OEM Carrier Spark Electrode Ignitor (48GS400168) for Model PY2PNB024040AB

This OEM spark electrode ignitor assembly is the factory-specified replacement for the Carrier PY2PNB024040AB packaged gas unit. The ignitor initiates combustion by generating a high-voltage spark at the burner assembly. When this component fails, the unit will attempt ignition, fail to light, and go into safety lockout — leaving you with no heat. Common symptoms include repeated ignition attempts with no flame, error codes indicating ignition failure, or a unit that clicks but never fires.

• Specs: 2-rod spark electrode ignitor assembly | Factory Authorized Part | OEM part number 48GS400168 | Direct drop-in replacement — no modifications required
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, built to exact electrode gap and ceramic insulator specifications. Aftermarket igniters often use inferior ceramics that crack under thermal cycling, causing intermittent ignition failures and premature re-replacement.
• Install Difficulty: 2/5 — Turn off gas supply and 24V control power before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Disconnect the ignitor wiring harness, remove the mounting screws, swap the assembly, and verify electrode gap matches OEM spec before reassembly.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PY2PNB024040AB packaged gas/electric unit. Always verify your unit's model and serial number on the data plate before ordering. Not sure it fits? Our parts team confirms fitment before you buy — fast and free.