OEM Carrier Spark Electrode Ignitor 48VL400002 for Model PY4GNAA48115AA

This OEM spark electrode ignitor assembly is the factory-specified replacement for the Carrier PY4GNAA48115AA packaged gas unit. The spark electrode generates the high-voltage arc that ignites the gas burner on every call for heat. When this component fails, the control board will attempt ignition, detect no flame, and lock out — leaving you with a unit that attempts to start, clicks repeatedly, then shuts down and displays a fault code. Replacing the ignitor with the correct OEM assembly restores reliable, first-attempt ignition and prevents nuisance lockouts.

• Specs: OEM Part # 48VL400002 (superseded by 50HJ403022) | L-shaped electrode design | Ignitor length to L: 1 3/8" | Total ignitor length: 2 3/4" | Country of Origin: USA | Factory-matched gap and ceramic insulation
• OEM vs Generic: OEM electrodes maintain precise spark gap geometry and use factory-grade ceramic insulators. Generic igniters often have inconsistent gap tolerances, leading to weak sparks, delayed ignition, and accelerated wear on the gas valve and control board.
• Install difficulty: 2/5 — Turn off power and gas before beginning. Tools needed: 1/4" nut driver, flathead screwdriver, needle-nose pliers. Photograph the ignitor wire routing before disconnecting. Handle the ceramic electrode body carefully to avoid cracking. Do not touch the electrode tip with bare hands.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Directly fits Carrier model PY4GNAA48115AA packaged gas/electric rooftop unit. OEM part number 48VL400002 has been superseded by Carrier part number 50HJ403022 — both are the correct, factory-authorized replacement. Verify your unit's data plate and wiring harness connector type before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping on in-stock orders.