Carrier LH33CM018 Flame Sensor for Spark Ignition Systems

The Carrier LH33CM018 is a flame sensor designed for use with spark ignition systems in residential and light commercial gas furnaces. This safety component detects the presence of flame during the burner cycle, ensuring safe furnace operation by verifying ignition has occurred before allowing gas flow to continue.

Key Features:

• Genuine Carrier OEM replacement part
• Direct replacement for worn or failed flame sensors
• Works with spark ignition systems
• Critical safety component that prevents unburned gas hazards
• Designed for reliable flame detection and signal transmission

Flame sensors are common maintenance items in gas furnaces, as they can become coated with carbon deposits or corrode over time, leading to intermittent or failed ignition. Regular inspection and replacement of the flame sensor helps ensure safe, reliable furnace operation throughout the heating season.