OEM Carrier Spark Electrode Ignitor Assembly for Model PY3GNA042060NB

This OEM spark electrode ignitor assembly is the factory-specified replacement for the Carrier PY3GNA042060NB packaged gas/electric rooftop unit. The spark electrode ignitor generates the high-voltage arc that ignites the gas burner on each heating call. When this component fails, the control board will attempt ignition, detect no flame, and lock out the unit — leaving you with a blower running but no heat. Common failure symptoms include repeated ignition lockouts, a visible cracked or fouled electrode tip, or carbon tracking along the ceramic insulator.

• OEM Part Numbers: 48VL400002 (superseded) | 48GS400168 (current active replacement) | Also superseded by 50HJ403022 — all are factory-compatible for this application
• OEM vs Generic: Genuine Carrier OEM electrodes are manufactured to exact gap, ceramic insulation, and wire harness specifications. Off-brand electrodes frequently exhibit inconsistent spark gap tolerances, leading to premature re-lockout and nuisance service calls.
• Install Difficulty: 2/5 — Disconnect power and shut off gas supply before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Photograph existing wiring routing before removal. The electrode mounts to the burner assembly with two screws and unplugs from the ignition wire harness.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered by 3:00 PM local time.

Compatibility: Engineered for the Carrier PY3GNA042060NB packaged gas rooftop unit. The PY3GNA series is a commercial-grade gas/electric package unit; always verify your unit's data plate model number and existing electrode part number before ordering to ensure correct fitment. Questions about compatibility? Our HVAC parts specialists verify fitment before you order — no guesswork.