OEM Carrier Flame Sensor 50HJ401431 for Model PY1RPA048115AAWB

This is the genuine OEM flame sensor (part #50HJ401431) factory-specified for the Carrier PY1RPA048115AAWB packaged gas unit. The flame sensor — also called a flame rod — passes a small electrical current through the burner flame to confirm ignition. When the control board detects insufficient signal, it cuts gas flow as a safety measure. A failed or contaminated flame sensor is one of the most common causes of a furnace that ignites briefly, then shuts down after just 5–8 seconds, followed by a lockout fault code. Replacing this inexpensive OEM part restores normal heating operation quickly.

• Specs: OEM part #50HJ401431 | Stainless steel sensing rod | Alumina-coated probe | Dimensions approx. 2.9"W × 4"D × 1.75"H | Compatible with standard 24V AC furnace control circuits
• OEM vs Generic: This genuine Carrier OEM sensor is calibrated to the exact microamp threshold required by your PY1RPA048115AAWB control board. Aftermarket sensors may fall outside the acceptable signal range, causing nuisance lockouts or — worse — failing to detect a true flame-out condition.
• Install difficulty: 2/5 — Turn off gas and power before servicing. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers, fine steel wool or emery cloth (to lightly clean rod if reusing). Photograph wire connector before removal. Swap the rod, reconnect the single wire lead, and restore power. Full swap typically under 15 minutes.
• Warranty: 1-year OEM manufacturer warranty. In-stock orders ship the same business day from our warehouse.

Compatibility: Engineered as the factory-direct replacement for Carrier model PY1RPA048115AAWB packaged gas/electric units. Always confirm your existing part number against the unit's data plate or wiring diagram before ordering. Our fitment team is available to verify compatibility — contact us before you order if you have any questions.