Just an update...was able to talk with some folks 'in the know' on how to determine where my problem was (with my inverters reading overload, even after changing the house batteries). After disabling the output and rechecking for an overload indicator, it's clear the board or something on the inverter is bad. This is a Freedom 25/24 that is at least 15 years old...maybe more. So...I've got a new trace 36/24 on the way.

So best I can tell...the swap out doesn't look like it'll be too bad...any thoughts or suggestions as I approach this next week?

--the inverter should be here today...since I've never done this..anyone have any suggestions or guidance on how best to change/swap these? Anything to be aware of?