OEM Carrier Hot Surface Igniter LH33ZS004 for Model PG9MAA060140ADKA

This is the factory OEM hot surface igniter (part number LH33ZS004) for the Carrier PG9MAA060140ADKA gas furnace. The hot surface igniter is the critical component that heats to over 1,800°F to ignite the gas burner on every call for heat. When this part fails, the furnace control board detects no ignition, shuts off the gas valve as a safety measure, and locks out — leaving you with no heat. The most common symptom is the furnace attempting to start 2–3 times and then going into a fault lockout sequence.

• Specs: 120V AC | 5 Amp draw | Silicon carbide element | OEM part number LH33ZS004 | Factory-matched fit, form, and function for Carrier PG9MAA060140ADKA
• OEM vs Generic: This is the genuine Carrier OEM igniter — not an aftermarket approximation. Generic igniters vary in element thickness and resistance, which leads to premature cracking and repeat failures. OEM is the correct choice for reliable, long-term operation.
• Install difficulty: 2/5 — Turn off power and gas before starting. Tools needed: 1/4" nut driver, flathead screwdriver, and needle-nose pliers. Avoid touching the ceramic element with bare hands — skin oils cause hot spots and early failure. Photograph the harness connector before unplugging.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed as a direct OEM replacement for the Carrier PG9MAA060140ADKA gas furnace. Also cross-references with LH33ZS001, LH33ZS002, and LH33ZS003 as a superseding replacement. Always confirm your existing igniter's voltage and amperage rating against your unit's data plate before ordering. Our HVAC parts specialists are available to verify fitment — contact us before you order.