OEM Carrier Flame Sensor (90°) for Model PY2PNB042060NB — Part #48GS400192

This is the genuine OEM Carrier flame sensor, part number 48GS400192, factory-specified for the Carrier PY2PNB042060NB gas furnace. The flame sensor — also called a flame rod — is a critical safety component that uses ionization/rectification to confirm a live burner flame during each heating cycle. When it fails or becomes coated with oxidation, the furnace control board receives no flame-confirmation signal and triggers a safety lockout, causing the furnace to light briefly and then shut down within 5–8 seconds. Replacing this sensor is one of the most common and cost-effective furnace repairs available.

• Specs: 90° mounting angle | Rod-style flame sensor with bracket mount | OEM factory dimensions approx. 4.9" H × 1.75" W × 1.6" rod length | Direct factory replacement for part #48GS400192
• OEM vs Generic: This is a genuine Carrier OEM part, manufactured to exact factory tolerances. Generic aftermarket sensors can vary in rod geometry and coating, leading to unreliable flame signal readings and repeat lockouts — always specify OEM for reliable, long-term performance.
• Install difficulty: 1/5 — One of the simplest furnace repairs. Tools needed: 1/4" hex driver or nut driver, fine steel wool or emery cloth (to clean rod if needed). Turn off power and gas before servicing. Disconnect the single-wire connector, remove one mounting screw, swap sensor, reconnect wire. Total time: under 10 minutes.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse — order by 3 PM local time.

Compatibility: Designed for the Carrier PY2PNB042060NB gas furnace. If your furnace lights then shuts off after a few seconds on every call for heat, this sensor is the most likely culprit. Verify part number on your existing sensor or equipment data plate before ordering. Our fitment team is available to confirm compatibility before you buy — reach out before placing your order if you have any doubts.