OEM Carrier Spark Electrode Ignitor LH33WZ008 for Model PY1PNA042120ACBA

This is the genuine OEM Carrier spark electrode ignitor (part number LH33WZ008), factory-specified for the Carrier PY1PNA042120ACBA packaged unit. The spark electrode ignitor is a critical component in the gas ignition sequence: after the draft inducer clears the heat exchanger, the ignitor energizes and must reach the precise temperature required to light the main burners. A failed ignitor typically results in a no-heat lockout condition — the furnace or packaged unit will attempt ignition up to three times, then lock out and require a manual power reset. Common symptoms of a failing ignitor include no visible glow, intermittent heating, or a system that starts briefly but fails to sustain a flame.

• Part Number: LH33WZ008 | OEM Carrier Spark Electrode Ignitor | Factory-matched direct replacement for the PY1PNA042120ACBA
• OEM vs Generic: This is a genuine Carrier OEM part, manufactured to exact factory specifications. Aftermarket igniters can vary in electrode gap, wire harness length, and ceramic insulator grade — all of which affect reliable ignition. OEM ensures a fit-and-fire replacement with no guesswork.
• Install Difficulty: 2/5 — Turn off power and gas supply before beginning. Tools needed: 1/4" or 5/16" nut driver, needle-nose pliers. Note: spark electrode igniters are fragile — never handle the ceramic tip with bare hands, as skin oils can cause premature failure. Photograph existing wiring before disconnecting.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier PY1PNA042120ACBA packaged unit. Verify part number LH33WZ008 against your unit's data plate or wiring diagram before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us today and get your system back up and running fast.