OEM Carrier Spark Electrode Ignitor (48VL400002) for Model PY4GPAB48090NA

This is the OEM factory-specified spark electrode ignitor assembly for the Carrier PY4GPAB48090NA packaged gas/electric unit. The ignitor generates the high-voltage spark that ignites the gas burner at the start of every heat cycle. When it fails, the unit will attempt ignition, fail to establish flame, and enter a safety lockout — leaving you with no heat and a blinking fault code on the control board. The original part number 48VL400002 has been superseded by Carrier OEM replacement 50HJ403022, which ships as the current factory-authorized assembly.

• Part Numbers: OEM 48VL400002 (superseded) | Current OEM replacement: 50HJ403022 | Spark electrode ignitor assembly | Factory-authorized Carrier part
• OEM vs Generic: OEM ignitor assemblies are precision-gapped and matched to the burner geometry of your Carrier unit. Generic spark electrodes often have inconsistent gap tolerances, leading to intermittent ignition failures and repeat service calls.
• Install Difficulty: 2/5 — Turn off gas supply and 24V control power before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Photograph electrode position and wire routing before removal. Handle ceramic insulator carefully — do not touch the electrode tip with bare hands.
• Warranty: 1-year OEM manufacturer warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PY4GPAB48090NA packaged units. Verify your existing part number (48VL400002) against your unit's data plate or wiring diagram before ordering. Not sure it fits? Our team verifies fitment before you order — contact us and we'll confirm compatibility fast.