OEM Carrier Spark Electrode Ignitor LH33WZ008 for Model PY1PNA018040ACBA

This is the genuine OEM Carrier Spark Electrode Ignitor LH33WZ008, the factory-specified replacement for the Carrier PY1PNA018040ACBA. The spark electrode ignitor is a critical component in your unit's ignition sequence: after the draft inducer clears the heat exchanger, the ignitor fires to light the main burners. When it fails or degrades, the control board will cycle through ignition attempts and ultimately lock out — leaving you with no heat. Common failure symptoms include repeated ignition attempts followed by a fault lockout code, a visibly cracked or broken electrode tip, or a unit that runs the inducer but never achieves flame.

• Part Number: LH33WZ008 | OEM Carrier Spark Electrode Ignitor | Manufacturer description: Spark Electrode Ignitor | Genuine Carrier factory part
• OEM vs Generic: This is an authentic OEM Carrier component — not an aftermarket substitute. OEM spark electrodes are manufactured to exact gap, material, and geometry specifications. Generic alternatives may produce inconsistent spark energy, leading to unreliable ignition, premature wear, or misfire codes.
• Install Difficulty: 2/5 — Disconnect power and gas supply before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify open circuit on old ignitor). Photograph all wire routing and connections before removal. Handle the electrode tip carefully — the ceramic insulator is fragile.
• 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 the Carrier PY1PNA018040ACBA. Always verify your unit's model and data plate before ordering. Our team is available to confirm fitment — reach out before you buy if you have any questions.