OEM Carrier Hot Surface Igniter LH33ZG001 for Model PG8JAA042090ACJA

This OEM hot surface igniter (part number LH33ZG001) is the factory-specified replacement for the Carrier PG8JAA042090ACJA gas furnace. The igniter is responsible for generating the high-temperature glow that ignites the gas burner at each heating cycle. When it fails — either through normal thermal fatigue or physical breakage — the furnace will attempt an ignition sequence, fail to light, and enter a safety lockout, leaving you with no heat. Common symptoms include the inducer motor running normally but the burners never firing, or a visible crack in the igniter element.

• Specs: Hot Surface Igniter | Silicon Nitride element (preferred for durability) | Factory OEM part number LH33ZG001 | Direct drop-in fit — no modifications required
• OEM vs Generic: This is a genuine Carrier OEM igniter built to exact factory resistance and temperature specifications. Generic igniters often deviate in wattage and element geometry, causing nuisance lockouts or premature failure within one heating season.
• Install Difficulty: 2/5 — Turn off gas supply and 120V power before servicing. Tools needed: 1/4" or 5/16" nut driver, needle-nose pliers. 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 base and wiring harness.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for the Carrier PG8JAA042090ACJA 80% AFUE gas furnace. Always confirm the part number on your existing igniter or your unit's wiring diagram before ordering. Our HVAC parts specialists are available to verify fitment — contact us before you buy if you have any questions.