- New
91365 (Dometic) is a replacement ignition control circuit board for compatible Atwood combination water heaters in recreational vehicles. It manages the electronic ignition of the propane burner and the operation of the electric heating element. The two-stage control board includes a protective fuse, mounting screws and a cover. It is designed for select GCH6A-10E, GC6AA-10E, GC10A-4E and GCH10A-4E water heater models, including compatible XT-series units. Check the existing board connection and water heater model before ordering. Older slide-style connections may require adapter part 92074.