronenergy.com/questions/78878/victron-bluesolar-mppt-10020-load-output-is-always.html
So I’m wondering if these inverters could have fried the MOSFET that switches the load?
Quite disappointing if so - brand new charger fried. Seems like a protection diode would have kept the circuitry safe.
Is there anything else I could try before I return it to Amazon?
Thanks!