OEM Carrier Hot Surface Igniter LH33ZG001 for Model PG9MAB048100AASA

This is the OEM factory-specified hot surface igniter (part number LH33ZG001) for the Carrier PG9MAB048100AASA packaged gas unit. The igniter is the first component called into action on every heating cycle — the control board energizes it to reach ignition temperature, and then the gas valve opens for burner light-off. When this part fails, the furnace will attempt ignition, fail to light the burners, and go into safety lockout — leaving you with no heat. Common symptoms include the unit cycling on and then shutting off after 30–90 seconds, or a fault code indicating an ignition failure on the control board.

• Part Number & Specs: OEM Part # LH33ZG001 | 120V hot surface igniter | Silicon nitride element | Lightweight 0.07 lb component | Factory-matched plug connector for drop-in installation
• OEM vs Generic: This is a genuine Carrier OEM igniter manufactured to exact factory tolerances. Generic igniters may differ in element geometry, wattage draw, or connector type — all of which can cause nuisance lockouts or premature failure. OEM is always the recommended choice for reliable, long-term performance.
• Install Difficulty: 3/5 — De-energize the unit at the disconnect and wait for the igniter to fully cool before removal (it retains heat). Never touch the element with bare hands — skin oils will cause hot spots and crack the element. Tools needed: 1/4" nut driver, needle-nose pliers. Disconnect the harness plug, remove the mounting screw, and reverse for installation. Verify ignition sequence on first call for heat.
• Warranty & Shipping: 1-year OEM factory warranty. In stock and ships same business day from our warehouse. Questions about fitment? Our HVAC parts team verifies compatibility before you order.

Compatibility: Designed for the Carrier PG9MAB048100AASA packaged gas/electric unit. Always verify the part number against your unit's parts list or data plate before ordering. If you are unsure whether this igniter matches your specific serial number range, contact our team for a free fitment check.