OEM Carrier Hot Surface Igniter LH33WZ010 for Model LC3:50HE400802

This is the OEM factory-specified hot surface spark electrode igniter for the Carrier LC3:50HE400802 packaged or split-system gas heating unit. The igniter is the first critical component in every heating cycle — it glows or sparks to ignite the gas burners when the control board calls for heat. When the igniter fails, the furnace or heat section will attempt ignition, fail to light, and enter a safety lockout — leaving you with a no-heat condition and typically a flashing fault code on the control board.

• Specs: Spark Electrode Igniter | OEM Part Number: LH33WZ010 | Factory-matched mounting geometry and electrode gap | Designed for Carrier gas heating applications
• OEM vs Generic: This OEM igniter is manufactured to exact Carrier tolerances for spark gap, ceramic insulator quality, and electrode material. Generic igniters frequently fail prematurely due to inferior ceramics that crack under thermal cycling, risking repeated no-heat calls and potential control board strain.
• Install Difficulty: 2/5 — Turn off gas supply and 24V power at the breaker before beginning. Tools needed: 1/4" and 5/16" nut driver, needle-nose pliers. Never touch the igniter element with bare hands — skin oils cause premature failure. Note wire connector orientation before unplugging.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our NationalHVACParts.com warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier LC3:50HE400802 gas heating equipment. Always verify your existing igniter type (spark electrode vs. silicon carbide/silicon nitride) and confirm OEM part number LH33WZ010 against your unit's data plate or wiring diagram before ordering. Our fitment team is available to confirm compatibility before you purchase — same-day shipping available on all in-stock orders placed before 3PM.