OEM Carrier Spark Electrode Ignitor 48GS400168 for Model PY1PNB030040AAAA

This is the genuine OEM Carrier spark electrode ignitor assembly (part #48GS400168), factory-specified for the Carrier PY1PNB030040AAAA gas pack unit. The spark electrode ignitor is responsible for initiating combustion each time the system calls for heat. When it fails or degrades, the control board will attempt ignition, detect no flame, and lock the system out — leaving you with no heat. Common failure symptoms include repeated ignition lockouts, a blinking fault code on the control board, or the system cycling on and off without ever sustaining a flame.

• Part Number: 48GS400168 | OEM Carrier Factory Authorized Part | Ignitor/Electrode Assembly | Made in the USA
• OEM vs Generic: This genuine OEM ignitor is built to exact Carrier factory tolerances. Aftermarket electrodes often use inferior alloys that erode faster, misfire under low-voltage conditions, or fail to seat correctly in the burner assembly — leading to premature callbacks and warranty complications.
• Install Difficulty: 2/5 — Shut off gas supply and 24V power before beginning. Tools needed: 1/4" nut driver, flathead screwdriver, needle-nose pliers. Disconnect the ignitor lead wire, remove the mounting screw(s), and swap the electrode. Always verify electrode gap per the unit's service manual before restoring power.
• Warranty: 1-year OEM manufacturer warranty. In stock — ships same business day from our warehouse.

Compatibility: Engineered as a direct drop-in replacement for the Carrier PY1PNB030040AAAA packaged gas unit. This ignitor is part of the 48GS gas pack ignitor assembly family and connects directly to the 24V control board using original wiring and connectors — no modifications required. Verify your model and serial number against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy.