OEM Carrier Flame Sensor (48GS400192) for Model PY3PNA024060AB

This is the genuine OEM Carrier flame sensor, part number 48GS400192, factory-specified for the Carrier PY3PNA024060AB gas furnace. The flame sensor is a critical safety component: after the igniter lights the burner, this rod uses ionization/rectification to detect the presence of a live flame and send a confirming signal back to the control board. If the board never receives that signal — or receives a weak one due to a contaminated or failed sensor — it will cut gas flow within 5 to 8 seconds as a safety lockout. The result is a furnace that starts briefly, then shuts off and repeats the cycle, often triggering a fault code.

• Part Specs: 90-degree mounting angle | Approx. 4.9" L × 1.75" H × 1.6" W | OEM part number 48GS400192 | Factory-matched electrical characteristics for reliable rectification signal
• OEM vs Generic: OEM sensors are calibrated to exact microamp output thresholds required by the Carrier control board. Generic sensors may produce marginal signals that cause nuisance lockouts or intermittent no-heat calls — especially in cold weather when reliability matters most.
• Install Difficulty: 1/5 — One of the easiest furnace repairs. Tools needed: 1/4" hex driver or flat-head screwdriver, fine steel wool or emery cloth (to clean rod if reusing), and a multimeter (optional, to verify microamp output). Always turn off power and gas before servicing.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our stocked warehouse.

Compatibility: Designed for the Carrier PY3PNA024060AB gas furnace. Verify your unit's model and data plate before ordering. If you're unsure whether this part fits your system, our HVAC parts specialists will confirm fitment before you buy — no guesswork required. Order now and get back to heat fast.