Supco FLS201 Universal Flame Sensor Rod

The Supco FLS201 is a universal flame sensor rod designed for use in gas furnaces and heating systems. This flame sensor detects the presence of a flame during the ignition cycle and sends a signal to the control board to keep the gas valve open, providing a critical safety function that prevents gas from flowing when no flame is present.

Key Features:

• Universal design fits most residential gas furnaces
• Durable stainless steel construction resists corrosion and high temperatures
• Direct replacement for worn or corroded flame sensors
• Includes mounting hardware for easy installation
• Standard 1/4-inch diameter sensor rod

When a flame sensor becomes coated with residue or corroded, it may fail to detect the flame properly, causing the furnace to shut down during the heating cycle. Replacing a faulty flame sensor with the FLS201 restores proper furnace operation and ensures safe, reliable heating performance.