OEM Carrier Spark Electrode Ignitor 48VL400002 for Model PY3GNAA30040NA

This OEM spark electrode ignitor assembly (part number 48VL400002) is the factory-specified replacement for the Carrier PY3GNAA30040NA packaged gas unit. The spark electrode ignitor generates the high-voltage electrical arc that ignites the gas burners during each heating cycle. When this component fails or degrades, the control board will attempt ignition, detect no flame, and trigger a lockout fault — leaving you with no heat. Common failure symptoms include the unit cycling through ignition attempts and locking out, a cracked or fouled electrode tip visible on inspection, or a persistent fault code indicating ignition failure.

• Part Number: 48VL400002 (OEM Carrier Spark Electrode Ignitor Assembly) | Superseded by Carrier P/N 50HJ403022 — same factory-matched fit and function
• OEM vs Generic: OEM electrodes are manufactured to exact gap and ceramic insulator specifications. Off-brand electrodes frequently suffer from improper arc gap, inferior ceramic insulation, and premature cracking — leading to repeat failures and potential nuisance lockouts.
• Install Difficulty: 2/5 — Disconnect power and shut off gas before starting. Tools needed: 1/4" nut driver, flathead screwdriver, needle-nose pliers. Handle the ceramic electrode tip carefully — do not touch with bare fingers, as skin oils degrade the insulator. Photograph wire routing before disconnecting the high-voltage lead.
• Warranty: 1-year OEM factory warranty against manufacturing defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered for the Carrier PY3GNAA30040NA packaged gas/electric unit. Always verify your unit's full model and serial number on the data plate before ordering. Note that 48VL400002 has been superseded by OEM part 50HJ403022 — both part numbers are fulfilled with the current production ignitor assembly. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — contact us and we'll confirm the correct part for your exact unit.