Description
Reznor 210766 2nd Flame Sensor for 42–60″ Burners
The Reznor 210766 is a genuine OEM replacement second flame sensor designed specifically for Reznor 42–60″ burner assemblies. Engineered to maintain precise flame detection across the full burner length, this sensor works in tandem with the primary flame sensor to verify stable, consistent combustion — helping protect equipment, occupants, and the overall heating system from unsafe operating conditions.
Key Features
- OEM Reznor replacement part — ensures proper fit and function
- Designed for use with 42–60″ Reznor burner assemblies
- Second (2nd) flame sensor provides additional flame verification across longer burner spans
- Supports safe combustion monitoring and reliable burner shutoff if flame is not detected
- Direct drop-in replacement minimizes downtime during service calls
- Built to Reznor’s exacting quality and performance standards
Application
- Compatible with Reznor 42–60″ burner (BNR) configurations
- Ideal for commercial and industrial heating systems utilizing Reznor infrared or radiant tube heaters
- Suitable for replacement during routine maintenance or after flame sensor failure
Why Replace Your Flame Sensor?
A faulty or degraded flame sensor can cause nuisance lockouts, failed ignition sequences, or — more critically — allow unburned gas to accumulate. Replacing a worn sensor with a genuine Reznor part restores proper flame-proving performance and keeps your heating system operating safely and efficiently.
Ordering Information
- Brand: Reznor
- Part Number: 210766
- Description: 2nd Flame Sensor, 42–60″ Burner







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