OEM Carrier Hot Surface Igniter for Furnace PG8UAA024045ADJA

The hot surface igniter is what lights your furnace. On a call for heat, line voltage energizes the igniter until it glows white-hot, then the gas valve opens and the burners ignite off its surface. When the element cracks or weakens, you'll hear the inducer and gas valve cycle but get no ignition — no glow, sometimes faint clicking, and ultimately no heat as the furnace locks out. Hot surface igniters are brittle and degrade with every heating cycle, so they're a leading no-heat failure. This igniter is matched to the PG8UAA024045ADJA furnace, supplied as either silicon carbide or the more durable silicon nitride element depending on the platform. Silicon carbide igniters typically read about 40-90 ohms cold; silicon nitride units read lower and tolerate more on/off cycles and thermal shock. A reading near infinite/open ohms confirms a cracked, failed element. OEM matters because the resistance and mass are engineered to reach ignition temperature in the time window your control board expects. A generic igniter with the wrong resistance won't glow hot enough (or fast enough) to light the gas before the board times out — causing repeat lockouts — or it draws too much current and burns out prematurely. Install difficulty: 2 of 5. Tools: 1/4" nut driver and a multimeter to ohm-check the old and new element. #1 safety warning: turn off the gas AND cut power at the furnace before servicing, and NEVER touch the ceramic element with bare fingers — skin oils create hot spots that crack it on the first cycle. Handle it by the ceramic base only. 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 PG8UAA024045ADJA. 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.