Description
The Noritz SBC7685-B is an OEM replacement flame rod with gasket, engineered specifically for compatible Noritz tankless water heaters. The flame rod is a critical safety and performance component in the combustion system — it continuously monitors the burner flame and sends a signal to the control board to confirm ignition. If the flame rod fails or becomes fouled, the unit may shut down as a safety precaution, resulting in no hot water. Replacing it with a genuine Noritz part restores proper flame sensing and reliable operation.
Key Features
- Genuine Noritz OEM replacement part (SKU: SBC7685-B)
- Includes matching gasket for a leak-free, secure installation
- Designed for precise fit and function in compatible Noritz tankless water heater models
- Restores accurate flame detection and safe burner operation
- Helps prevent nuisance shutdowns caused by faulty or degraded flame sensing
- Manufactured to Noritz OEM specifications for long-lasting reliability
Application
- Direct OEM replacement for compatible Noritz tankless water heater units
- Recommended when the unit displays flame-sensing error codes or fails to stay lit
- Suitable for professional HVAC and plumbing technicians performing service and maintenance
Installation Notes
Always verify compatibility with your specific Noritz model before ordering. Refer to the unit’s service manual for proper torque specifications and gasket seating procedures. It is recommended that this part be installed by a qualified service technician to ensure safe and code-compliant operation.







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