OEM Carrier Flame Sensor (48GS400192) for Model PY3GNA060130AB

This is the genuine OEM Carrier flame sensor, part number 48GS400192, factory-specified for the Carrier PY3GNA060130AB gas furnace. The flame sensor is a critical safety component: once the burner ignites, it produces a small DC microamp signal through the flame rod that confirms to the control board that combustion is established. When the sensor fails — typically due to oxidation or carbon buildup on the rod — the board cannot confirm flame presence and locks out the system, usually after just 5–8 seconds. The result is a furnace that lights briefly, then shuts down and goes into hard lockout.

• Part Specs: 90-degree flame sensor with mounting bracket | OEM part #48GS400192 | Genuine Carrier replacement | Compact form factor (~4.9" L × 1.75" H)
• OEM vs Generic: This is the factory OEM sensor — matched exactly to your control board's microamp threshold. Generic sensors vary in rod geometry and signal output, which can trigger nuisance lockouts or fail to detect weak flames reliably.
• Install Difficulty: 2/5 — Turn off gas and 24V power before servicing. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers. Disconnect the single-wire harness, remove the mounting screw, swap the sensor, and reconnect. Always verify flame signal with a multimeter (target: 1–5 µA DC) after installation.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier PY3GNA060130AB gas furnaces. Verify your unit's model and data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — contact us before placing your order. In stock and ready to ship today.