OEM Carrier Spark Electrode Ignitor 48VL400002 for Model PY4GNAB60090AA

This is the OEM factory-specified spark electrode ignitor for the Carrier PY4GNAB60090AA packaged gas unit. The spark electrode ignitor is the critical component responsible for igniting the gas burner during every heating cycle. When this part fails, the control board will attempt ignition, detect no flame, and lock out the system — leaving you with a unit that calls for heat but delivers none. Common symptoms include repeated ignition attempts followed by a hard lockout fault code, or a visible crack or carbon tracking on the ceramic electrode body.

• OEM Part Number: 48VL400002 (superseded by Carrier OEM part 50HJ403022) | Factory Authorized Parts designation | Genuine Carrier spark electrode assembly
• OEM vs Generic: OEM igniters are manufactured to exact Carrier spark gap, ceramic grade, and wire harness specifications. Aftermarket electrodes frequently exhibit premature ceramic cracking or inconsistent spark gap tolerances, leading to nuisance lockouts and repeat service calls.
• Install Difficulty: 3/5 — Disconnect power and shut off gas supply before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, and a multimeter to verify ignition circuit continuity. Photograph all wire harness connections before removal. Handle ceramic electrode body with care — do not touch with bare hands, as skin oils can cause premature failure.
• Warranty: 1-year OEM manufacturer warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement ignitor for the Carrier PY4GNAB60090AA packaged gas/electric unit. Original part number 48VL400002 has been superseded by Carrier OEM part 50HJ403022 — both numbers are cross-referenced and the current production part ships in its place. Always verify your unit's data plate and wiring diagram before ordering. Our parts specialists are available to confirm fitment before you buy — no heat, no problem. Order now and ship today.