OEM Carrier Flame Sensor 48GS400192 for Model PY3PEA042060AB

This OEM flame sensor (part number 48GS400192) is the factory-specified replacement for the Carrier PY3PEA042060AB packaged unit. The flame sensor — also called a flame rod — monitors the burner flame by passing a small microamp current through the flame to ground. When the sensor is coated with oxidation or fails entirely, the control board cannot verify flame presence and shuts down the burner within 5–8 seconds of ignition, resulting in a frustrating no-heat lockout condition. Replacing this sensor with the correct OEM part restores reliable flame detection and eliminates nuisance lockouts.

• Specs: OEM part number 48GS400192 | Factory-matched flame rod material and geometry | Correct microamp signal range for Carrier control board compatibility
• OEM vs Generic: This is a genuine Carrier OEM sensor, ensuring the exact rod alloy, ceramic insulator rating, and signal sensitivity your control board expects. Generic sensors may produce marginal microamp readings that cause intermittent lockouts even after installation.
• Install Difficulty: 2/5 — Shut off gas and power before servicing. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers, fine steel wool or emery cloth (to clean mounting surface). Disconnect the single-wire harness, remove the mounting screw, swap the sensor, and reconnect. Always confirm flame signal with a microamp meter after installation.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY3PEA042060AB packaged unit. Verify your existing OEM part number on the sensor body or your unit's wiring diagram before ordering. If you need fitment confirmation, our parts specialists are available to verify compatibility before you buy — same-day shipping on all in-stock orders.