OEM Carrier Flame Sensor 50HJ401431 for Model PY1RPA060074AAWA

This is the factory OEM flame sensor for the Carrier PY1RPA060074AAWA packaged gas heating unit. The flame sensor — also called a flame rod — is a critical safety component mounted directly in the burner flame path. It passes a small DC microamp current through the flame to verify ignition. When the control board does not detect that current within a few seconds of ignition, it immediately shuts off the gas valve as a safety lockout. A contaminated or failed sensor is one of the most common causes of a furnace or packaged unit that lights and then shuts off after just 5–8 seconds, triggering a repeated ignition lockout fault.

• OEM Part Number: 50HJ401431 | Genuine Carrier replacement — factory-matched to PY1RPA060074AAWA specifications
• Construction: Stainless steel sensing probe with corrosion-resistant alumina-coated rod | Compact form factor (approx. 2.9" W × 4" D × 1.75" H) | Compatible with standard 24V AC furnace control circuits
• OEM vs Generic: OEM sensors maintain factory-calibrated microamp sensitivity thresholds. Aftermarket sensors may read marginal flame current, causing nuisance lockouts or — worse — masking a genuine flame failure. For safety-critical combustion components, OEM is always recommended.
• Install Difficulty: 2/5 — Turn off gas and power before servicing. Tools needed: 1/4" hex driver or 5/16" nut driver, needle-nose pliers. Inspect the ceramic insulator for cracks and lightly sand the rod with fine steel wool if reinstalling an old sensor. Always confirm the system clears lockout after replacement.
• Warranty: 1-year OEM factory warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier PY1RPA060074AAWA packaged gas/electric units. Verify your existing part number against 50HJ401431 before ordering. If you have any questions about fitment, our HVAC parts specialists are available to confirm compatibility before you purchase — no guesswork required.