OEM Carrier Flame Sensor (48GS400192) for Model PY3PPA042060NA

This OEM 90-degree flame sensor is the factory-specified replacement for the Carrier PY3PPA042060NA gas furnace. The flame sensor is a critical safety component — it uses ionization/rectification technology to detect the presence of a burner flame during each heating cycle. When the sensor detects a valid flame signal, the furnace continues to operate normally. When it fails — typically due to oxidation or carbon buildup on the sensing rod — the control board cannot confirm ignition and will shut off the gas valve within 5–8 seconds, triggering a safety lockout. The result: a furnace that lights briefly, then shuts off, repeating in a frustrating short-cycle pattern.

• Specs: 90° mounting angle | Flame rod with bracket assembly | OEM part number 48GS400192 | Factory-matched ionization signal tolerance
• OEM vs Generic: This is a genuine Carrier OEM part, manufactured to exact factory specifications. Generic aftermarket sensors can have incorrect rod length, improper bracket geometry, or mismatched signal thresholds — all of which cause nuisance lockouts or unsafe operation.
• Install Difficulty: 2/5 — Straightforward swap. Turn off power and gas before servicing. Tools needed: Phillips screwdriver, 1/4" nut driver, and needle-nose pliers. Clean the burner assembly while the panel is open. Always verify polarity of the sensor wire connector before re-energizing.
• Warranty: 1-year OEM factory warranty against manufacturing defects. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PY3PPA042060NA gas furnaces. Always cross-reference your unit's data plate and confirm part number 48GS400192 before ordering. Our fitment team is available to verify compatibility before you buy — don't guess on a safety-critical part. Order now and this ships today.