Atwood Dometic 91365 Water Heater Control Board Kit — OEM 12 VDC Replacement for 6 & 10 Gal Models, Restores Ignition & Temp Contr

This kit contains the original equipment manufacturer (OEM) control circuit board designed for Dometic and Atwood gas/electric water heaters. It replaces the aging or failed controller in 6 and 10 gallon models to bring back proper ignition sequencing, stable temperature regulation, and consistent hot-water availability. Because it is a factory direct part, it ensures correct fitment and helps maintain the safety and performance standards expected for your unit.

Which water heater models will this circuit board fit?

The 91365 control board is built for specific Dometic and Atwood gas/electric tanks. It’s intended for the common 6- and 10-gallon models used in RVs and mobile installations, ensuring electrical connectors and mounting points align with the original factory configuration.

• Compatible models: GCH6A-10E, GC6AA-10E, GC10A-4E, GCH10A-4E
• Also fits: WH6GEA, WH10GEA, WH16GEA, WH9GEA
• Direct OEM replacement—no modification needed
• Designed for 12 VDC gas/electric heater systems

How does replacing the board improve my heater’s performance?

Older or damaged control boards can produce inconsistent ignition, incorrect temperature cycles, or intermittent heater shutdowns. Installing the OEM board restores the designed firing logic and thermistor/thermostat communication so the unit runs on its intended control parameters.

• Restores consistent heating cycles and reliable ignition
• Reduces false lockouts and unexpected shutdowns
• Improves temperature regulation and hot-water consistency
• Prevents improper behavior caused by aftermarket substitutes

What are the practical advantages of choosing the OEM kit over a generic part?

OEM parts are engineered to match factory tolerances, connector pinouts, and safety controls. Choosing the genuine Dometic/Atwood board lowers the risk of fitment problems, wiring errors, and control mismatches that can occur with non-OEM substitutes.

• Factory-direct fit and compatible electrical interfaces
• Meets original safety and performance design criteria
• Reduces installation time—plug-and-play replacement
• Helps preserve warranty coverage and long-term reliability

How easy is installation and what should I check after replacement?

Installation is straightforward for anyone familiar with water heater servicing: disconnect power, remove the access panel, swap the board, and reattach harnesses. After installation, verify ignition sequence, temperature response, and that there are no error codes or fuel flow interruptions.

• Power down and disconnect battery before starting
• Confirm harness connectors and mounting tabs match securely
• Test ignition, thermostat response, and gas valve operation
• Check for leaks, proper venting, and steady flame behavior

Who is this for: The Atwood / Dometic OEM control circuit board kit 91365 is ideal for RV owners, technicians, and fleet managers maintaining Dometic or Atwood 6–10 gallon 12 VDC gas/electric water heaters. It’s for anyone needing a dependable, factory-correct replacement to restore original performance and safety—and who prefers OEM reliability over aftermarket guessing. If your unit shows ignition faults, intermittent heating, or control errors, this kit returns the water heater to the manufacturer’s intended operation.