OEM Carrier Flame Sensor 48GS400192 for Model PY3PEA036090AA

This is the factory OEM flame sensor (part number 48GS400192) for the Carrier PY3PEA036090AA packaged unit. The flame sensor — also called a flame rod — is a safety device mounted in the burner assembly that detects the presence of a live flame by passing a small DC current through the flame itself. When the sensor becomes coated with oxidation or simply fails, the furnace control board cannot confirm ignition and will shut down the gas valve within 5 to 8 seconds of each ignition attempt, causing a no-heat lockout condition. Replacing the flame sensor is one of the most common and cost-effective furnace repairs available.

• Specs: OEM part number 48GS400192 | Factory-matched flame rod length and tip geometry | Correct bracket and terminal configuration for direct fit to Carrier PY3PEA036090AA
• OEM vs Generic: This is a genuine OEM Carrier flame sensor built to exact factory specifications. Generic sensors can have mismatched rod dimensions or inferior coatings that reduce signal strength, leading to nuisance lockouts even after cleaning.
• Install Difficulty: 2/5 — Shut off power and gas supply before starting. Tools needed: 1/4" or 5/16" nut driver, needle-nose pliers, and a soft Scotch-Brite pad (if cleaning the old sensor was attempted first). The sensor is typically secured with a single mounting screw and uses a single wire connector.
• Warranty: 1-year OEM factory warranty against defects. Orders placed by 3 PM local time ship the same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for the Carrier PY3PEA036090AA packaged unit. Always cross-reference the part number on your existing sensor or equipment data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us before placing your order.