MEXICOWANDERER wrote:
Kudos dougrainer for excellent detective work.
Most pass through inverters use a sad printed circuit board DPDT relay. A separarte full size frame relay rated 30 amps like a GTE brand found on eBay is easy to wire and will outlast a circuit board relay 50 to 1. Enclose in a box. Use the normally closed contacts as the power pedestal circuit and the magnetic closed circuit for the inverter.
This is a fun project. I've done many of them to resurrect failed pass through perverters.
NOT detective work. I KNOW what the **** I am doing:B I worked (we also sold) on National from 1993 until 2006 when they went under and Newmar also used the Dimensions model 400 watt 18 years ago and we also sold and I serviced them then. Still do. Doug
MY experience is because I have been in the RV service business for 38 years and I DO remember OLDER systems.