OEM Carrier Spark Electrode Ignitor 48GS400168 for Model PY3PNA042090NA

This is the genuine OEM Carrier spark electrode ignitor assembly, part number 48GS400168, factory-specified for the Carrier PY3PNA042090NA packaged unit. The spark electrode ignitor is a critical component in the gas ignition sequence — it generates the high-voltage spark that lights the burner when a call for heat is initiated. When this part fails, the unit will attempt ignition, fail to establish flame, and enter a safety lockout, leaving you with no heat and a fault code on the control board.

• Part Number: 48GS400168 | OEM Carrier Spark Electrode Ignitor Assembly | Replaces PSE-CE15 | Factory-authorized genuine Carrier part
• OEM vs Generic: This is a genuine Carrier OEM ignitor — not an aftermarket substitute. OEM electrodes maintain exact spark gap geometry and ceramic insulator ratings, ensuring reliable ignition and preventing nuisance lockouts that poorly toleranced generic parts can cause.
• Install Difficulty: 2/5 — Shut off gas and power before servicing. Tools needed: 1/4" nut driver, flat-head screwdriver, needle-nose pliers. Photograph wiring and electrode position before removal. Handle ceramic insulator carefully to avoid cracking.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for the Carrier PY3PNA042090NA packaged gas/electric unit. Verify your model and serial number against your unit's data plate before ordering. Not sure it fits? Our parts specialists confirm fitment before you buy — ships fast so your system is back up and running today.