Can't find the convertor book says under clothes closet but not there . switch to 110 outside sorce thumps but batteries are dead and they are new, any help Thanks Jimmy
First find MAIN DC Dist Panel......has all the 'house' DC Individual circuit Fuses Close by/behind it/next to it would be the converter
Question..... Whenever I read 'new batteries' I have to ask Did you mark battery cables prior to removal, if not did you trace battery cables prior to connecting to new battery.
If connected backwards.......'reverse polarity' fuses (30A or larger on converter) blow to protect converter electronics If blown ---no DC from battery OR from converter when on AC
Transfer switch. Possibly mounted to the back of power distribution panel. Check for circuit breaker adjacent to the batteries. possibly battery disconnect in disconnected mode or bad. Try turning them off then back on.