OEM Carrier Spark Electrode Ignitor 48VL400002 for Model PY3GNAA48115AA

This is the OEM factory-specified spark electrode ignitor for the Carrier PY3GNAA48115AA packaged gas unit. The spark electrode ignitor generates the high-voltage spark that ignites the burner assembly during each heating cycle. When this component fails, the control board will attempt ignition, fail to sense a flame, and lock out the system — leaving you with a unit that blows cold air or no air at all. Fault codes for ignition failure are a telltale sign this part needs replacement.

• OEM Part Numbers: 48VL400002 (original) | Direct OEM replacement: 50HJ403022 — same factory-spec electrode, updated part number. Ships as current production replacement.
• OEM vs Generic: OEM Carrier spark electrodes are precision-gapped and rated for the exact spark energy output required by the PY3GNAA48115AA burner assembly. Generic electrodes with improper gap spacing cause repeated ignition misfires, accelerated control board wear, and nuisance lockouts.
• Install Difficulty: 2/5 — Turn off gas supply and disconnect power before servicing. Tools needed: 1/4" nut driver, flathead screwdriver, needle-nose pliers. Handle the ceramic electrode body carefully — do not touch the tip or drop the assembly. Document wire routing before disconnecting ignition leads.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered specifically for the Carrier PY3GNAA48115AA packaged gas/electric rooftop unit. OEM part number 48VL400002 has been superseded by 50HJ403022 — both numbers are cross-referenced and the current replacement ships under the updated part number. Verify your model data plate and existing ignitor configuration before ordering. Our fitment team is available to confirm compatibility before you buy.