OEM Carrier Hot Surface Igniter LH33ZS004 for Model PG9MAA060120AAKA

This is the OEM factory-specified hot surface igniter for the Carrier PG9MAA060120AAKA gas furnace. The igniter is the first active component in the ignition sequence — it heats to over 2,000°F to light the burner when your thermostat calls for heat. When it fails, the control board will attempt ignition, find no flame, and enter a safety lockout, leaving you with a furnace that clicks through a cycle but never produces heat. This OEM kit includes the primary igniter element (LH33ZS004) along with the bracket and gasket assembly (323901-701) to ensure a complete, leak-free installation.

• Specs: Silicon nitride hot surface igniter | 120V input | Factory-matched mounting footprint for PG9MAA060120AAKA | Paired gasket/bracket assembly (323901-701) included for proper sealing
• OEM vs Generic: OEM silicon nitride igniters are precision-manufactured to exact resistance and thermal-shock tolerances. Generic igniters frequently use lower-grade silicon carbide elements that crack prematurely under repeated thermal cycling, leading to early re-failure within one heating season.
• Install difficulty: 3/5 — Gas furnace work requires care. Turn off gas supply and 120V power at the disconnect before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, torque-sensitive fingers (do NOT touch the igniter element with bare hands — skin oils cause premature failure). Follow the OEM installation sequence in the service manual.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before 3 PM ship same business day from our climate-controlled parts warehouse.

Compatibility: Engineered for the Carrier PG9MAA060120AAKA packaged gas furnace. Always verify your existing igniter part number against LH33ZS004 and confirm the bracket assembly (323901-701) is included in your replacement kit. Our fitment team is available to cross-reference your model and serial number before you order — just reach out via chat or phone.