OEM Carrier Flame Sensor (48GS400192) for Model PY1PPB060090AAAA

This OEM 90-degree flame sensor is the factory-specified replacement for the Carrier PY1PPB060090AAAA gas furnace. The flame sensor is a critical safety component that uses ionization/rectification to detect the presence of a burner flame. During a heating cycle, the control board sends voltage through the sensor rod; if a live flame is present, a small microamp current flows back, confirming ignition. When the sensor fails — typically due to oxidation or carbon buildup on the rod — the board cannot verify the flame and triggers a safety lockout, shutting the burner off within 5 to 8 seconds of ignition. The result: your furnace lights briefly, then goes cold.

• Part Number: 48GS400192 | 90-degree bracket-mount design | Rod length approx. 1.6 in. | Overall dimensions approx. 4.9 in. × 1.75 in. | Factory-matched microamp output
• OEM vs Generic: OEM sensors carry the exact rod alloy and bracket geometry spec'd by Carrier engineering. Generic sensors vary in rod material and coating, which can result in marginal microamp readings and nuisance lockouts — especially in older or high-cycle furnaces.
• Install Difficulty: 1/5 — One of the easiest furnace repairs. Tools needed: 1/4 in. hex driver or nut driver, needle-nose pliers. Turn off power and gas before servicing. Disconnect the single wire connector, remove the one mounting screw, slide out the old sensor, install the new one, reconnect the wire. Total time: under 10 minutes. Tip: lightly clean the rod with fine steel wool before reinstalling if reusing.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse stock.

Compatibility: Designed for the Carrier PY1PPB060090AAAA gas furnace. Verify your existing sensor's bracket angle (90°) and mounting-hole pattern against your unit's data plate before ordering. Our fitment team is available to confirm compatibility — contact us before you buy if you have any questions. Order now and this part ships today.