Description
The Reznor 209973 Flame Sensor is a genuine OEM replacement part designed to help ensure safe and efficient combustion in Reznor gas‑fired heating equipment. This flame sensor detects the presence of a flame during operation and sends a signal to the control board to confirm proper ignition. Without a working flame sensor, a heater may fail to run properly or shut down prematurely for safety reasons.
Key Features
- Genuine OEM Part: Designed by Reznor for exact fit and dependable performance as a direct replacement.
- Reliable Flame Detection: Monitors burner flame presence to confirm combustion and ensure safe operation.
- Improved System Safety: Helps prevent unsafe running conditions and supports proper shutdown if flame is not detected.
- Durable Construction: Built for commercial and industrial HVAC environments where long‑term reliability matters.
- Easy Replacement: Direct sensor replacement that minimizes service time and restores ignition performance.







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