OEM Carrier Spark Electrode Ignitor 48GS400168 for Model PY3PNA048115AA

This is the genuine OEM Carrier spark electrode ignitor assembly (part number 48GS400168), factory-specified for the Carrier PY3PNA048115AA packaged unit. The ignitor is the first critical component in the heating sequence — it generates the spark or surface heat needed to ignite the burner. When it fails, the unit will attempt ignition, fail to light, and enter a safety lockout — leaving you with no heat. Common failure signs include repeated ignition attempts with no flame, a blinking fault code on the control board, or a unit that locks out after 2–3 ignition tries.

• Part Number: 48GS400168 | Also replaces PSE-CE15 | Factory Authorized Carrier OEM part
• OEM vs Generic: OEM igniters are manufactured to exact factory arc-gap and ceramic specifications. Aftermarket electrodes frequently have inconsistent gap tolerances, leading to intermittent ignition failures and premature cracking of the ceramic insulator.
• Install Difficulty: 2/5 — Shut off gas and power before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Photograph existing wiring and electrode orientation before removal. Handle the ceramic tip carefully — do not touch with bare hands or allow contact with oils.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct drop-in replacement for the Carrier PY3PNA048115AA packaged gas/electric unit. Verify your existing part number on the unit's data plate or existing ignitor body before ordering. Our fitment team is available to confirm compatibility before you purchase — no guesswork required.