OEM Carrier Flame Sensor 50HJ401431 for Model PY1RPA120224ABWB

This is the genuine OEM replacement flame sensor for the Carrier PY1RPA120224ABWB packaged gas unit. The flame sensor — also called a flame rod — is a critical safety component that detects whether a burner flame is actually present after ignition. It does this by passing a small microamp current through the flame itself. When the sensor is fouled with oxidation or carbon buildup, or has failed entirely, the control board cannot confirm combustion and will shut off the gas valve within 5 to 8 seconds of ignition — leaving you with a system that lights briefly and then locks out on a fault code.

• Part Number: 50HJ401431 | OEM Carrier replacement | Stainless steel sensing probe with alumina-coated rod for corrosion resistance and high-temperature durability
• OEM vs Generic: This factory-genuine OEM sensor is calibrated to the exact microamp sensitivity threshold required by the Carrier control board. Off-brand sensors can read marginally low and cause nuisance lockouts even when the burner is operating normally.
• Install Difficulty: 2/5 — Power down and confirm gas is off before servicing. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers. Disconnect the single wire lead, remove the mounting screw, swap the sensor, and reconnect. Always clear any fault codes after installation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse when ordered by 3 PM local time.

Compatibility: Designed as the factory-specified flame sensor for the Carrier PY1RPA120224ABWB packaged rooftop unit. Verify your existing part number against 50HJ401431 before ordering. Need fitment assistance? Our HVAC parts specialists confirm compatibility before you buy — no guesswork, no returns.