OEM Carrier Hot Surface Igniter LH33ZS004 for Model PG9MAA024060AEKA

This is the genuine OEM hot surface igniter (part number LH33ZS004) factory-specified for the Carrier PG9MAA024060AEKA gas furnace. The hot surface igniter is the critical component that heats to approximately 1800°F and ignites the gas burner on every call for heat. When it fails — due to cracking, aging, or electrical fault — the furnace control board will attempt ignition, find no flame, and lock out, leaving you with no heat. Common symptoms include a furnace that tries to start but shuts down after one or two ignition attempts, a no-heat fault code on the control board, or a visibly cracked or broken igniter element.

• Specs: 120V AC | 5 Amp draw | Silicon carbide element | OEM part number LH33ZS004 | Factory-matched geometry and lead wire harness
• OEM vs Generic: The OEM LH33ZS004 is manufactured to Carrier's exact material and dimensional tolerances. Generic igniters may use inferior carbide blends that crack prematurely under thermal cycling, leading to repeat failures within one heating season.
• Install difficulty: 2/5 — Turn off power and gas before beginning. Tools needed: 1/4" nut driver or 5/16" hex driver, needle-nose pliers. Handle the igniter element only by its ceramic base — never touch the carbide element with bare hands, as skin oils will cause premature failure. Verify ignition sequence after installation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PG9MAA024060AEKA gas furnaces. Also cross-references LH33ZS003, LH33ZS002, and LH33ZS001 superseded part numbers. Always verify your existing igniter's voltage and amperage against your unit's data plate before ordering. Have a fitment question? Our HVAC parts specialists verify compatibility before you buy — reach out before checkout.