IMAGE COMING SOON
Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Carrier LH33ZS003 hot surface igniter is a genuine OEM replacement designed for the GB1AAV036111AFJA gas furnace. This silicon-nitride igniter glows red-hot on each heat call to light the burners, and it is one of the highest-wear parts in any modern furnace. Symptoms of failure include no ignition, a furnace that clicks but won't light, or a cracked, brittle element after years of thermal cycling. Located at the burner assembly, replacement is a beginner-friendly repair—cut power, remove one or two mounting screws, unplug the connector, and seat the new igniter without touching the fragile element with bare fingers. Built to exact Carrier specifications for fast, consistent light-off and a longer service life than budget aftermarket igniters. Restoring reliable ignition eliminates frustrating no-heat mornings and protects against repeat lockouts. We ship same-day on all orders placed before 3PM CST so you can complete the fix today. Backed by our fit guarantee for the GB1AAV036111AFJA. Order the genuine Carrier LH33ZS003 now.
This part is compatible with Carrier model GB1AAV036111AFJA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.