OEM Carrier Flame Sensor 48GS400192 for Model PY3PNA060090NB

This OEM flame sensor (part# 48GS400192) is the factory-specified replacement for the Carrier PY3PNA060090NB gas furnace. The flame sensor — also called a flame rod — is a safety device that confirms a burner flame is present during each ignition cycle. The control board sends a small electrical current through the rod; if a flame is detected, the microamp signal tells the board to keep the gas valve open. When the sensor becomes coated with oxidation or carbon buildup, the signal weakens and the board shuts the furnace down within 5–8 seconds, triggering a fault lockout. Replacing it with a genuine OEM part restores precise factory-specified microamp sensitivity and keeps your furnace running safely all season.

• Specs: OEM Part# 48GS400192 | Flame rod / flame sensor | Factory-matched microamp response | Direct plug-in connector for Carrier PY3PNA060090NB
• OEM vs Generic: OEM flame sensors are manufactured to exact Carrier tolerances for rod material, coating, and connector geometry. Generic sensors often exhibit inconsistent microamp output, leading to nuisance shutdowns or, worse, delayed safety shutoff — neither of which is acceptable in a gas appliance.
• Install Difficulty: 2/5 — Shut off gas supply and 120V power before beginning. Tools needed: 1/4" hex nut driver, needle-nose pliers, and a multimeter capable of reading microamps (to verify signal after install). Always inspect the burner assembly for cracks or debris before reinstalling the panel.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day when ordered before 3 PM local time.

Compatibility: Designed specifically for the Carrier PY3PNA060090NB gas furnace. Verify your OEM part number on the unit's data plate or existing sensor body before ordering. Not sure if this fits your unit? Our HVAC parts specialists confirm fitment before every order — contact us and we'll verify within minutes. In stock and ships today.