OEM Carrier Hot Surface Igniter Replacement for PY3PNA018040NA

The hot surface igniter is the component that ignites the gas at the burners during every heating cycle. A 120V or 24V current passes through the igniter element, heating it to roughly 1,800–2,500°F so it can light the gas the instant the gas valve opens. When this igniter fails or develops hairline cracks, the most common symptom is no heat — the inducer runs, you hear the gas valve click, but the burners never light. Homeowners often report short-cycling, a furnace that locks out after three ignition attempts, or a unit that blows cold air before shutting down. Genuine Carrier igniters are silicon nitride, not the older brittle silicon carbide. Silicon nitride resists thermal shock and impact, reaching full glow in about 17 seconds with a typical cold resistance of 40–75 ohms. Always verify resistance with a multimeter — an open circuit (OL) confirms a failed element. OEM matters here because aftermarket igniters frequently use lower-grade silicon carbide with inconsistent resistance, so they don't glow hot enough to ensure clean ignition, leading to delayed lights, sooting, and premature failure. The OEM part also matches the original mounting bracket and gasket exactly. Install difficulty: 2/5. Tools needed: 1/4" nut driver, Phillips screwdriver, and a multimeter for verification. SAFETY: Turn off both electrical power at the breaker AND the gas supply before servicing. Never touch the new ceramic element with bare fingers — skin oils create hot spots that shorten its life. 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 PY3PNA018040NA. 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.