darsben1 wrote:
The Lights going dim could be a sign of a bad ground either at the battery or the 12 volt panel or If on battery could be a large load coming on line causing the dimming if running off battery
Where you running off battery or on shore power?
Yes, #1 check all your battery connections for clean and secure. DON'T forget where the ground wire connects to the frame.
If battery is in good shape, and ground connections are solid, likely your converter/charger is going bad. If it is WFCO, most likely going bad, replace with a Progressive Dynamics unit of the same or slightly larger size and be done with it.