OEM Carrier Flame Sensor Assembly LH33WZ005 for Model PY1PPA036100ADBA

This is the genuine OEM Carrier flame sensor assembly (part# LH33WZ005), factory-specified for the Carrier PY1PPA036100ADBA packaged heat pump unit. The flame sensor — also called a flame rod — monitors the burner flame by passing a small rectified current through the flame itself. When the sensor rod becomes coated with oxidation or carbon buildup, or fails entirely, the control board cannot confirm ignition and will lock out the furnace or heat section, typically within 5 to 8 seconds of burner light-off. If your unit ignites but shuts down almost immediately, or displays a fault code indicating flame-sensing failure, this is the part to replace.

• OEM Part Number: LH33WZ005 | Factory Authorized Parts (FAP) | Carrier Corporation | Includes 64-1/2" wire lead assembly — direct plug-in replacement, no splicing required.
• OEM vs Generic: This is the genuine Carrier factory part, engineered to exact rod diameter, ceramic insulator tolerance, and connector spec. Aftermarket sensors often have inconsistent rod coatings and connector fit issues that lead to nuisance lockouts or repeat failures.
• Install Difficulty: 2/5 — Shut off gas and 24V power before servicing. Locate the sensor rod mounted in the burner bracket near the flame. Disconnect the wire harness, remove the single mounting screw, swap the sensor, and reconnect. Tools needed: 1/4" nut driver or flat-head screwdriver, needle-nose pliers. Always clear fault codes from the control board after replacement.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3PM local time.

Compatibility: Designed for the Carrier PY1PPA036100ADBA packaged unit. Also cross-references with select Bryant and Payne models sharing the LH33WZ005 specification — verify your model and data plate before ordering. Our parts specialists are available to confirm fitment before you buy. Order now and get your system back up fast — in stock and ships today.