OEM Carrier Spark Electrode Ignitor Assembly 48GS400168 for Model PY3PPA048090NB

This is the genuine OEM spark electrode ignitor assembly (part number 48GS400168), factory-specified for the Carrier PY3PPA048090NB packaged gas/electric unit. The ignitor assembly initiates combustion by generating a high-voltage spark across a precisely gapped 2-rod electrode to light the gas burner. When this part fails, the system will attempt ignition, fail to establish flame, and enter a safety lockout — leaving you with no heat. Common failure symptoms include the inducer running normally but burners never lighting, repeated ignition attempt cycles, or a fault code indicating ignition failure on the control board.

• Part Specs: 2-rod spark electrode design | Factory-spec gap and ceramic insulator | OEM part number 48GS400168 | Designed for 48GS-series gas pack applications
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, manufactured to exact electrode gap and ceramic insulator tolerances. Generic igniters often have inconsistent gap spacing and lower-grade ceramics, leading to misfires, premature cracking, and repeat failures — especially in high-cycle commercial or residential packaged units.
• Install Difficulty: 2/5 — Turn off gas supply and 24V/line-voltage power at the disconnect before starting. Tools needed: 1/4" and 5/16" nut driver, needle-nose pliers. Photograph existing wiring harness routing before disconnecting. Handle ceramic insulator carefully — do not touch electrode tips with bare hands (skin oils reduce spark performance).
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse on all orders placed before cutoff.

Compatibility: Engineered as the direct OEM replacement for Carrier model PY3PPA048090NB packaged units. Always verify your unit's model and serial number against this part number before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions. Order now and get same-day shipping on in-stock parts.