OEM Carrier Flame Sensor LH33WZ518 for Model PG9MXA036060AASA

This is the genuine OEM Carrier flame sensor (part #LH33WZ518), factory-specified for the Carrier PG9MXA036060AASA gas furnace. The flame sensor is a critical safety component — its flame rod generates a small microamp current in the presence of a burner flame, signaling the control board that ignition was successful. When the sensor fails due to carbon buildup or a cracked rod, the furnace will light briefly then shut off after 5–8 seconds, often triggering a lockout fault code. Replacing this part restores reliable heat and prevents unnecessary service calls.

• Part Number: LH33WZ518 | OEM Carrier replacement | Genuine factory-matched flame rod assembly
• OEM vs Generic: OEM sensors meet exact microamp output specs required by the Carrier IFC control board. Generic flame sensors can read low, causing nuisance shutdowns even with a healthy burner flame.
• Install Difficulty: 2/5 — Turn off gas and power before beginning. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers. Lightly sand the rod with fine steel wool if reinstalling; replace entirely if cracked or heavily oxidized. No soldering required.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Fits Carrier model PG9MXA036060AASA and is also used across Bryant, Carrier, and Payne furnace series including 58MEC, 58MTA, 58MTB, 352AAV, 352MAV, and PG9MXA series units. Always verify your unit's data plate and existing part number before ordering. Our team is available to confirm fitment — contact us before you buy.