OEM Carrier Flame Sensor 50HJ401431 for Model PY1RPA150224ADWB

This is the genuine OEM replacement flame sensor for the Carrier PY1RPA150224ADWB packaged gas unit. The flame sensor — also called a flame rod — is a safety-critical component that monitors the burner flame during every ignition cycle. Using the principle of flame rectification, it passes a small current through the burner flame and signals the control board that combustion is confirmed. When the sensor fails or becomes coated with oxidation, the control board cannot verify flame presence and shuts off the gas valve as a safety measure — typically within 5 to 8 seconds of ignition. The result: your system lights briefly, then locks out, cycling repeatedly without producing sustained heat.

• Specs: OEM Part No. 50HJ401431 | Stainless steel sensing rod | Alumina-coated probe for corrosion resistance | Dimensions approx. 2.9" W × 4" D × 1.75" H | Compatible with 24V AC control circuits
• OEM vs Generic: This is a factory-matched Carrier OEM sensor with calibrated probe geometry and coating — not an aftermarket substitute. Generic flame sensors can have mismatched rod angles, incorrect bracket hole spacing, or lower-grade coatings that degrade faster, leading to repeat nuisance lockouts.
• Install Difficulty: 2/5 — A straightforward single-screw bracket removal. Tools needed: 1/4" or 5/16" nut driver, fine steel wool or emery cloth (to lightly clean the rod if reusing bracket hardware), and a multimeter to verify microamp signal post-install. Always turn off power and gas at the unit before servicing.
• Warranty: 1-year OEM factory warranty. In-stock orders placed before cutoff ship same business day from our warehouse.

Compatibility: Engineered to fit the Carrier PY1RPA150224ADWB packaged gas/electric unit. Verify your OEM part number on the unit's wiring diagram or parts list before ordering. Not sure it fits? Our team confirms fitment before you buy — contact us and we'll verify within the hour.