62-23543-01 Furnace Flame Sensor - Pack of 4

Key Features

• Monitors burner flame to ensure safe furnace operation.
• Signals the control system to shut off the gas valve if no flame is detected.
• Constructed from durable stainless steel and a ceramic insulator.
• Features a 90-degree bend for proper positioning in the flame path.
• Package contains four individual flame sensors.

Replaces / Cross-Reference Part Numbers

• 62-23543-01
• 62-23543-02
• 62-23543-03
• 62-23543-04

Compatibility & Fitment

• Designed for select furnace models from Rheem, Ruud, and Weatherking.
• Verify compatibility by matching the part number with your existing sensor or service manual.

When to Replace

• Furnace ignites but shuts down after a few seconds.
• Visible corrosion or carbon buildup on the sensor rod that cannot be cleaned.
• Furnace control board displays a diagnostic error code for flame sensor failure.

Installation Tips

• Disconnect electrical power and shut off the gas supply to the furnace before beginning installation.
• Handle the new sensor by its ceramic base to avoid transferring oils from your skin to the metal rod.
• Ensure the sensor rod is correctly positioned to be engulfed by the burner flame for accurate sensing.
• Confirm all connections are secure before restoring power and gas.