OEM Carrier Flame Sensor LH680534 (Replaces LH33WZ521) for Model PG92SBS60080CBAA

This OEM flame sensor with lead is the factory-authorized replacement for the Carrier PG92SBS60080CBAA gas furnace. The flame sensor — also called a flame rod or flame rectifier — is a critical safety component that proves to the control board that ignition has been successfully established. When the sensor's rod becomes oxidized or contaminated, it can no longer pass sufficient microamp current, causing the control board to shut the gas valve off as a safety precaution. The most common symptom of a failed flame sensor is a furnace that fires up normally but shuts off after just 5–8 seconds, then repeats the cycle 2–3 times before locking out.

• OEM Part Numbers: LH680534 (current) | LH33WZ521 (superseded) — both are covered by this listing. Includes pre-attached lead wire for direct plug-in installation.
• OEM vs Generic: OEM flame sensors are calibrated to the exact microamp threshold required by your Carrier control board. Generic aftermarket rods may read inconsistent current signals, causing nuisance lockouts even after cleaning — defeating the purpose of replacement.
• Install Difficulty: 2/5 — Turn off gas and power before beginning. Tools needed: 1/4" hex driver or 5/16" nut driver to remove the single mounting screw, needle-nose pliers, and a multimeter to verify microamp draw (1.5–4 µA DC typical). Always disconnect the lead wire before removing the sensor from the burner assembly.
• Warranty: 1-year OEM manufacturer warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG92SBS60080CBAA 92% AFUE gas furnace and related Carrier, Bryant, and Payne models that specify LH680534 or LH33WZ521. Verify your existing part number on the sensor body or unit wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today.