OEM Carrier Flame Sensor Assembly LH33WZ005 for Model PY1PEA048100AGBA

This is the genuine OEM Carrier flame sensor assembly (part# LH33WZ005), factory-specified for the Carrier PY1PEA048100AGBA packaged heat pump unit. The flame sensor — also called a flame rod — monitors the gas burner to confirm ignition has occurred. It does this by passing a small microamp current through the burner flame to ground. When the sensor is coated with oxidation or has failed outright, the control board cannot verify a flame is present and will cut gas flow within 5–8 seconds as a safety lockout. The result: your unit lights briefly, then shuts off, cycling repeatedly with no heat output.

• Specs: OEM Carrier Flame Sensor Assembly | 64-1/2" wire lead | Factory Authorized Part | Manufacturer Part# LH33WZ005
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, manufactured to exact microamp threshold tolerances. Aftermarket sensors often fall outside the control board's acceptance range, causing nuisance lockouts or unreliable flame detection — stick with OEM for a reliable fix.
• Install Difficulty: 2/5 — A straightforward swap accessible in the burner compartment. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers. Always shut off gas supply and power to the unit before servicing. Lightly sand the rod with fine steel wool if reusing as a temporary measure; replace for a permanent fix.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement for the Carrier PY1PEA048100AGBA packaged unit. Verify your existing sensor's wire lead length and mounting bracket configuration against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you order — call or chat today.