OEM Carrier Spark Electrode Ignitor 48GS400168 for Model PY3PNA036090AA

This is the genuine OEM Carrier spark electrode ignitor assembly, factory part number 48GS400168, designed as the direct-fit replacement for the Carrier PY3PNA036090AA packaged unit. The ignitor is responsible for generating the spark or surface heat that ignites the gas burner during each heating cycle. When this component fails, the control board will attempt ignition, detect no flame signal, and lock out the unit — leaving you with cold air and a fault code. Common symptoms include repeated ignition attempts with no flame, system lockout after 3 tries, or a visibly cracked/burned electrode tip.

• Part Number: 48GS400168 (also cross-references PSE-CE15) | Genuine Carrier OEM Ignitor/Electrode Assembly | Sold as a single assembly unit
• OEM vs Generic: This is a genuine Carrier factory part — not an aftermarket substitute. OEM igniters are manufactured to exact gap tolerances and ceramic insulator specs, ensuring reliable spark generation and preventing nuisance lockouts common with off-brand electrodes.
• Install Difficulty: 2/5 — Turn off gas supply and 24V control power before starting. Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter to verify spark gap continuity. Do not touch the ceramic insulator with bare hands — skin oils can cause premature cracking under heat cycling. Photograph wire routing before disconnecting.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PY3PNA036090AA packaged unit. Verify your existing part number on the unit's data plate or wiring diagram before ordering. If you need fitment confirmation, our HVAC parts team is standing by. Order now and get same-day shipping on in-stock OEM parts.