OEM Carrier Flame Sensor 50HJ401431 for Model PY1RJA048115AAWB

This is the genuine OEM Carrier flame sensor (part# 50HJ401431), factory-specified for the Carrier PY1RJA048115AAWB packaged gas unit. The flame sensor — also called a flame rod — is a critical safety component that detects the presence of a burner flame during the ignition sequence. It passes a small current through the flame and back to the control board to confirm combustion. When it fails or becomes coated with oxidation, the control board cannot verify ignition, causing the burner to light briefly and then shut down — typically within 5 to 8 seconds — triggering a safety lockout. The fix is almost always a direct flame sensor replacement.

• Specs: OEM part# 50HJ401431 | Stainless steel sensing probe with alumina-coated rod | Dimensions: approx. 2.9"W × 4"D × 1.75"H | Compatible with 24V AC furnace control circuits
• OEM vs Generic: This is a genuine Carrier OEM part, manufactured to exact factory tolerances. Generic sensors can vary in probe length, rod coating, and sensitivity threshold — risking nuisance lockouts or, worse, delayed shutoff. OEM is the only guaranteed drop-in fit for the PY1RJA048115AAWB.
• Install difficulty: 2/5 — Shut 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 clean probe if testing before replacement). Reconnect the single wire lead and single mounting screw. Always verify flame signal with a multimeter (should read 1–10 µA DC) after install.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day when ordered by 3 PM local time.

Compatibility: Designed and factory-matched for the Carrier PY1RJA048115AAWB packaged gas/electric unit. Verify your existing sensor's mounting bracket configuration and lead wire connector before ordering to ensure a direct fit. Our parts specialists are available to confirm compatibility before you buy — no guesswork required.