- New
91365MC (M.C. Enterprises) is a 12-volt replacement ignition control circuit board for compatible Atwood and Dometic RV water heaters. It manages the ignition sequence for propane heating and, on compatible combination models, coordinates the electric heating function. The plug-and-play replacement design includes the appropriate connectors and two mounting screws. It is intended for selected gas/electric water heater models, including GC6AA-10E, GC10A-4E, GCH6A-10E and GCH10A-4E. Confirm the water heater model and existing circuit board number before ordering.