OEM Carrier Flame Sensor 50HJ401431 for Model PY1RPA048074AAWA

This is the genuine OEM flame sensor (part #50HJ401431) factory-specified for the Carrier PY1RPA048074AAWA packaged gas unit. The flame sensor — also called a flame rod — is a critical safety component in your gas heating system. It uses a small microamp current to confirm that a burner flame is present after ignition. When the sensor is coated with oxidation or has failed, the control board cannot verify combustion, causing the system to shut off gas flow within 5–8 seconds of ignition as a safety precaution. The result: your unit starts briefly, then locks out — leaving you with no heat.

• Specs: OEM Part #50HJ401431 | Stainless steel sensing rod | Alumina-coated probe | Dimensions: 2.9" W × 4" D × 1.75" H | Weight: 0.09 lbs | Compatible with 24V AC control circuits
• OEM vs Generic: This genuine Carrier OEM sensor is calibrated to the exact microamp sensitivity threshold required by the PY1RPA048074AAWA control board. Aftermarket sensors often fall outside acceptable μA tolerance ranges, causing nuisance lockouts or undetected ignition failures — a safety risk in any gas appliance.
• Install Difficulty: 2/5 — Straightforward replacement. Turn off power and gas before beginning. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers, fine steel wool or emery cloth (to clean rod if reusing). Disconnect the single wire lead, remove the mounting screw, swap sensor, and reconnect. Always restore power and verify flame detection with a microamp meter if available.
• Warranty: 1-year OEM manufacturer warranty. In-stock units ship the same business day when ordered by cutoff time. Hassle-free returns accepted.

Compatibility: Engineered as the direct OEM replacement for the Carrier PY1RPA048074AAWA packaged gas heating unit. If you are unsure of fitment, our HVAC parts specialists verify compatibility before you order — just reach out. Order today and get your system back to safe, reliable operation.