OEM Carrier Hot Surface Igniter for Model PY3PPA048115AA — Part #48GS400168

This OEM hot surface igniter (part number 48GS400168) is the factory-specified replacement for the Carrier PY3PPA048115AA packaged unit. The igniter is the critical first link in the heating sequence — it glows to ignition temperature (typically 1,800–2,500°F) to light the gas burner on each call for heat. When it fails, the furnace or packaged unit will attempt ignition, fail to establish flame, and lock out — leaving you with no heat. Common symptoms include repeated ignition attempts with no burner light-off, an error code indicating an ignition failure, or a visibly cracked or broken igniter element.

• Specs: Silicon igniter element | OEM part number 48GS400168 | Factory-matched resistance and wattage for Carrier PY3PPA048115AA | Plug-and-play OEM connector
• OEM vs Generic: This OEM igniter meets exact Carrier factory specifications for element resistance, heat-up time, and cycle life. Generic igniters often have off-spec wattage ratings that cause premature cracking, nuisance lockouts, or short service life.
• Install difficulty: 2/5 — Turn off gas and electrical power before beginning. Tools needed: 1/4" or 5/16" nut driver, work gloves (never touch the element with bare hands — skin oils cause premature failure), and a multimeter to verify element continuity before and after installation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PY3PPA048115AA packaged unit. Always verify your existing part number on the unit's wiring diagram or data plate before ordering. If you have compatibility questions, our HVAC parts specialists will confirm fitment before you purchase — no guesswork required. Order today for same-day shipping.