OEM Carrier Flame Sensor 48GS400192 for Model PY1PNB030060AAAA

This is the genuine OEM replacement flame sensor for the Carrier PY1PNB030060AAAA gas furnace. The flame sensor — also called a flame rod — is a critical safety component that confirms a burner flame is present after ignition. It works via ionization: when the burner lights, the flame conducts a small electrical current through the rod back to the control board, verifying safe combustion. When the sensor fails or its rod becomes coated with oxidation, the control board cannot confirm ignition and shuts the gas valve off — typically 5 to 8 seconds after the burner lights. The furnace will then lockout or attempt 2–3 more ignition cycles before posting a fault code.

• Part Number: 48GS400192 | Genuine Carrier OEM | Manufactured in the United States | Dimensions approx. 4.9" L × 1.75" H
• OEM vs Generic: The OEM sensor rod is factory-matched to the PY1PNB030060AAAA burner assembly, ensuring correct ionization signal strength and bracket fitment. Generic sensors may use undersized rods or mismatched connectors that cause nuisance lockouts.
• Install Difficulty: 1/5 — One of the easiest furnace repairs. Turn off power and gas, remove the single mounting screw, unplug the wire connector, and reverse to install. Tools needed: 1/4" nut driver or flat-head screwdriver. Lightly sand the rod with fine steel wool before installation if replacing due to oxidation buildup.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PY1PNB030060AAAA gas furnace. Verify your existing part number on the sensor body or unit wiring diagram before ordering. If your furnace is lighting and cutting out within 5–8 seconds, this sensor is the most common cause. Our fitment team is available to confirm compatibility before you order — don't get stuck with the wrong part.