OEM Carrier Spark Electrode Ignitor Assembly 48GS400168 for Model PY2PNB042090NB

This OEM spark electrode ignitor assembly (part# 48GS400168) is the factory-specified replacement for the Carrier PY2PNB042090NB packaged gas/electric unit. The ignitor assembly generates the high-voltage spark that ignites the gas burner during each heating cycle. When this component fails, the unit will attempt ignition, fail to establish a flame, and enter a safety lockout — leaving you with no heat and a flashing fault code on the control board.

• Specs: 2-rod spark electrode ignitor assembly | Factory OEM part# 48GS400168 | Designed for 48GS-series gas pack units | Dimensions approx. 3.80" × 1.40" × 4.90" | Weight: 0.07 lbs
• OEM vs Generic: This is a genuine Carrier OEM ignitor/electrode assembly crafted to exact factory specifications. Generic igniters may use inferior ceramic insulators or imprecise electrode gap tolerances, risking repeated misfire, nuisance lockouts, and accelerated wear on the control board.
• Install difficulty: 2/5 — Turn off gas supply and 24V/line voltage before beginning. Tools needed: 1/4" nut driver, needle-nose pliers, and a flashlight. Photograph the electrode wire routing before removal. Reset the control board after installation to clear the lockout fault.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM fit for the Carrier PY2PNB042090NB packaged gas/electric unit. Verify your model and serial number on the unit's data plate before ordering. Not sure it's the right part? Our HVAC parts specialists confirm fitment before you buy — no guesswork, no returns.