OEM Carrier Flame Sensor 50HJ401431 for Model PY1RPA120224ABWA

This is the genuine OEM Carrier flame sensor (part #50HJ401431), factory-specified for the Carrier PY1RPA120224ABWA packaged gas heating unit. The flame sensor is a critical safety component: after ignition, the control board sends a small microamp current through the sensor's stainless steel rod into the burner flame. If the board does not detect that return current within a few seconds, it cuts gas flow and locks out the system. A failed or carbon-coated flame sensor is one of the most common causes of a furnace that lights briefly, then shuts off after 5–8 seconds — often followed by a lockout fault code.

• Specs: OEM part #50HJ401431 | Stainless steel sensing rod with alumina-coated probe | Dimensions approx. 2.9" W × 4" D × 1.75" H | Compatible with standard 24V AC furnace control circuits | Weight: 0.09 lbs
• OEM vs Generic: This is a genuine Carrier OEM part, not an aftermarket substitute. OEM sensors are calibrated to the exact microamp detection threshold required by the Carrier control board. Generic sensors with off-spec rod coatings or bracket geometry can cause nuisance lockouts or, worse, unreliable flame detection.
• Install Difficulty: 2/5 — Shut off gas supply and 120V power before beginning. The sensor is typically secured by a single 1/4" hex-head screw. Tools needed: 1/4" nut driver, needle-nose pliers, fine steel wool or emery cloth (to clean rod if reusing). Photograph wiring connector orientation before disconnecting. Total job time: 15–30 minutes.
• Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day when ordered by cutoff time.

Compatibility: Engineered as a direct OEM drop-in replacement for the Carrier PY1RPA120224ABWA packaged gas/electric unit. Always confirm your existing part number against the unit data plate or wiring diagram before ordering. Our parts specialists are available to verify fitment — contact us before you buy if you have any questions.