121-710

This high-quality Mercury Flame Sensor is an essential safety component for gas furnaces and HVAC heating systems. Designed to monitor the presence of a flame within the burner assembly, this sensor prevents hazardous gas accumulation by signaling the system to shut off the gas valve if no flame is detected during the ignition cycle. Common symptoms of a failing flame sensor include the furnace turning off shortly after lighting or failing to start altogether. This durable replacement part ensures your heating equipment operates efficiently and safely, providing reliable thermal detection and long-lasting performance in demanding high-heat environments.
Type: Flame Sensor Rods
Size: Small
Application: Used in gas furnaces and residential HVAC units to monitor burner ignition and ensure system safety during the heating cycle.
Specifications: Mercury-actuated thermal detection rod designed for high-temperature resistance and precise signal transmission to furnace control boards.