OEM Carrier Flame Sensor 90° for Model PY1PPB036090ABAA — Part #48GS400192

This OEM flame sensor is the factory-specified replacement for the Carrier PY1PPB036090ABAA gas furnace. The flame sensor — also called a flame rod — is a critical safety component mounted in the burner assembly. During each heating cycle, the control board sends 120VAC through the sensor rod; when a flame is present, the ionized combustion gases allow a small microamp DC current to flow back, confirming ignition to the board. When the sensor is coated with oxidation or has failed, that signal drops below the board's threshold and the gas valve shuts off — typically 5 to 8 seconds after ignition. The result is a furnace that lights briefly, then locks out, often displaying a fault code for flame failure.

• Part Number: 48GS400192 | OEM Carrier replacement | 90-degree rod angle with mounting bracket included | Approximate rod length 1.6" | Overall dimensions ~4.9" × 1.75"
• OEM vs Generic: This is a genuine Carrier OEM part engineered to exact factory microamp and ceramic insulator specifications. Aftermarket sensors can carry wider tolerance ranges, risking nuisance lockouts or false flame signals — stick with OEM on safety-critical components.
• Install Difficulty: 2/5 — Straightforward single-screw swap. Tools needed: 1/4" hex-head driver, fine steel wool or emery cloth (to clean rod if reusing bracket), and a multimeter to verify microamp output if diagnosing. Always shut off power and gas before servicing. Photograph wire connector orientation before unplugging.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse in original factory packaging.

Compatibility: Designed for the Carrier PY1PPB036090ABAA gas furnace. Verify your unit's OEM part number on the data plate or existing sensor label before ordering. Cross-references: Bryant and Payne furnaces sharing this platform may also use part #48GS400192 — confirm via your model's parts diagram. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — reach out before you buy.