OEM Carrier Spark Electrode Ignitor for Model PY4GEAB60090AA (48VL400002 / 50HJ403022)

This is the OEM factory-specified spark electrode ignitor assembly for the Carrier PY4GEAB60090AA packaged gas/electric unit. The ignitor generates the high-voltage spark that ignites the gas burner during each heating cycle. When it 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 failure symptoms include a repeated no-heat lockout, error codes indicating ignition failure, or visible cracks/carbon tracking on the electrode tip.

• OEM Part Numbers: 48VL400002 (original) | 50HJ403022 (current OEM replacement) — both are genuine Carrier factory-authorized parts meeting exact ignition geometry and ceramic insulator specifications for the PY4GEAB60090AA.
• OEM vs Generic: OEM electrodes maintain precise spark gap tolerances and use high-grade ceramic insulators rated for sustained high-voltage cycling. Generic igniters frequently use lower-grade ceramic that cracks under thermal stress, leading to premature re-failure and repeat service calls.
• Install Difficulty: 2/5 — Shut off gas supply and 24V control power before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Disconnect ignition wire and ground lead, remove mounting screws, swap electrode, verify spark gap per service manual. Always confirm gas is off before handling burner components.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our stocked warehouse.

Compatibility: Designed for the Carrier PY4GEAB60090AA packaged unit. Note that OEM part 48VL400002 has been superseded by Carrier part 50HJ403022 — both are genuine OEM and either is the correct replacement for this model. Verify your existing electrode's mounting configuration before ordering. Have questions about fitment? Our HVAC parts team confirms compatibility before you check out — in stock and ready to ship today.