OEM Carrier Flame Sensor (48GS400192) for Model PY3PPA060090AB

This is the genuine OEM Carrier flame sensor, part number 48GS400192, factory-specified for the Carrier PY3PPA060090AB gas furnace. The flame sensor is a critical safety component mounted directly in the burner assembly. It uses ionization/rectification to detect the presence of a live burner flame and sends a microamp signal back to the control board to confirm ignition. When the sensor fails — usually due to oxidation or carbon buildup on the rod — the control board cannot verify the flame and initiates a safety lockout, shutting off gas flow within 5–8 seconds of ignition. The result: your furnace lights briefly, then shuts off, repeating the cycle until the system locks out.

• Specs: 90° angled mounting bracket | Flame rod sensor | Compatible with standard IFC control board microamp sensing | Approximate dimensions: 4.9" (H) × 1.75" (W) × 1.6" rod length
• OEM vs Generic: This is a factory-matched OEM part built to Carrier's exact rod geometry and alloy specification. Generic sensors may have incorrect rod angles or inferior alloy coatings, leading to weak microamp readings and premature nuisance lockouts.
• Install Difficulty: 2/5 — A straightforward repair for most DIYers. Tools needed: 1/4" nut driver or hex driver, needle-nose pliers. Always shut off power and gas before servicing. Disconnect the single wire lead, remove the mounting screw, swap the sensor, and reconnect. Lightly sand the rod with fine steel wool if reusing for diagnostics.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed for the Carrier PY3PPA060090AB packaged gas/electric unit. Verify your existing sensor's mounting angle (90°) and wire connector style against your unit's data plate before ordering. Not sure it fits? Contact our HVAC parts specialists for free fitment verification. Order now — in stock and ships today.