OEM Carrier Hot Surface Ignitor Replacement Kit 120V for Model PG8MAA048090ABJA

This is the factory OEM hot surface ignitor replacement kit (part #331930-751) for the Carrier PG8MAA048090ABJA gas furnace. The hot surface ignitor is the first component to activate in every heating cycle — it glows to ignition temperature within seconds to light the burners. When it fails, the furnace control board will attempt ignition, detect no flame, and lock out the system, leaving you with a cold house and a blinking fault code. This kit upgrades your furnace to the more durable silicon nitride ignitor element, which runs cooler and lasts significantly longer than the older silicon carbide type it replaces.

• Specs: 120V hot surface ignitor (HSI) | Silicon nitride element | Fits 33-1/3" tall Carrier mid-efficiency furnace chassis | Includes OEM ignitor element, mounting bracket, and pre-wired wire harness — replaces legacy part numbers LH33ZS001, LH33ZS002, LH33ZS003, and LH33ZS004
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part (FAP), engineered to exact resistance and thermal specifications for the PG8MAA048090ABJA. Generic igniters often vary in element geometry and resistance tolerance, risking nuisance lockouts or premature burnout.
• Install difficulty: 2/5 — Turn off power and gas before beginning. Tools needed: 1/4" nut driver, needle-nose pliers. Disconnect the harness connector, remove the two mounting screws, swap the bracket and element, reconnect the harness. Critical: handle the new ignitor by the ceramic base only — skin oils on the silicon nitride element will cause premature failure.
• Warranty: 1-year OEM factory warranty on parts. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PG8MAA048090ABJA 80% AFUE gas furnace. Also cross-references to Bryant and Payne mid-efficiency furnace models sharing the 33-1/3" chassis. Confirm your existing part number on the furnace's data label or wiring diagram before ordering. Our fitment team is available to verify compatibility before you purchase.