OEM Carrier Hot Surface Igniter for PG92SAS42100CAAA Gas Furnace

The hot surface igniter is the component that lights the gas at the burners on every heat call. When the control board energizes it, the element glows red-hot and ignites the gas as it crosses the burner ports. When it fails, the furnace blower may run but you get no heat, the unit short-cycles, or you hear the inducer and gas valve activate followed by an immediate lockout. Many homeowners notice the furnace "trying" three times then shutting down — a classic failed-igniter symptom on PG92 furnaces. This is a high-temperature silicon nitride igniter, the more durable successor to brittle silicon carbide elements. Silicon nitride resists thermal shock and cracking, tolerates the repeated heat cycles of a 92% AFUE furnace, and reads a cold resistance in the 40–75 ohm range. Verify continuity with a meter — an open (infinite) reading confirms a cracked element. Why OEM matters here: generic igniters often substitute lower-grade carbide elements or loose-tolerance heaters that don't reach the correct surface temperature, so gas fails to light reliably or the element burns out in a single season. The OEM part matches the exact mounting bracket, gasket, and plug so it seats in the burner box without arcing or air leaks. Install difficulty: 2 of 5. Tools: 1/4" nut driver, gloves, and a multimeter to confirm resistance. SAFETY: turn off the gas supply and kill power at the furnace breaker before servicing. Never touch the ceramic element with bare fingers — skin oils create hot spots that crack the igniter prematurely. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PG92SAS42100CAAA. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.