RV Power Converter Troubleshooting | RV Repair Club Jun 16, 2015RV distribution center troubleshooting can show whether the electrical problem is in the wiring, the outlet, or the circuit breakers, which service the electrical system that feeds into your appliance. I have a 1994 Winnebago Brave with a Magnetek Power Plus model 6345 converter. Recently, I heard the cooling fan running louder than normal