About a year ago my control panel (above the door) for the Xantrex Prosine inverter stopped working. Completely dead. I removed it and tested it with a short comm wire direct to the inverter in the basement. Dead. I found a recycled control panel on eBay, connected it direct in the basement. Dead. Charging function and everything else continued to work, I just couldn’t control anything From the control panel, most importantly, the inverter.
Last night I was ordering a new Magnum inverter and I thought I should check the controllers one more time. Connected both with an new comm wire in the basement. THEY BOTH WORKED!! The problem must be the comm wire originally installed.
Does anyone know how this wire is run on a 98 Marquis. At the inverter it disappears in to the frame rail, then comes out above the door. It’s very tight. Maybe I can duplicate the route.