The Rinnai Circuit Board Control, part number 205000056, is an OEM replacement control board designed for use in compatible Rinnai ES38 direct vent heater models. This electronic control board manages ignition sequencing, burner modulation, safety monitoring, and overall heater operation. As a factory-authorized component, it is engineered to restore proper system control and communication within the ES38 heating unit.
This control board is intended as a direct replacement part when servicing a malfunctioning or failed original board. Installation must follow Rinnai service procedures and should be performed by qualified personnel to ensure correct wiring connections and safe system operation. Proper installation is critical for maintaining ignition reliability, safety shutdown functions, and consistent heating performance.
What’s Included: One Rinnai 205000056 OEM circuit board control for ES38 heater.
Installation Limits: For use only in designated Rinnai ES38 direct vent heater models; installation must follow manufacturer service instructions and applicable electrical and gas appliance safety standards.
Compatibility: Compatible with Rinnai ES38 direct vent heater models requiring circuit board control part number 205000056.
