Review on WFCO Electronics WF8935PECB Converter Charger by David Stewart

Replace the block in my RV that is no longer charging the battery. I drew a schematic, numbered each wire before disconnecting, removed the old block and installed a new one. You have to take your time. Take a break if you get sick, come back later, study the drawing, take a photo of the wiring before disconnecting. All of that helps. When the last wire is connected, connect the wires to the battery, connect the RV to DC, and turn off the switches. Now switch on the interior lighting. Wait an hour and then check the battery charge. If everything works, jump and scream for joy!