OEM Carrier Hot Surface Igniter LH33ZS004 for Model PG9MAA048060AEKA

This is the genuine OEM hot surface igniter (part number LH33ZS004) factory-specified for the Carrier PG9MAA048060AEKA gas furnace. The igniter is the first link in your furnace's ignition chain — on every call for heat, the control board energizes this component to reach ignition temperature before the gas valve opens. When it fails, the furnace enters a lockout condition after one or more failed ignition attempts, leaving you with no heat. Symptoms include a furnace that starts the inducer, pauses, then shuts down — repeating the cycle without ever lighting the burner.

• Specs: 120V AC | 5 Amp draw | Silicon carbide element | OEM Part # LH33ZS004 | Factory-matched for Carrier PG9MAA048060AEKA
• OEM vs Generic: Genuine Carrier OEM igniters are manufactured to exact resistance and temperature-rise specifications. Generic aftermarket igniters often deviate in element geometry and resistance, causing premature cracking or inconsistent ignition — particularly in colder ambient conditions.
• Install difficulty: 2/5 — Power down and lock out the furnace before beginning. Tools needed: 1/4" nut driver, needle-nose pliers. Disconnect the harness connector, remove the single mounting screw, and swap the igniter. Caution: never touch the ceramic element with bare hands — skin oils cause hot spots and premature failure. Always handle by the bracket.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Verified fit for Carrier model PG9MAA048060AEKA. This igniter also cross-references with superseded Carrier part numbers LH33ZS003, LH33ZS002, and LH33ZS001. Always confirm voltage and amperage against your unit's data plate before ordering. Have a fitment question? Our HVAC parts team verifies compatibility before you buy — contact us before placing your order.