OEM Carrier Hot Surface Igniter for PY3PEA042090AA Gas Furnace

The hot surface igniter (HSI) is the element that glows red-hot to ignite the gas at your Carrier furnace's burners on every heat call. When the thermostat calls for heat, the control board sends line voltage to the igniter, it heats to roughly 2,000°F, and the gas valve opens to light the burners. Igniters are among the most failure-prone furnace parts because the element is thermally cycled hundreds of times and is mechanically brittle. When it cracks or burns out, the result is no heat: the inducer runs, you may hear the gas valve click, but the burners never light, the blower pushes cold air, and after a few failed attempts the furnace goes into lockout. A visual check often shows an element that no longer glows or has a visible crack. This is a genuine OEM igniter manufactured to Carrier's specification. Classic silicon carbide elements are fragile and operate at line voltage (~120V) with a typical cold resistance of 40–90 ohms, while newer silicon nitride elements are far more durable and resist thermal-shock cracking. This part matches the original element material, mounting bracket, and connector for a direct fit. Why OEM matters here: an igniter with the wrong resistance won't reach the temperature needed to reliably light gas, causing delayed ignition or repeated lockouts. Cheap generic silicon carbide elements are notorious for cracking within a single season. The correct OEM igniter glows to the right temperature and lasts. Installation difficulty: 2 of 5. Tools needed: 1/4" nut driver, a Phillips screwdriver, and an ohmmeter to verify resistance. #1 safety warning: turn off the gas supply and cut electrical power at the breaker first, and never touch the element with bare fingers — skin oils create hot spots that crack it. 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 PY3PEA042090AA. 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.