Issues with solar controller - fuses
We have a 2018 Thor Aria 3601.
We recently purchased new house and chassis batteries, and added 400 more watts of solar. Everything worked for a week, then we got this error on the solar controller which indicates it is not recognizing the batteries. We called the guy who installed the solar and he said most likely we need to change the 30 amp fuse between the controller and the battery.
See pictures... we changed the 30 amp next to the controller, and we changed the 30 amp fuse next to the chassis batteries. Nothing changed. We attempted a reset on the controller, still get the error. We can't find another 30amp fuse. I called Thor and they gave me this schematic of where it is, but could not give me any exact location of where to find it. We have looked under the slide, pulled the drawers out of the bedroom cabinet, looked high and low, checked in the wardrobe and can not locate anything.
Any suggestions? At our witts end, and frustrated.