OEM Carrier Flame Sensor (48GS400192) for Model PY2PEB042060NB

This OEM Carrier flame sensor is the factory-specified replacement part for the Carrier PY2PEB042060NB packaged gas/electric unit. The flame sensor — also called a flame rod — uses ionization rectification to confirm that a burner flame is present after ignition. When the sensor detects current through the flame, it signals the control board to keep the gas valve open. A failed or contaminated sensor produces a weak or absent signal, causing the furnace to ignite, run for 5–8 seconds, then lock out on a safety trip. Replacing this part is one of the most common and cost-effective furnace repairs.

• Part Number: Carrier OEM 48GS400192 | 90-degree flame rod with factory mounting bracket included
• OEM vs Generic: OEM sensors are manufactured to exact factory tolerances for signal conductivity and rod geometry. Generic units can produce marginal microamp readings that trigger nuisance lockouts, especially as the furnace ages.
• Install Difficulty: 2/5 — Turn off gas and power before servicing. Tools needed: 1/4" nut driver, flat-head screwdriver, and a multimeter (to verify microamp output post-install). Disconnect the single wire connector, remove one mounting screw, and reverse to install. Clean the burner port area while access is open.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before 3 PM.

Compatibility: Designed for the Carrier PY2PEB042060NB packaged gas/electric unit. Always cross-reference your unit's data plate and existing part number before ordering. Our parts specialists are available to confirm fitment — just reach out before you buy. Order now and your part ships today.