OEM Carrier Spark Electrode Ignitor Assembly (48GS400168) for Model PY3PPA030040AA

This is the OEM factory-specified spark electrode ignitor assembly for the Carrier PY3PPA030040AA packaged heating and cooling unit. The ignitor's job is straightforward but critical: it generates the spark that lights the burner on every call for heat. When the electrode degrades, cracks, or burns out, the control board detects a failed ignition attempt and immediately locks out the unit — leaving you with a system that runs its inducer, attempts ignition, then shuts down without producing any heat. Replacing the ignitor with an OEM-matched assembly restores the factory ignition arc geometry and eliminates nuisance lockouts.

• OEM Part Number: 48GS400168 | Manufacturer description: Spark Electrode Ignitor Assembly | Replaces PSE-CE15 | Genuine Carrier Factory Authorized Part
• OEM vs Generic: OEM electrode assemblies are manufactured to exact arc-gap and ceramic insulator specifications. Aftermarket units frequently have inconsistent electrode geometry, leading to intermittent spark and repeat no-heat callbacks — especially in cold weather.
• Install Difficulty: 2/5 — Disconnect power and shut off gas supply before servicing. Tools needed: 1/4" nut driver, needle-nose pliers. The electrode assembly typically unclips from the burner bracket and unplugs from the ignition wire. Always confirm the ignition wire connection is fully seated before restoring power.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PY3PPA030040AA packaged unit. Verify part number 48GS400168 against your unit's data plate or wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you buy if you have any questions. In stock and ready to ship today.