OEM Carrier Hot Surface Igniter LH33ZG001 for Model PG8JAA042090AFJA

This OEM hot surface igniter (part number LH33ZG001) is the factory-specified replacement for the Carrier PG8JAA042090AFJA gas furnace. The igniter is responsible for reaching the extreme temperatures required to light the gas burners on each heating cycle. When it fails, the furnace will attempt ignition, fail to light, and enter a safety lockout — leaving you with no heat. Common symptoms include the inducer running normally but the burners never firing, or a visible crack in the igniter element upon inspection.

• Specs: Hot surface igniter | Silicon nitride construction | Factory OEM tolerance | Direct drop-in replacement for Carrier PG8JAA042090AFJA — no modification required
• OEM vs Generic: This is a genuine Carrier OEM igniter manufactured to exact factory specifications. Generic igniters vary in resistance rating and element geometry, which can cause premature failure or delayed ignition that stresses the heat exchanger over time.
• Install Difficulty: 2/5 — Always disconnect power before servicing. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers. Critical: Never touch the igniter element with bare hands — skin oils cause hot spots that crack the element. Use gloves or handle only by the ceramic mounting bracket.
• Warranty: 1-year OEM factory warranty against defects. Orders ship same business day when placed before 3 PM local time.

Compatibility: Designed and verified for the Carrier PG8JAA042090AFJA packaged gas furnace. Always cross-reference the OEM part number LH33ZG001 against your unit's data plate or wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy if you have any questions.