The RBI 62632007 Boiler Flame Sensor is a critical safety and monitoring component designed for RBI boilers and compatible HVAC heating systems. It detects the presence of a burner flame during operation and continuously signals the control system to verify proper combustion. If no flame is detected, the sensor helps initiate a safety shutdown to prevent fuel accumulation and potentia... https://www.partshnc.com/62632007-rbi-boiler-boiler-flame-sensor