OEM Carrier Flame Sensor for Model PG96VAT60080CCAA — LH33WZ521 / LH680534

This OEM flame sensor is the factory-specified replacement for the Carrier PG96VAT60080CCAA 96% AFUE variable-speed gas furnace. The flame sensor (also called a flame rod) is a critical safety component mounted in the burner assembly — it detects the presence of a live flame by passing a small microamp current through the flame to ground. When the sensor's rod becomes coated with oxidation or the component fails entirely, the furnace control board can no longer confirm ignition. The result: the furnace lights briefly, then shuts off after 5–8 seconds and enters a safety lockout, typically flashing a fault code indicating "flame sense failure." Replacing the flame sensor is one of the most common and cost-effective furnace repairs available.

• OEM Part Numbers: Primary — LH33WZ521 (Flame Sensor) | Alternate — LH680534 (Flame Sensor w/Lead). Both are factory-authorized replacements for the PG96VAT60080CCAA. Select the lead-wire version (LH680534) if your original sensor includes an attached wire harness.
• OEM vs Generic: This OEM sensor is manufactured to Carrier's exact microamp threshold and rod geometry, ensuring reliable flame detection within the factory-specified range. Aftermarket sensors often use lower-grade rods that re-oxidize faster, leading to repeat service calls within a single heating season.
• Install Difficulty: 2/5 — Turn off power and gas before beginning. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers, and optionally a multimeter (to verify microamp draw of 1–4 µA). The sensor mounts with a single screw on the burner bracket. Always clean the burner area and inspect the igniter while the furnace is open.
• Warranty & Shipping: Backed by a 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PG96VAT60080CCAA 80,000 BTU, 96% AFUE, two-stage, variable-speed upflow/horizontal gas furnace. Always verify your unit's data plate and existing part number before ordering. Our fitment team is standing by to confirm compatibility — contact us before you buy if you have any questions.