- Chassis Battery drained to low. May need a non smart charger to bring back up to full charge.
- Fridge would seem to be independent, as lights on equal power to outlet.
- If you have not started the disconnect yet. Look for Reset buttons on the unit, and if the unit has fuses for AC, make sure none of them have tripped. The Reset is not quite the same as CTRL-ALT-DEL, more of like just a software refresh - which often clears up a confused control board
! (At least that is how it is on the Freedom SW 3012 series. (I've no experience with Prosine 3000 - if that is the unit you have... But, the 3012 was the follow on, so may some similarities.)
Will follow the thread, and hope it all clears up and that the chassis come back to life for you... Sure, diminished life - but better then needing to replace now
!
Best,
Smitty