OEM Carrier Spark Electrode Ignitor for Model PY4GPAA48115AA (48VL400002 / 50HJ403022)

This OEM Carrier spark electrode ignitor is the factory-specified replacement for the Carrier PY4GPAA48115AA packaged gas/electric unit. The spark electrode ignitor is a critical component in the ignition sequence: on every call for heat, the control board energizes the ignitor to generate a high-voltage spark that lights the burner assembly. When this part fails, the unit will attempt ignition, fail to establish flame, and enter a safety lockout — leaving your space without heat. Common symptoms include a single audible click with no ignition, repeated ignition attempts followed by lockout, or an error code indicating ignition failure.

• OEM Part Numbers: 48VL400002 (original) | 50HJ403022 (current OEM replacement) — both are factory-authorized Carrier parts for this unit
• OEM vs Generic: OEM igniters are manufactured to Carrier's exact electrode gap, ceramic insulator rating, and cable specifications. Off-brand electrodes frequently exhibit inconsistent spark gap tolerances, premature ceramic cracking, and incompatible connector terminations that can cause intermittent lockouts and shorten ignition module life.
• Install Difficulty: 2/5 — Shut off gas supply and disconnect power before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Note electrode gap and cable routing before removal. Do not touch the ceramic insulator body — skin oils accelerate cracking under heat. Typical service time: 20–30 minutes.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered by cutoff time.

Compatibility: Engineered for the Carrier PY4GPAA48115AA packaged gas/electric rooftop unit. OEM part number 48VL400002 has been superseded by Carrier OEM part 50HJ403022 — both are stocked and ship the same day. Verify your unit's data plate and existing ignitor connector style before ordering. Our technical team is available to confirm fitment before you buy.