OEM Carrier Hot Surface Igniter LH33ZG001 for Model PG8JAA042090ADJA

This is the genuine OEM hot surface igniter (part number LH33ZG001) factory-specified for the Carrier PG8JAA042090ADJA packaged gas unit. The igniter is the first component to activate on every call for heat — the control board energizes it to glow at over 1,800°F, providing the ignition source that lights the gas burner. When the igniter fails, the furnace will attempt ignition, fail to sense flame, and enter a hard lockout — leaving you with no heat and a flashing fault code. Cracked elements, contamination from skin oils, or simple age-related resistance drift are the most common causes of failure.

• Specs: 120V hot surface igniter | Silicon nitride element | Includes mounting bracket and wiring harness | Factory-matched resistance tolerance for reliable light-off
• OEM vs Generic: This is a genuine Carrier OEM part, manufactured to exact factory specifications. Aftermarket igniters frequently exhibit resistance values outside the control board's ignition window, causing nuisance lockouts or premature re-failure within one heating season.
• Install difficulty: 2/5 — Turn off gas supply and disconnect power before beginning. Tools needed: 1/4" nut driver, needle-nose pliers. Critical: Never touch the igniter element with bare hands — skin oils cause hot spots that crack the element. Handle only by the bracket or harness. Verify ignition sequence via control board LED after installation.
• 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 PG8JAA042090ADJA packaged gas unit. Verify your existing igniter's part number against LH33ZG001 before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — reach out before placing your order.