Well my chassis solar panel works fine, but I must have a break in the wire between the roof and the battery compartment where the fuses for the chassis and house solar are located. The wire is only 16 AWG, so fairly small. If I cannot find the problem, I will have to run a new wire down to the battery bay. It looks like the shortest route will be down through the roof vent for the fridge, down behind the rear of the fridge, into the storage area and across to the battery compartment.