OEM Carrier Flame Sensor 50HJ401431 for Model PY1RPA048115AAWA

This is the genuine OEM Carrier flame sensor (part #50HJ401431), factory-specified for the Carrier PY1RPA048115AAWA packaged gas/electric unit. The flame sensor is a critical safety component — a stainless steel rod positioned in the burner flame path that uses flame rectification to verify combustion is present. When working correctly, it allows the control board to keep the gas valve open. When it fails or becomes coated with oxidation, the control board can no longer confirm flame presence and will shut the burner off within 5–8 seconds of ignition, triggering a lockout fault.

• 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 is a genuine Carrier OEM part — factory-matched probe geometry and coating ensure accurate microamp signal output to the control board. Aftermarket sensors may deliver inconsistent readings, causing nuisance lockouts or masking a true ignition problem.
• Install Difficulty: 1/5 — One of the easiest furnace repairs. Tools needed: 1/4" hex driver or nut driver, fine steel wool or emery cloth (for probe cleaning inspection), multimeter (optional, to verify microamp signal). Always shut off power and gas before servicing.
• Warranty: 1-year OEM factory warranty. In-stock orders ship same business day when placed before cutoff.

Compatibility: Designed for the Carrier PY1RPA048115AAWA packaged gas/electric unit. Verify your existing part number against the data label on your unit before ordering. Our parts specialists are available to confirm fitment — don't get stuck with the wrong part. Order today and get your system back to reliable, safe heating operation.