OEM Carrier Flame Sensor 50HJ401431 for Model PY1REA060115AAWB

This is the genuine OEM replacement flame sensor for the Carrier PY1REA060115AAWB 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 current through the flame to prove combustion to the control board. When the sensor is coated with oxidation or fails entirely, the control board cannot confirm a flame is present, causing the unit to ignite and then shut down on lockout after just 5 to 8 seconds. The result: a no-heat call with a furnace that appears to try to start but keeps cycling off.

• OEM Part Number: 50HJ401431 | Genuine Carrier factory part — not an aftermarket substitute
• Specs: Stainless steel sensing rod | Alumina-coated probe for corrosion resistance | Compact form factor (approx. 2.9" W × 4" D × 1.75" H) | Compatible with standard 24V AC control circuits
• OEM vs Generic: OEM sensors are calibrated to the exact microamp threshold your Carrier control board expects. Generic sensors can drift out of spec, causing nuisance lockouts or, worse, delayed shutoff. Always use OEM on packaged units where access is more involved.
• Install Difficulty: 2/5 — Turn off gas and power at the disconnect before starting. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers, and a multimeter to verify microamp signal (typically 1.5–4 µA DC) after installation. Photograph the wire lead routing before disconnecting.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day when ordered by 3 PM local time.

Compatibility: Designed for the Carrier PY1REA060115AAWB packaged gas/electric unit. Always cross-reference the OEM part number on your existing sensor's bracket or control board wiring diagram before ordering. If you have any fitment questions, our HVAC parts specialists are available to verify compatibility before your order ships.