OEM Carrier Hot Surface Igniter LH33WZ010 for Model LC3:50HE401223

This is the OEM factory-specified hot surface spark electrode igniter (part number LH33WZ010) for the Carrier LC3:50HE401223 packaged heating unit. The igniter is the first critical component in the furnace ignition sequence — it heats to ignition temperature and triggers the gas valve to open. When it fails, the control board will attempt ignition, detect no flame, and lock out the system, leaving you with no heat. Common symptoms include a furnace that cycles repeatedly without lighting, a cracked or visibly broken igniter element, or a system that enters hard lockout after three failed ignition attempts.

• Specs: OEM Part Number LH33WZ010 | Spark Electrode Igniter type | Factory-matched element geometry and electrical ratings for Carrier LC3:50HE401223 | Exact OEM replacement — no modification required
• OEM vs Generic: OEM igniters are manufactured to precise resistance and fragility tolerances specified by Carrier engineering. Generic igniters frequently carry mismatched resistance values, causing nuisance lockouts or premature element fracture — especially in cold-start conditions.
• Install Difficulty: 3/5 — Always disconnect power and shut off gas before servicing. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (to verify element continuity). Handle the igniter element with care — never touch the ceramic or silicon element with bare hands; skin oils cause hot spots and early failure. Photograph all wiring connections before removal.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our NationalHVACParts.com warehouse.

Compatibility: Engineered specifically for the Carrier LC3:50HE401223 packaged heating system. Verify your OEM part number on the unit's data plate or existing igniter body matches LH33WZ010 before ordering. Not sure? Our parts specialists confirm fitment before you buy — no guesswork, no returns.