OEM Carrier Flame Sensor LH33WZ521 / LH680534 for Model PG92SCS48060BAAA

This is the genuine OEM Carrier flame sensor — stocked under part numbers LH33WZ521 and the updated superseding number LH680534 (Flame Sensor w/Lead) — factory-specified for the Carrier PG92SCS48060BAAA gas furnace. The flame sensor is a critical safety component: it generates a small electrical current through the burner flame to prove ignition to the integrated furnace control (IFC) board. When the sensor is fouled with oxidation or has failed completely, the furnace will light briefly and then shut off after just 5 to 8 seconds, triggering a lockout code. Replacing the flame sensor is one of the most common and cost-effective furnace repairs.

• OEM Part Numbers: LH33WZ521 (Flame Sensor) | LH680534 (Flame Sensor w/Lead) — both are factory-authorized for this model. LH680534 is the current superseding number and includes a lead wire for drop-in installation.
• OEM vs. Generic: Genuine Carrier OEM sensors are manufactured to exact rod-length, bracket angle, and alloy specifications. Aftermarket sensors can have incorrect geometry or inferior rod coatings, leading to nuisance shutdowns and repeat service calls.
• Install Difficulty: 1/5 — The simplest furnace repair. Tools needed: 1/4" hex driver (1 screw), fine steel wool or emery cloth to clean the rod if reusing, and a multimeter to verify microamp output post-install. Always shut off gas and power before servicing.
• Warranty: 1-year OEM manufacturer warranty from date of purchase. In-stock orders ship same business day when placed before cutoff.

Compatibility: Designed for the Carrier PG92SCS48060BAAA gas furnace. This part also cross-references several legacy Carrier flame sensor numbers including LH680014, LH680012, LH33WZ511, LH33WZ515, and LH33WZ517 — confirm your existing part number or model data plate before ordering. Our team is available to verify fitment prior to purchase.