OEM Carrier Spark Electrode Ignitor (48GS400168) for Model PY2PEB048090AA

This is the genuine OEM spark electrode ignitor assembly for the Carrier PY2PEB048090AA packaged heating and cooling unit. The ignitor is the first critical link in the gas ignition sequence — it generates the high-voltage spark that lights the burner on every call for heat. When this component fails or degrades, the control board detects a missed ignition event and puts the system into lockout, leaving you with a no-heat call. Typical failure symptoms include the system attempting ignition (you may hear clicking) but failing to light, followed by a fault code lockout after one to three tries.

• OEM Part Number: 48GS400168 | Manufacturer description: Spark Electrode Ignitor Assembly | Replaces PSE-CE15 | Genuine Carrier Factory Authorized Part
• OEM vs Generic: OEM electrodes are manufactured to exact gap spacing and ceramic insulator specifications. Generic substitutes frequently ship with incorrect electrode geometry, leading to weak or intermittent spark arcs and repeat no-heat calls.
• Install Difficulty: 2/5 — Shut off gas supply and disconnect power before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Photograph all wire connections before removing the old assembly. Avoid touching the ceramic insulator — oils from skin can cause premature cracking under heat cycling.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Factory-specified replacement for Carrier model PY2PEB048090AA packaged units. Verify your existing part number on the unit's data plate or wiring diagram before ordering. Not sure if this fits? Our parts team confirms fitment before you buy — no guesswork, no returns.