OEM Carrier Hot Surface Igniter LH33ZG001 for Model PG9MAB048080LBSA

This OEM hot surface igniter (part number LH33ZG001) is the factory-specified replacement for the Carrier PG9MAB048080LBSA gas furnace. The igniter is a critical component in the furnace's heating sequence — it heats to approximately 2,500°F to ignite the gas burner. When it fails, the furnace will attempt ignition, fail to light the burner, and enter a safety lockout. Symptoms include a no-heat condition, repeated clicking or cycling attempts, and a flashing fault code on the control board indicating an ignition failure.

• Specs: Hot surface igniter | Silicon nitride element (preferred over silicon carbide for durability) | Factory OEM matched to Carrier PG9MAB048080LBSA | Correct mounting bracket and harness connector included
• OEM vs Generic: OEM igniters are manufactured to exact factory resistance and thermal specifications, ensuring proper timing within the ignition control sequence. Generic igniters can carry wider resistance tolerances, risking nuisance lockouts or premature failure — especially problematic in cold-weather emergencies.
• Install Difficulty: 2/5 — A straightforward swap in most cases. Turn off power and gas before beginning. Tools needed: 1/4" nut driver, needle-nose pliers. Never touch the igniter element with bare hands — skin oils cause hot spots and premature cracking. Use gloves or handle by the ceramic base.
• Warranty: 1-year OEM factory warranty against defects. Orders ship same business day from our warehouse when placed before cutoff.

Compatibility: Engineered specifically for the Carrier PG9MAB048080LBSA gas furnace. Always verify your unit's model and serial data plate before ordering to confirm fit. If you have any questions about compatibility, our HVAC parts specialists are ready to verify fitment before you purchase — no guesswork required. In stock and ships today.