OEM Carrier Hot Surface Igniter (LH33ZG001) for Model PG8JAA048090ACJA

This OEM hot surface igniter is the factory-specified replacement for the Carrier PG8JAA048090ACJA packaged gas unit. During every call for heat, the control board energizes the igniter to bring its silicon nitride element to over 1,800°F — hot enough to reliably light the gas burner. When the igniter fails, the furnace will attempt ignition, fail to light the burner, and enter a safety lockout — leaving you with no heat. A cracked, contaminated, or electrically open igniter element is the most common cause of this fault.

• Part Number: LH33ZG001 | OEM Carrier silicon nitride hot surface igniter | Includes bracket and wiring harness connector for direct plug-in replacement
• OEM vs Generic: This is the genuine Carrier OEM part, manufactured to exact factory resistance and thermal specifications. Generic igniters frequently use lower-grade silicon carbide elements that are more brittle, have wider resistance tolerances, and fail prematurely — especially in packaged rooftop applications with temperature swings.
• Install difficulty: 2/5 — De-energize and lock out the unit before servicing. Never touch the igniter element with bare hands; skin oils cause hot spots that crack the element. Tools needed: 1/4" nut driver, needle-nose pliers. Disconnect harness, remove mounting screw, swap igniter, reconnect harness, and verify ignition sequence through one full heat cycle.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse in original manufacturer packaging.

Compatibility: Engineered for the Carrier PG8JAA048090ACJA packaged gas heating unit. Verify your existing part number on the unit's wiring diagram or parts label before ordering. Our team is available to confirm fitment prior to purchase — we want to make sure you get the right part the first time.