OEM Carrier Spark Electrode Ignitor Assembly 48VL400002 for Model PY4GNAB42060NA

This OEM Carrier spark electrode ignitor assembly (part 48VL400002, superseded by 50HJ403022) is the factory-specified replacement ignitor for the Carrier PY4GNAB42060NA packaged gas unit. The spark electrode generates the high-voltage arc that directly ignites the gas burner on each heating call. When this component fails, the control board will attempt ignition one to three times, then lock out — leaving you with a blinking fault code and no heat. Common failure symptoms include the system attempting to light with an audible click but no flame, repeated ignition lockouts, or a visibly cracked or carbon-fouled electrode tip.

• Part Numbers: OEM part 48VL400002 | Current superseding OEM part: 50HJ403022 | Factory Authorized Parts (FAP) for Carrier, Bryant & Payne equipment
• OEM vs Generic: OEM spark electrodes are precision-gapped and rated to factory ceramic insulator specs. Aftermarket electrodes frequently suffer from incorrect gap spacing or inferior ceramic that cracks under thermal cycling, causing repeat no-ignition calls.
• Install Difficulty: 2/5 — Shut off gas supply and disconnect power at the disconnect box before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Photograph the existing electrode position and wire routing before removal. Avoid touching the ceramic insulator with bare hands — skin oils accelerate ceramic degradation.
• Warranty: 1-year OEM factory warranty against manufacturing defects. Ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PY4GNAB42060NA packaged rooftop/gas unit. Note that OEM part 48VL400002 has been superseded by Carrier part 50HJ403022 — both part numbers are fulfilled with the current production version. Always verify your unit's model and serial data plate before ordering. Our team is available to confirm fitment prior to purchase.