OEM Carrier Hot Surface Igniter (48GS400168) for Model PY3PEA048090AA

This is the factory OEM spark electrode igniter for the Carrier PY3PEA048090AA packaged heating and cooling unit. The igniter is the critical first link in the furnace ignition sequence — it glows to ignition temperature to light the burner assembly. When it fails or cracks, the control board detects an unsuccessful ignition attempt and locks out the system, leaving you with a cold home and a blinking fault code. Replacing the igniter with the correct OEM part (part number 48GS400168) restores the factory ignition sequence and prevents nuisance lockouts caused by out-of-spec resistance or improper fit.

• Specs: Spark electrode / hot surface igniter | OEM part number 48GS400168 | Factory-matched resistance and geometry for Carrier PY3PEA048090AA | 120V operation
• OEM vs Generic: OEM igniters are built to exact resistance tolerances and bracket geometry specified by Carrier engineering. Generic igniters can vary in tip positioning and resistance, causing repeated ignition failures or premature cracking — costing more in callbacks than the OEM premium.
• Install difficulty: 3/5 — Always disconnect power and shut off gas before servicing. Tools needed: 1/4" nut driver, 5/16" nut driver, needle-nose pliers. Do NOT touch the ceramic igniter tip with bare hands — skin oils cause hot spots and early failure. Use gloves or a clean cloth throughout installation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PY3PEA048090AA packaged unit. Always confirm your model and serial number on the unit's data plate before ordering. Our HVAC parts specialists are available to verify fitment — contact us before you buy if you have any questions. Order by 3 PM local time and your part ships today.