OEM Carrier Spark Electrode Igniter Assembly for Model PY4GNAA60090AA

This is the factory OEM spark electrode igniter assembly for the Carrier PY4GNAA60090AA packaged gas unit. The spark electrode igniter is a critical component in the burner ignition sequence — it generates the high-voltage spark that ignites the gas-air mixture at the burner. When this part fails, the control board will attempt ignition, detect no flame signal, and lock out the unit, leaving you with a system that runs the inducer but produces no heat. You may also see a flashing fault code on the control board indicating an ignition failure.

• Part Numbers: OEM part 48VL400002 (superseded by Carrier 50HJ403022) | Factory-direct igniter assembly with electrode rod and mounting bracket | Genuine Carrier OEM specification
• OEM vs Generic: OEM electrodes are manufactured to exact gap spacing, ceramic insulator grade, and rod geometry required by the Carrier burner assembly. Off-brand electrodes risk inconsistent spark gap, cracked insulators, and repeat lockouts — costing more in service calls than the part itself.
• Install Difficulty: 2/5 — Shut off gas supply and 24V control power before beginning. Tools needed: 1/4" and 5/16" nut driver, flat-head screwdriver, needle-nose pliers. Note the electrode wire routing and connector orientation before disconnecting. Handle the ceramic insulator carefully — do not drop or over-tighten mounting screws.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PY4GNAA60090AA packaged rooftop/gas unit. Note: OEM part number 48VL400002 has been superseded by Carrier replacement part 50HJ403022 — this is the current factory-authorized replacement and a direct, drop-in fit. Always verify your unit's data plate and wiring harness connector type before ordering. Our team is available to confirm fitment before you buy.