OEM Carrier Flame Sensor 48GS400192 for Model PY2PNB060090AB

This OEM flame sensor (part# 48GS400192) is the factory-specified replacement for the Carrier PY2PNB060090AB gas furnace. The flame sensor — also called a flame rod — is a safety device that detects the presence of a burner flame by passing a small electrical current through it. When the sensing rod becomes coated with oxidation or residue over time, it can no longer reliably confirm ignition to the control board, causing the furnace to shut down within 5 to 8 seconds of startup. The result is a repeated ignition lockout cycle and no heat. Replacing or cleaning this sensor restores normal furnace operation.

• Specs: OEM direct replacement | Factory-matched electrical characteristics | Rod and bracket assembly | Designed for natural gas and LP operation on the Carrier PY2PNB060090AB
• OEM vs Generic: OEM flame sensors use the correct rod alloy and bracket geometry for precise flame signal output. Generic sensors can produce weaker or inconsistent microamp readings, triggering nuisance lockouts and shortening control board life.
• Install difficulty: 2/5 — Turn off gas and power before beginning. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers. Disconnect the single lead wire, remove the mounting screw, and swap the sensor. Verify microamp signal with a multimeter set to DC microamps after installation (healthy signal: 2–6 µA).
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY2PNB060090AB gas furnace. Always confirm your unit's part number on the data plate or wiring diagram before ordering. Our fitment team is available to verify compatibility — reach out before you buy if you have any doubts. In stock and ready to ship today.