OEM Carrier Spark Electrode Ignitor (48VL400002 / 50HJ403022) for Model PY4GPAB48115AA

This OEM Carrier spark electrode ignitor is the factory-specified replacement for the Carrier PY4GPAB48115AA packaged gas unit. The ignitor generates the high-voltage spark that ignites the gas burner on every call for heat. When this component fails, the control board will attempt ignition, detect no flame, and enter a safety lockout — leaving you with a blower running but no heat output. A failed ignitor is one of the most common causes of a no-heat service call on Carrier packaged rooftop and gas-electric units.

• Part Numbers: OEM part 48VL400002 (Spark Electrode Ignitor) | Current OEM successor: 50HJ403022 — direct factory replacement, same fit and function
• OEM vs Generic: Factory OEM igniters are manufactured to exact electrode gap, ceramic insulator grade, and wire harness specifications. Off-brand substitutes frequently exhibit inconsistent spark timing and premature ceramic cracking, leading to repeat service calls.
• Install Difficulty: 2/5 — Shut off gas supply and 120V power before starting. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Photograph all wire connections before disconnecting. Avoid touching the ceramic electrode body with bare hands — skin oils accelerate cracking under heat cycling.
• Warranty: 1-year OEM factory warranty against manufacturing defects. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY4GPAB48115AA gas-electric packaged unit. Note that OEM part number 48VL400002 has been superseded by Carrier part 50HJ403022 — both numbers are fulfilled with the current production ignitor assembly. Verify your unit's model and data plate before ordering. Our fitment team is available to confirm compatibility before you buy.