OEM Carrier Flame Sensor Assembly LH33WZ005 for Model PY1PPA030080ACBA

This OEM Carrier flame sensor assembly (part# LH33WZ005) is the factory-specified replacement for the Carrier PY1PPA030080ACBA packaged heating unit. The flame sensor — also called a flame rod — is a critical safety component mounted in the burner assembly. It monitors the presence of a live burner flame by passing a small electrical current through the ionized combustion gases. When the sensor confirms flame, it signals the control board to keep the gas valve open. A failed or fouled sensor cannot confirm combustion, causing the control board to shut off the gas valve as a safety precaution — typically 5 to 8 seconds after ignition. The result is a frustrating no-heat condition where the furnace lights briefly, then shuts down and locks out.

• Specs: OEM Carrier flame sensor assembly | 64.5" wire lead | Factory Authorized Part | Rated for Carrier packaged gas heating applications | UPC: 00696333169325
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part engineered to exact microamp output specifications. Generic sensors often suffer from inconsistent rod coatings and off-spec ceramic insulators, leading to nuisance lockouts and premature failure — especially in high-cycle commercial applications.
• Install difficulty: 2/5 — Turn off power and gas before servicing. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers, multimeter (microamp mode to verify 2–6 µA signal). Always inspect burner assembly and clean sensor rod contact area before installing. Photograph wire routing before disconnecting.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PY1PPA030080ACBA packaged gas heating units. Verify part number against your unit's service data plate before ordering. Our fitment specialists are available to confirm compatibility — contact us before you buy if you have any questions.