OEM Carrier Flame Sensor LH33WZ003 for Model PY1PEA042060ADBA

This OEM flame sensor (part number LH33WZ003) is the factory-specified replacement for the Carrier PY1PEA042060ADBA packaged gas unit. The flame sensor — also called a flame rod or flame electrode — monitors the burner and sends a microamp signal to the control board confirming combustion is present. When the sensor fails or becomes coated with oxidation, the board cannot verify the flame, triggering a safety lockout. The classic symptom: the furnace or packaged unit lights, runs for 5 to 8 seconds, then shuts off and enters lockout — repeating the cycle with no heat delivered.

• Part Type: Direct Spark Ignition (DSI) flame sensor electrode | Factory Authorized Parts (FAP) designation | Replaces LH33WZ003A and LH33WZ001 | For use with LH33WP001 ignitor
• OEM vs Generic: This is a genuine Carrier OEM part, manufactured to exact factory tolerances for rod length, ceramic insulator quality, and microamp output. Aftermarket sensors can produce inconsistent microamp readings, causing nuisance lockouts even with a healthy burner.
• Install Difficulty: 2/5 — Shut off gas and power before servicing. Tools needed: 1/4" or 5/16" nut driver, needle-nose pliers, multimeter (to verify microamp draw, typically 1.5–4 µA DC). Clean the rod with fine steel wool if reusing; replace if cracked or heavily oxidized.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered for the Carrier PY1PEA042060ADBA packaged gas/electric unit. Verify your existing sensor's mounting bracket configuration and wire lead length before ordering. Our team is available to confirm fitment — just reach out before you buy. Order now and ship today.