OEM Carrier Spark Electrode Ignitor (48VL400002) for Model PY3GNA030040AA

This is the factory OEM spark electrode ignitor assembly for the Carrier PY3GNA030040AA packaged gas heating and cooling system. The ignitor is a critical component in the furnace ignition sequence — it generates the high-voltage spark that ignites the gas burners during each heating cycle. When this part fails, the control board will attempt ignition, detect no flame, and trigger a safety lockout, leaving your system with no heat. Common symptoms include repeated ignition attempts with no burner light-off, error codes indicating ignition failure, and the system locking out after 2–3 tries.

• OEM Part Number: 48VL400002 | Current Replacement P/N: 50HJ403022 | Factory Authorized Parts™ — exact fit, no modification required
• OEM vs Generic: OEM igniters are manufactured to Carrier's exact spark gap, electrode material, and bracket geometry specifications. Aftermarket alternatives may produce inconsistent spark timing, leading to unreliable ignition, premature failure, or nuisance lockouts that shorten heat exchanger life.
• Install Difficulty: 3/5 — Shut off gas supply and 24V power before servicing. Tools needed: 1/4" and 5/16" nut driver, flathead screwdriver, needle-nose pliers. Always verify gas is off before disconnecting the electrode assembly. Allow system to cool completely before handling.
• Warranty: 1-year OEM factory warranty against manufacturing defects. Ships same business day from our climate-controlled warehouse.

Compatibility: Designed specifically for the Carrier PY3GNA030040AA packaged gas/electric system. Note: OEM part 48VL400002 has been superseded by replacement part number 50HJ403022 — both are listed for complete cross-reference coverage. Verify your unit's data plate and wiring diagram before installation. Have a fitment question? Our HVAC-certified team confirms compatibility before every order — call or chat us today. In stock and ships today.