OEM Carrier Hot Surface Igniter 120V 5 Amp for Model PG9MAA024060AAKA

This is the genuine OEM Carrier hot surface igniter, part number LH33ZS004, factory-specified for the Carrier PG9MAA024060AAKA gas furnace. The hot surface igniter is the critical component that heats to ignition temperature — typically over 1,800°F — to light the main burner during every call for heat. When it fails, the furnace control board will attempt ignition, detect no flame, and lock out the system. Common symptoms include no heat, a blinking fault code for ignition failure, or a furnace that clicks through its startup sequence but never produces flame.

• Specs: 120V AC | 5 Amp | Silicon carbide element | OEM part numbers: LH33ZS004 (igniter) + 323901-701 (bracket/gasket assembly) | Factory-matched geometry and lead wire length
• OEM vs Generic: OEM silicon carbide igniters are calibrated to exact resistance and warm-up time specs for the Carrier PG9MAA024060AAKA control board's ignition timing window. Off-brand igniters frequently fail to reach ignition temperature within the board's trial period, causing nuisance lockouts or premature re-failure.
• Install difficulty: 2/5 — Shut off gas and power before beginning. Tools needed: 1/4" nut driver, needle-nose pliers. The igniter element is extremely fragile — never touch the ceramic element with bare hands; skin oils cause premature cracking. Disconnect harness, remove mounting screws, swap igniter and gasket, reconnect, and verify ignition sequence on first call for heat.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PG9MAA024060AAKA gas furnace. Cross-references: LH33ZS003, LH33ZS002, LH33ZS001. Verify voltage (120V) and amperage (5A) against your unit's wiring diagram before ordering. Need fitment confirmation? Our HVAC parts team verifies compatibility before you buy — no guesswork.