OEM Carrier Hot Surface Igniter LH33ZS004 for Model PG9MAA048080ADKA

This is the factory-original OEM hot surface igniter (part number LH33ZS004) for the Carrier PG9MAA048080ADKA gas furnace. The hot surface igniter is the first component to act on every call for heat — it glows to ignition temperature within seconds to light the main burners. When it cracks, burns out, or fails electrically, the furnace control board will attempt ignition, find no flame, and lock out — leaving you with no heat. Common symptoms include a furnace that runs the inducer motor but never ignites, a blinking fault code indicating ignition failure, or a furnace that locks out after 2–3 ignition attempts.

• Specs: 120V AC input | 5 Amp draw | Silicon carbide element | Factory OEM tolerances for reliable cold-start performance
• OEM vs Generic: OEM igniters are manufactured to Carrier's exact resistance and thermal-cycle specifications. Generic aftermarket igniters often use lower-grade silicon carbide that fractures prematurely under repeated heat cycling, leading to repeat failures within one season.
• Install Difficulty: 2/5 — Straightforward replacement. Tools needed: 1/4" or 5/16" nut driver, needle-nose pliers. CRITICAL: Never touch the igniter element with bare hands — skin oils cause hot spots and premature cracking. Handle only by the ceramic bracket. Disconnect power before beginning.
• Warranty: 1-year OEM manufacturer warranty. In-stock — ships same business day from our warehouse.

Compatibility: Confirmed OEM replacement for the Carrier PG9MAA048080ADKA packaged gas furnace. Also cross-references LH33ZS001, LH33ZS002, LH33ZS003 in applicable Carrier, Bryant, and Payne furnace models — always verify your unit's data plate and service literature before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy.