OEM Carrier Spark Electrode Ignitor (48GS400168) for Model PY3PPA048115AB

This is the genuine OEM spark electrode ignitor assembly for the Carrier PY3PPA048115AB packaged gas unit. The ignitor is responsible for initiating combustion in the heat exchanger — when it fails, the control board will attempt ignition, find no flame signal, and lock out the unit, leaving you with a system that runs the inducer but delivers no heat. Common symptoms include repeated ignition attempts followed by a hard lockout fault code, or a furnace that lights momentarily and then shuts off entirely.

• OEM Part Number: 48GS400168 | Also known as Spark Electrode Ignitor Assembly | Replaces PSE-CE15 | Factory Authorized Carrier part
• OEM vs Generic: This is a genuine Carrier factory-authorized ignitor, manufactured to exact dimensional and electrical tolerances. Off-brand igniters often use inferior ceramic materials that crack prematurely under thermal stress, causing repeat failures within one heating season.
• Install Difficulty: 2/5 — Turn off power and gas supply before beginning. Tools needed: 1/4" nut driver, flat-head screwdriver, needle-nose pliers. Photograph existing wiring and electrode positioning before disconnecting. The ceramic ignitor body is fragile — handle only by the porcelain insulator, never the tip.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY3PPA048115AB packaged gas/electric unit. Verify your unit's model and serial tag before ordering to confirm fitment. Our team is available to verify compatibility before you purchase — no guesswork, no returns.