OEM Carrier Hot Surface Igniter (Spark Electrode) 48GS400168 for Model PY1PNB024040AAAA

This is the OEM factory-specified hot surface igniter (spark electrode) for the Carrier PY1PNB024040AAAA packaged heating and cooling unit. The igniter is the first component activated in every heating cycle — it heats to over 2,000°F to light the gas burner reliably and safely. When this part fails, the control board will detect a failed ignition attempt and trigger a system lockout, leaving you with no heat. Common symptoms include the inducer motor running normally but the burners never lighting, or the system cycling through ignition attempts before locking out.

• Specs: Silicon nitride spark electrode igniter | OEM part number 48GS400168 | Factory-matched mounting geometry and lead length | Rated for high-cycle residential and light-commercial applications
• OEM vs Generic: This is a genuine OEM Carrier igniter built to exact factory tolerances. Generic igniters frequently vary in tip geometry, lead length, and temperature rating — causing premature cracking, misfire, or repeated lockouts. OEM is always the recommended replacement for longevity and reliable ignition.
• Install difficulty: 3/5 — Always shut off gas and electrical power before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter (to verify continuity across igniter terminals — typical resistance 40–75 Ω). Handle the igniter ceramic body with care; skin oils can cause premature failure. Photograph all wiring connections before disconnecting.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for the Carrier PY1PNB024040AAAA packaged unit. Always cross-reference the OEM part number 48GS400168 on your unit's data plate or wiring diagram before ordering to confirm fitment. Not sure it's the right part? Our HVAC parts specialists verify fitment before you buy — reach out before placing your order.