Control Board Kit (W/ 2 Screws)

Rheem RTG20319W Control Board Kit – OEM Replacement for Tankless Gas Water Heaters

The Rheem RTG20319W is a factory-authorized replacement control board kit designed specifically for select Rheem and Ruud tankless gas water heaters. This main PCB (printed circuit board) regulates burner ignition, system diagnostics, temperature control, and safety operations. It is a direct replacement part, ensuring full compatibility with the original equipment.

This kit includes the control board and mounting screws required for installation. Designed to meet original performance specifications, it is intended for use in systems where the main PCB has failed due to electrical faults, component wear, or signal loss.

Application and Function

• Model Number: RTG20319W
• Component Type: Main control PCB (printed circuit board)
• System Role: Manages ignition sequence, sensor input, fan operation, and water flow communication
• Compatible Units: Rheem and Ruud branded residential tankless gas models (check service documentation for model compatibility)
• Kit Contents: 1 replacement board, 2 mounting screws

Installation Guidelines

This control board should only be installed by qualified personnel familiar with electronic diagnostics and tankless system wiring. Power must be fully disconnected before replacement. After installation, verify that DIP switch settings, ground wiring, and connector seating match factory configuration to ensure proper system operation.

Important Considerations for Technicians

• Use only with models approved for the RTG20319W – installation in incompatible units may cause system failure.
• Inspect all associated wiring and sensor leads during replacement; corrosion or short circuits may impact performance.
• Reset and test the unit using the diagnostic LED or remote controller, if applicable, to confirm functional readiness.

Summary

The Rheem RTG20319W control board kit is an essential service component for restoring function to compatible Rheem tankless gas water heaters. It is manufactured to OEM specifications and supports full electronic control of the unit’s ignition and heating sequences. For accurate troubleshooting and replacement, always refer to the product’s technical service manual.