OEM Carrier Flame Sensor Assembly LH33WZ005 for Model PY1PPA036080ACBA

This is the genuine OEM Carrier flame sensor assembly (part # LH33WZ005), factory-specified for the Carrier PY1PPA036080ACBA packaged heat pump unit. The flame sensor — also called a flame rod — uses ionic current detection to signal the control board that a burner flame is present. When the sensor fails or becomes coated with oxidation, the control board loses confirmation of ignition and shuts the gas valve within 5–8 seconds of burner light-off. The result: your system attempts ignition repeatedly, then locks out, leaving you with no heat. Replacing the flame sensor is one of the most common furnace/packaged-unit service calls and one of the most cost-effective fixes available.

• Specs: OEM Carrier flame sensor assembly | 64.5" wire lead | Factory Authorized Part (FAP) | Part # LH33WZ005 | Mfr. cross-reference: PSE-CEA | Made in USA
• OEM vs Generic: The OEM LH33WZ005 is engineered to exact Carrier tolerances for rod geometry, ceramic insulator composition, and wire gauge. Generic sensors can produce inconsistent microamp readings that trigger nuisance lockouts — especially as they age. OEM is always the correct call for packaged commercial units.
• Install difficulty: 2/5 — Tools needed: 1/4" hex nut driver, needle-nose pliers, fine steel wool or light sandpaper (to clean rod if reusing bracket). Always disconnect power before servicing. Verify microamp signal (1.5–4 µA DC typical) with a multimeter after installation to confirm proper operation.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed for the Carrier PY1PPA036080ACBA packaged unit. Always verify your unit's data plate and existing part number before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.