OEM Carrier Hot Surface Igniter (LH33ZS004) for Model PG9MAA048060AAKA

This is the factory OEM hot surface igniter for the Carrier PG9MAA048060AAKA gas furnace, sold under Carrier part number LH33ZS004. The hot surface igniter is the first component to activate during every call for heat — it glows to ignition temperature to light the main burners. When it fails, the furnace control board initiates a lockout after one or more failed ignition attempts, leaving you with no heat. Common failure symptoms include the system attempting to start, the inducer running, but the burners never lighting — often accompanied by a fault code on the board.

• Specs: 120V AC | 5 Amp draw | Silicon carbide element | Factory-matched geometry for correct burner positioning | Includes bracket/gasket assembly (323901-701) for a complete, drop-in repair
• OEM vs Generic: OEM igniters are manufactured to exact Carrier electrical and dimensional tolerances. Aftermarket igniters frequently deviate in resistance value and element thickness, leading to premature cracking and repeat failures — especially during cold-start cycles.
• Install difficulty: 2/5 — Power down the furnace and allow the old igniter to fully cool before handling. Tools needed: 1/4" nut driver, needle-nose pliers. Never touch the silicon carbide element with bare hands — skin oils cause hot spots that crack the element. Reconnect the harness clip and verify ignition sequence before closing the panel.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM EST.

Compatibility: Engineered as a direct OEM replacement for the Carrier PG9MAA048060AAKA gas furnace. Also referenced by cross-part numbers LH33ZS003, LH33ZS002, and LH33ZS001. Verify your existing igniter's mounting configuration before ordering. Need help confirming fitment? Our HVAC parts specialists are available to verify compatibility before you buy — no guesswork, no return hassles.