OEM Carrier Flame Sensor (48GS400192) for Model PY2PNB030060AA

This is the factory OEM flame sensor for the Carrier PY2PNB030060AA gas furnace. The flame sensor — also called a flame rod — is a critical safety component mounted in the burner assembly. During each heating cycle, it uses ionization (flame rectification) to confirm that a flame is present after ignition. When the sensor is coated with oxidation or has failed entirely, the furnace control board receives no confirmation signal and shuts off the gas valve within 5 to 8 seconds to prevent an unsafe gas buildup — causing the frustrating "starts then shuts off" symptom most homeowners experience.

• Part Specs: 90-degree flame sensor with mounting bracket | OEM part number 48GS400192 | Dimensions approx. 4.9" L × 1.75" H | Factory-matched for Carrier PY2PNB030060AA gas furnaces
• OEM vs Generic: This is a genuine Carrier OEM part — not an aftermarket substitute. OEM sensors are manufactured to exact rod-length and metallurgy tolerances, ensuring reliable ionization current readings and preventing nuisance lockouts caused by marginal generic parts.
• Install Difficulty: 2/5 — Straightforward replacement accessible from the burner compartment. Tools needed: 1/4" nut driver, fine steel wool or emery cloth (to clean rod contacts), and a multimeter to verify microamp signal. Always shut off gas and power before servicing. Label your wiring before disconnecting.
• Warranty: 1-year OEM manufacturer warranty against defects. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Designed and tested for the Carrier PY2PNB030060AA gas furnace. Verify your unit's model and data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us today and get back to heat fast.