This is because the converter doesn’t handle the amp draw like a battery does. The converter puts out 12v even without a battery most of the time but when a load is applied, even a small one, the lights will dim. This is usually more of a problem when there is a weak battery or no connection to the battery. I assume that it has to do with the converter…any thoughts? Reply We have a brand new Duracell gel deep cycle battery. Even when plugged into a 30 amp shore power. We just bought a ” new to us” travel trailer…a 2010 Heartland and the 12 volt lights cycle between bright and dim on a regular basis, especially when there’s a big 12 volt load. Δ 13 Responses to “RV Electrical Systems Overview: Distribution Center” Mail (required) (will not be published).Once you have taken a look at the electrical system, you will be able to further determine where the power issues are coming from. Newer models have the distribution center with the circuit breakers and 12-volt fuses in an accessible location, but the 12-volt converter is separate, usually tucked away in a cabinet or underneath in basement models. They were loud and put out a tremendous amount of heat. Older RV electrical systems had the distribution center and 12-volt converter together in one location. On the 12 volt side of the RV electrical system you can diagnose an electrical problem by using a meter and testing each fuse connection to ensure there is enough power going through each one. However, verify there is not a short in the RV electrical system that connects to this breaker prior to replacing it. If a breaker will not reset, it could be a worn or defective breaker. This means it will not reset and stay up. Look for any signs that the breaker is blown. Flip the breakers on and off checking to ensure they are crisp and not sloppy.
When self-diagnosing an issue with RV electrical systems you will want to start by checking the circuit breakers. If there is something not working properly that is hooked up to RV electrical systems it is possible to conduct some quick diagnostics to determine the cause of the problem. In most units you will also see the automotive style fuses that operate the 12 volt system such as the stove and lights on the inside of the unit. In there you will see the circuit breakers that operate the air conditioner, microwave and refrigerator. To get a better idea of the type of RV electrical systems used in your unit, take a look inside the distribution center. Though most are similar, RV electrical systems can vary among different units. The distribution center is where the fuses and circuit breakers are located and where the power is rerouted to the appliances and the converter for 12 volt electric sources. Once connected to an outside power source the power coming into your unit is routed through RV electrical systems and distribution centers.
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